2024 |
Wang L, Gopalan S, Naidu R, 'Advancements in nanotechnological approaches to volatile organic compound detection and separation', Current Opinion in Environmental Science & Health, 37 100528-100528 (2024)
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2023 |
Wang L, Cheng Y, Gopalan S, Luo F, Amreen K, Singh RK, et al., 'Review and Perspective: Gas Separation and Discrimination Technologies for Current Gas Sensors in Environmental Applications.', ACS Sens, 8 1373-1390 (2023) [C1]
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2023 |
Dey A, Varagnolo S, Power NP, Vangapally N, Elias Y, Damptey L, et al., 'Doped MXenes A new paradigm in 2D systems: Synthesis, properties and applications', Progress in Materials Science, 139 (2023) [C1]
Since 2011, 2D transition metal carbides, carbonitrides and nitrides known as MXenes have gained huge attention due to their attractive chemical and electronic properties. The div... [more]
Since 2011, 2D transition metal carbides, carbonitrides and nitrides known as MXenes have gained huge attention due to their attractive chemical and electronic properties. The diverse functionalities of MXenes make them a promising candidate for multitude of applications. Recently, doping MXene with metallic and non-metallic elements has emerged as an exciting new approach to endow new properties to this 2D systems, opening a new paradigm of theoretical and experimental studies. In this review, we present a comprehensive overview on the recent progress in this emerging field of doped MXenes. We compare the different doping strategies; techniques used for their characterization and discuss the enhanced properties. The distinct advantages of doping in applications such as electrocatalysis, energy storage, photovoltaics, electronics, photonics, environmental remediation, sensors, and biomedical applications is elaborated. Additionally, theoretical developments in the field of electrocatalysis, energy storage, photovoltaics, and electronics are explored to provide key specific advantages of doping along with the underlying mechanisms. Lastly, we present the advantages and challenges of doped MXenes to take this thriving field forward.
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2023 |
Fang C, Gopalan S, Zhang X, Xu L, Niu J, Naidu R, 'Raman imaging to identify microplastics released from toothbrushes: algorithms and particle analysis.', Environ Pollut, 337 122510 (2023) [C1]
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2023 |
Sen S, Gopalan S, Sellappan R, Grace AN, Sonar P, 'Tin-Based Eco-Friendly Perovskites for Sustainable Future', Advanced Energy and Sustainability Research, 4 (2023) [C1]
Perovskite solar cells (PSCs) have opened a floodgate of diverse research. These highly functional materials have immense potential prospects in renewable energy, optoelectronic a... [more]
Perovskite solar cells (PSCs) have opened a floodgate of diverse research. These highly functional materials have immense potential prospects in renewable energy, optoelectronic applications, to name a few. Most of the perovskites have lead (Pb) as an integral active component. Though the Pb-based organometallic perovskites have shown outstanding performance (over 25%), significant challenges exist including the presence of Pb, its toxicity as well as the instability that can hamper the use of these devices toward practical applications. There are some instances where a complete absence of Pb has been used to achieve respectable device performance, but they face a challenge from the towering success of their counterparts. To offset the issues, significant efforts are being carried out to employ other alternatives (cations) in conjunction with Pb, without distorting the inherent material properties. To that end, tin (Sn) has emerged as a promising alternative to Pb in achieving benchmark performance. Bringing these Sn PSCs into more prominence is a crucial step in taking low Pb or Pb-free PSCs to the next level of research and commercialization. In this topical review, the notable advancements are highlighted, overviewed and recommendations are made for prospects toward environmentally friendly Sn-based perovskite photovoltaics.
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2023 |
Fang C, Gopalan S, Yu J, Naidu R, 'Unveiling microplastics from zippers: Characterisation and visualisation through Raman imaging analysis.', Sci Total Environ, 904 166235 (2023) [C1]
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2023 |
Luo Y, Awoyemi OS, Gopalan S, Nolan A, Robinson F, Fenstermacher J, et al., 'Investigating the effect of polarity reversal of the applied current on electrochemical degradation of per-and polyfluoroalkyl substances', Journal of Cleaner Production, 433 139691-139691 (2023) [C1]
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2022 |
Mostafizur RM, Rasul MG, Nabi MN, Saianand G, 'Properties of Al
As a unique approach to enhance the heat transfer properties of fluids with the inclusion of multiple solid particles with sizes less than 100 nm is called hybrid nanofluids (HNF)... [more]
As a unique approach to enhance the heat transfer properties of fluids with the inclusion of multiple solid particles with sizes less than 100 nm is called hybrid nanofluids (HNF). Due to the exceptional heat transfer capabilities of HNF, they are being evaluated as prospective working fluids for high heat flux systems such as solar collectors. In this paper, the effect of volume fraction and temperature on thermal conductivity (TC), viscosity, and density of Al2O3-MWCNT/radiator coolant hybrid nanofluid are experimentally investigated. X-ray diffraction was used to characterize the Al2O3 and multiwalled carbon nanotube. The experiment was carried out at different volume fractions (0.1¿0.5 vol%) and different temperatures (20¿60 °C). The experimental results found that the TC, viscosity, and density of Al2O3-MWCNT/radiator coolant hybrid nanofluid increase as a function of vol% of nanoparticles. However, the viscosity and density decrease with an increase in temperature. The maximum enhancement of TC was found to be 11% at 0.5 vol% and 60 °C. Therefore, the Al2O3-MWCNT/radiator coolant hybrid nanofluid enhances thermal properties over the base fluid. Thus, the results encourage to use of Al2O3-MWCNT/radiator coolant hybrid nanofluid in solar applications.
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2022 |
Theja VCS, Karthikeyan V, Assi DS, Gopalan S, Roy VAL, 'Probing the Effect of MWCNT Nanoinclusions on the Thermoelectric Performance of Cu3SbS4 Composites', ACS OMEGA, (2022) [C1]
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2022 |
Saianand G, Gopalan A-I, Wanga L, Venkatramanan K, Roy VAL, Sonar P, et al., 'Conducting polymer based visible light photocatalytic composites for pollutant removal: Progress and prospects', ENVIRONMENTAL TECHNOLOGY & INNOVATION, 28 (2022) [C1]
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2021 |
Yoon KB, Ryu HM, Lee GH, Gopalan AI, Sai-anand G, Lee DE, 'Enhanced compressive strength of rammed earth walls stabilized with eco-friendly multi-functional polymeric system', Renewable and Sustainable Energy Reviews, 152 (2021) [C1]
This paper presents an efficient and eco-friendly soil stabilization method for binding the soil particles of rammed earth walls. The method uses a combination of a water-soluble ... [more]
This paper presents an efficient and eco-friendly soil stabilization method for binding the soil particles of rammed earth walls. The method uses a combination of a water-soluble acrylic acid¿acrylic amide copolymer and an epoxy system containing a hardener. The results revealed that the unconfined compressive strength (UCS) of soil stabilized with the mixture of the copolymer and epoxy system was five times higher than that of soil treated with water and three times higher than that of stabilized soil (SS) with only the copolymer. The roles of the copolymer and epoxy system in UCS enhancement were determined based on morphology and apparent density (AD) and elucidated using proposed models. The soil stabilized with the copolymer and epoxy system exhibited the lowest AD and highest UCS. Further, its unique web-like morphology is consistent with the formation of an interpenetrating polymer network (IPN). The carboxylic and amide groups in the copolymer contribute to the formation of the IPN through interactions with the epoxy and amine groups of the hardener. The surface hydroxyl groups in the soil promote the coating of the polymer layer on the soil surface and the inter-particle cohesion, resulting in the formation of larger compacted lumps with a decreased AD and increased UCS. The hydrophilic copolymer acts as a stabilizer and plasticizer. The results confirmed that the epoxy system and copolymer significantly increased the UCS by forming an IPN. Thus, this study provides an efficient and eco-friendly water-soluble copolymer and epoxy system for enhancing the UCS of soil.
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2021 |
Saianand G, Sonar P, Wilson GJ, Gopalan AI, Roy VAL, Unni GE, et al., 'Current advancements on charge selective contact interfacial layers and electrodes in flexible hybrid perovskite photovoltaics', Journal of Energy Chemistry, 54 151-173 (2021) [C1]
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2021 |
Musah J-D, Ilyas AM, Novitskii A, Serhiienko I, Egbo KO, Saianand G, et al., 'Effective decoupling of seebeck coefficient and the electrical conductivity through isovalent substitution of erbium in bismuth selenide thermoelectric material', JOURNAL OF ALLOYS AND COMPOUNDS, 857 (2021) [C1]
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2021 |
Khadke S, Gupta P, Rachakunta S, Mahata C, Dawn S, Sharma M, et al., 'Efficient Plastic Recycling and Remolding Circular Economy Using the Technology of Trust-Blockchain', SUSTAINABILITY, 13 (2021) [C1]
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Nova |
2021 |
Lang X, Gopalan S, Fu W, Ramakrishna S, 'Photocatalytic Water Splitting Utilizing Electrospun Semiconductors for Solar Hydrogen Generation: Fabrication, Modification and Performance', BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 94 8-20 (2021) [C1]
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2021 |
Shajari S, Kowsari E, Seifvand N, Boorboor Ajdari F, Chinnappan A, Ramakrishna S, et al., 'Efficient Photocatalytic Degradation of Gaseous Benzene and Toluene over Novel Hybrid PIL@TiO2/m-GO Composites', CATALYSTS, 11 (2021) [C1]
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Nova |
2021 |
Mannu R, Karthikeyan V, Velu N, Arumugam C, Roy VAL, Gopalan A-I, et al., 'Polyethylene Glycol Coated Magnetic Nanoparticles: Hybrid Nanofluid Formulation, Properties and Drug Delivery Prospects', NANOMATERIALS, 11 (2021) [C1]
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2021 |
Kim S-W, Kwon J, Lee J-S, Kang B-H, Lee S-W, Jung DG, et al., 'An Organic/Inorganic Nanomaterial and Nanocrystal Quantum Dots-Based Multi-Level Resistive Memory Device', Nanomaterials, 11 3004-3004 [C1]
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2021 |
Saianand G, Gopalan A-I, Lee K-P, 'Editorial: Special Issue on "Emerging Nanostructured Catalytic Materials for Energy and Environmental Applications"', CATALYSTS, 11 (2021)
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2021 |
Guchhait A, Dalapati GK, Sonar P, Gopalan S, Suhaimi FB, Das T, et al., 'p-i-n Structured Semitransparent Perovskite Solar Cells with Solution-Processed Electron Transport Layer', Journal of Electronic Materials, 50 5732-5739 (2021) [C1]
p-i-n structured semitransparent perovskite solar cells have already been established as promising energy harvesting devices for building-integrated photovoltaics and flexible sol... [more]
p-i-n structured semitransparent perovskite solar cells have already been established as promising energy harvesting devices for building-integrated photovoltaics and flexible solar cells due to high transparency and low-cost fabrication. In this study, solution based p-i-n structured semitransparent perovskite solar cells (PSCs) have been developed using thin silver (Ag), zinc oxide (ZnO), and aluminium (Al)-doped ZnO nanoparticles (AZO) as buffer layers in addition to PCBM as an electron transport layer (ETL). The thickness of the ZnO and AZO layers are around ~100 nm. In the case of the thin Ag layer, poor interfacial band alignment and less transparency yield device performance with an inferior PCE of 2.53% when illuminated from the top electrode side. On the contrary, Al-doped ZnO possesses excellent optoelectronic performance as a buffer layer for their better electronic conductivity and interfacial band alignment and yield a photovoltaic device characteristic with a power conversion efficiency (PCE) of 5.87% when illuminated from the top electrode side, whereas the standard device with a metal electrode shows a PCE of 6.4%. The semitransparent device also has an average transparency of 21.8% in the visible region. Graphic Abstract: Inverted structure semitransparent perovskite solar cells have been developed for flexible and building integrated photovoltaic (BIPV) applications. Solution processed perovskite solar cells with a power conversation efficiency of 5.87% and visible transmittance of 21.8% make an excellent candidate for BIPV and smart windows. Aluminum-doped zinc oxide (AZO) nanoparticles are found very effective buffer layer for the sputter grown top electrode over PCBM layer to reduce the interface damage and enhanced the overall photovoltaic performance. [Figure not available: see fulltext.]
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2021 |
Kighuta K, Gopalan A-I, Lee D-E, Saianand G, Hou Y-L, Park S-S, et al., 'Optimization and modeling of efficient photocatalytic TiO2-ZnO composite preparation parameters by response surface methodology', JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, 9 (2021) [C1]
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2021 |
Bahrami B, Mabrouk S, Gurung A, Reza KM, Elbohy H, Pathak R, et al., 'Kinetic Monte Carlo Simulation of Perovskite Solar Cells to Probe Film Coverage and Thickness', Advanced Energy and Sustainability Research, 2 (2021) [C1]
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Nova |
2021 |
Dalapati GK, Sharma H, Guchhait A, Chakrabarty N, Bamola P, Liu Q, et al., 'Tin oxide for optoelectronic, photovoltaic and energy storage devices: a review', JOURNAL OF MATERIALS CHEMISTRY A, 9 16621-16684 (2021) [C1]
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Nova |
2021 |
Mannu R, Karthikeyan V, Veerappa MM, Roy VAL, Gopalan A-I, Saianand G, et al., 'Facile Use of Silver Nanoparticles-Loaded Alumina/Silica in Nanofluid Formulations for Enhanced Catalytic Performance toward 4-Nitrophenol Reduction', International Journal of Environmental Research and Public Health, 18 2994-2994 [C1]
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2021 |
Manzhos S, Chueh C-C, Giorgi G, Kubo T, Saianand G, Lüder J, et al., 'Materials Design and Optimization for Next-Generation Solar Cell and Light-Emitting Technologies', The Journal of Physical Chemistry Letters, 12 4638-4657 (2021) [C1]
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Nova |
2020 |
Gopalan AI, Lee JC, Saianand G, Lee KP, Sonar P, Dharmarajan R, et al., 'Recent progress in the abatement of hazardous pollutants using photocatalytic TiO2-based building materials', Nanomaterials, 10 (2020) [C1]
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Nova |
2020 |
Saianand G, Gopalan AI, Lee JC, Sathish CI, Gopalakrishnan K, Unni GE, et al., 'Mixed Copper/Copper-Oxide Anchored Mesoporous Fullerene Nanohybrids as Superior Electrocatalysts toward Oxygen Reduction Reaction', Small, 16 (2020) [C1]
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Nova |
2020 |
Rashmi M, Padmanaban R, Karthikeyan V, Roy VAL, Gopalan AI, Saianand G, et al., 'A comparative evaluation of physicochemical properties and photocatalytic efficiencies of cerium oxide and copper oxide nanofluids', Catalysts, 10 (2020) [C1]
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Nova |
2020 |
Lee JC, Gopalan AI, Saianand G, Lee KP, Kim WJ, 'Manganese and graphene included titanium dioxide composite nanowires: Fabrication, characterization and enhanced photocatalytic activities', Nanomaterials, 10 (2020) [C1]
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Nova |
2020 |
Thunkhamrak C, Chuntib P, Ounnunkad K, Banet P, Aubert P-H, Saianand G, et al., 'Highly sensitive voltammetric immunosensor for the detection of prostate specific antigen based on silver nanoprobe assisted graphene oxide modified screen printed carbon electrode.', Talanta, 208 (2020) [C1]
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Nova |
2020 |
Sridara T, Upan J, Gopalan S, Tuantranont A, Karuwan C, Jakmunee J, 'Non-Enzymatic Amperometric Glucose Sensor Based on Carbon Nanodots and Copper Oxide Nanocomposites Electrode.', Sensors, 20 (2020) [C1]
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2020 |
Mool-am-kha P, Themsirimongkon S, Saipanya S, Saianand G, Tuantranont A, Karuwan C, Jakmunee J, 'Hybrid Electrocatalytic Nanocomposites Based on Carbon Nanotubes/Nickel Oxide/Nafion toward an Individual and Simultaneous Determination of Serotonin and Dopamine in Human Serum', BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 93 1393-1400 (2020) [C1]
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Nova |
2020 |
Gopalan A-I, Lee J-C, Saianand G, Lee K-P, Chun W-Y, Hou Y-L, et al., 'Cost-Effective Production of TiO2 with 90-Fold Enhanced Photocatalytic Activity Via Facile Sequential Calcination and Ball Milling Post-Treatment Strategy', MATERIALS, 13 (2020) [C1]
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2020 |
Bahrami B, Mabrouk S, Adhikari N, Elbohy H, Gurung A, Reza KM, et al., 'Nanoscale control of grain boundary potential barrier, dopant density and filled trap state density for higher efficiency perovskite solar cells', INFOMAT, 2 409-423 (2020) [C1]
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2020 |
Joseph S, Saianand G, Benzigar MR, Ramadass K, Singh G, Gopalan A-I, et al., 'Recent Advances in Functionalized Nanoporous Carbons Derived from Waste Resources and Their Applications in Energy and Environment', ADVANCED SUSTAINABLE SYSTEMS, 5 (2020) [C1]
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2020 |
Reza KM, Gurung A, Bahrami B, Mabrouk S, Elbohy H, Pathak R, et al., 'Tailored PEDOT:PSS hole transport layer for higher performance in perovskite solar cells: Enhancement of electrical and optical properties with improved morphology', Journal of Energy Chemistry, 44 41-50 (2020) [C1]
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2020 |
Zuo G, Zhang Y, Liu S, Guo Z, Zhao Q, Saianand G, et al., 'A ß-cyclodextrin Modified Graphitic Carbon Nitride with Au Co-Catalyst for Efficient Photocatalytic Hydrogen Peroxide Production.', Nanomaterials, 10 (2020) [C1]
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2020 |
Saianand G, Gopalan AI, Roy VAL, Wilson GJ, Jakmunee J, Sonar P, et al., 'Interface modification using a post-treatment-free heteropolyacid for effective charge selective bilayer formation in perovskite solar cells', Materials Letters, 277 (2020) [C1]
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Nova |
2019 |
Benzigar MR, Joseph S, Saianand G, Gopalan AI, Sarkar S, Srinivasan S, et al., 'Highly ordered iron oxide-mesoporous fullerene nanocomposites for oxygen reduction reaction and supercapacitor applications', Microporous and Mesoporous Materials, 285 21-31 (2019) [C1]
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Nova |
2019 |
Lee J-C, Gopalan A-I, Sai-Anand G, Lee K-P, Kim W-J, 'Preparation of Visible Light Photocatalytic Graphene Embedded Rutile Titanium(IV) Oxide Composite Nanowires and Enhanced NOx Removal', CATALYSTS, 9 (2019) [C1]
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Nova |
2019 |
Anantha-Iyengar G, Shanmugasundaram K, Nallal M, Lee KP, Whitcombe MJ, Lakshmi D, Sai-Anand G, 'Functionalized conjugated polymers for sensing and molecular imprinting applications', Progress in Polymer Science, 88 1-129 (2019) [C1]
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Nova |
2019 |
Bui QT, Yu IK, Gopalan AI, Saianand G, Kim W, Choi SH, 'Facile fabrication of metal oxide based catalytic electrodes by AC plasma deposition and electrochemical detection of hydrogen peroxide', Catalysts, 9 (2019) [C1]
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Nova |
2019 |
Xu B, Saianand G, Roy VAL, Qiao Q, Reza KM, Kang SW, 'Employing PCBTDPP as an efficient donor polymer for high performance ternary polymer solar cells', Polymers, 11 (2019) [C1]
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Nova |
2019 |
Sai-Anand G, Sivanesan A, Benzigar MR, Singh G, Gopalan A-I, Baskar AV, et al., 'Recent Progress on the Sensing of Pathogenic Bacteria Using Advanced Nanostructures', BULLETIN OF THE CHEMICAL SOCIETY OF JAPAN, 92 216-244 (2019) [C1]
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Nova |
2019 |
Xu B, Sai-Anand G, Unni GE, Jeong HM, Kim JS, Kim SW, et al., 'Pyridine-based additive optimized P3HT:PC61BM nanomorphology for improved performance and stability in polymer solar cells', Applied Surface Science, 484 825-834 (2019) [C1]
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Nova |
2018 |
Xu B, Sai-Anand G, Jeong HM, Kim SW, Kim JS, Kwon JB, Kang SW, 'Improving air-stability and performance of bulk heterojunction polymer solar cells using solvent engineered hole selective interlayer', Materials, 11 1-12 (2018) [C1]
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2018 |
Sai-Anand G, Dubey A, Gopalan A-I, Venkatesan S, Ruban S, Reza KM, et al., 'Additive assisted morphological optimization of photoactive layer in 1110 polymer solar cells', SOLAR ENERGY MATERIALS AND SOLAR CELLS, 182 246-254 (2018) [C1]
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Nova |
2018 |
Xu B, Sai-Anand G, Gopalan AI, Qiao Q, Kang SW, 'Improving photovoltaic properties of P3HT:IC
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Nova |
2018 |
Joseph S, Benzigar MR, Ilbeygi H, Gopalan SA, Lakhi KS, Ramadass K, et al., 'Mesoporous Carbons with Hexagonally Ordered Pores Prepared from Carbonated Soft-Drink for CO2 Capture at High Pressure', JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 18 7830-7837 (2018)
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2018 |
Gopalan S-A, Gopalan A-I, Vinu A, Lee K-P, Kang S-W, 'A new optical-electrical integrated buffer layer design based on gold nanoparticles tethered thiol containing sulfonated polyaniline towards enhancement of solar cell performance', SOLAR ENERGY MATERIALS AND SOLAR CELLS, 174 112-123 (2018)
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2017 |
Jiang Y, Sai-Anand G, Xu B, Lee J-S, Kim S-W, Yeom S-H, et al., 'Enhancing the Photovoltaic Performance of Polymer Solar Cells by Manipulating Photoactive/Metal Interface', JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 17 8024-8030 (2017)
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2017 |
Lee J-S, Kang B-H, Kim S-H, Lee J-W, Lee S-W, Kim S-W, et al., 'All-solution-processed high-brightness hybrid white quantum-dot light-emitting devices utilizing polymer modified quantum dots', ORGANIC ELECTRONICS, 42 393-398 (2017)
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2017 |
Xu B, Gopalan S-A, Gopalan A-I, Muthuchamy N, Lee K-P, Lee J-S, et al., 'Functional solid additive modified PEDOT: PSS as an anode buffer layer for enhanced photovoltaic performance and stability in polymer solar cells', SCIENTIFIC REPORTS, 7 (2017)
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2017 |
Xu B, Gopalan S-A, Gopalan A-I, Muthuchamy N, Lee K-P, Lee J-S, et al., 'Functional solid additive modified PEDOT: PSS as an anode buffer layer for enhanced photovoltaic performance and stability in polymer solar cells (vol 7, pg 45079, 2017)', SCIENTIFIC REPORTS, 7 (2017)
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2016 |
Shanmugasundaram K, Sai-Anand G, Gopalan AI, Lee HG, Yeo HK, Kang SW, Lee KP, 'Direct electrochemistry of cytochrome c with three-dimensional nanoarchitectured multicomponent composite electrode and nitrite biosensing', Sensors and Actuators, B: Chemical, 228 737-747 (2016)
A novel electrochemical nitrite ion (NO2-) biosensor was designed and fabricated by modifying a glassy carbon electrode (GCE) into three-dimensional nanoarchitectured electrode (3... [more]
A novel electrochemical nitrite ion (NO2-) biosensor was designed and fabricated by modifying a glassy carbon electrode (GCE) into three-dimensional nanoarchitectured electrode (3DNE) using a multicomponent nanocomposite (MCNC) film composed of graphene embedded titanium dioxide nanowires (TiO2(G) NWs), thiol-functionalized polyaniline (PANI(SH)), gold nanoparticles (Au), and immobilized cytochrome c (cyt c). The new NO2- biosensor was designated as cyt c/TiO2(G) NWs@PANI(SH)-Au MCNC/3DNE. The assembly of the 3DNE, involved sequential depositions of PANI(SH) and Au over previously synthesized TiO2(G) NWs by electrospinning-hydrothermal processes and immobilization of the cyt c onto the TiO2(G) NWs/PANI(SH)/Au MCNC film. The cyt c/TiO2(G) NWs@PANI(SH)-Au MCNC/3DNE exhibited direct electron transfer from cyt c to the electrode at a high rate constant (25.34 s-1). The fabricated cyt c/TiO2(G) NWs@PANI(SH)-Au MCNC/3DNE showed high selectivity to NO2- ions with excellent sensitivity (9.2 µA/mM), a wide linear concentration range (10 µM-720 mM), and a low detection limit (0.05 µM). Additionally, the cyt c/TiO2(G) NWs@PANI(SH)-Au MCNC/3DNE exhibited high stability with good reproducibility and repeatability.
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2016 |
Sai-Anand G, Gopalan AI, Lee KP, Venkatesan S, Qiao Q, Kang BH, et al., 'Electrostatic nanoassembly of contact interfacial layer for enhanced photovoltaic performance in polymer solar cells', Solar Energy Materials and Solar Cells, 153 148-163 (2016)
Improved performance in the bulk heterojunction (BHJ) polymer solar cells (PSCs) can be achieved through multiple mechanisms by tuning the structure of the components and design a... [more]
Improved performance in the bulk heterojunction (BHJ) polymer solar cells (PSCs) can be achieved through multiple mechanisms by tuning the structure of the components and design architecture. Therefore, in this study, we designed and fabricated an electrostatically assembled contact interfacial layer utilizing the electrostatic interactions between positively charged poly(diallyldimethylammonium chloride) (PDDA) and negatively charged sulfonate ions in a polymer, i.e. toluene sulfonic acid incorporated self-doped polyaniline (SPAN(TSA-)) (designated as SPAN(TSA-)/EA-CIL). We investigated the influence of SPAN(TSA-)/EA-CIL on the photovoltaic performance of BHJ PSCs. We adopted a simple "dip-dry" technique to fabricate the SPAN(TSA-)/EA-CIL. Cyclic Voltammetry, X-ray photoelectron spectroscopy, Ultraviolet-visible spectroscopy, water contact angle measurements, electrochemical impedance spectroscopy and atomic force microscopy were employed to characterize the new SPAN(TSA-)/EA-CIL and to elucidate the associated enhancements in the photovoltaic performance. The fabricated PSCs with the SPAN(TSA-)/EA-CILs exhibited an improved photoconversion efficiency (PCE) through enhancement of both the short-circuit current density (JSC) and fill factor compared to the device consisting of only SPAN(TSA-) or PEDOT:PSS. A plausible mechanism is presented here that explains the enhanced JSC and PCE in terms of transient dipole induction at the SPAN(TSA-)/EA-CIL surface. Interestingly, the PCE of devices based on ITO/SPAN(TSA-)/EA-CIL(1:1)/P3HT:PC60BM/Al and ITO/SPAN(TSA-)/EA-CIL(1:1)/PBDTTT-C-T:PC70BM/Al was enhanced by 13% (3.19-3.67%) and 10% (5.11-5.60%) compared to those of devices based on ITO/PEDOT:PSS/P3HT:PC60BM/Al and ITO/PEDOT:PSS/PBDTTT-C-T:PC70BM/Al, respectively. The present work thus identifies a novel class of low-temperature processable interface layer with a potential to fabricate highly efficient photovoltaic devices.
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2016 |
Haldorai Y, Hwang SK, Gopalan AI, Huh YS, Han YK, Voit W, et al., 'Direct electrochemistry of cytochrome c immobilized on titanium nitride/multi-walled carbon nanotube composite for amperometric nitrite biosensor', Biosensors and Bioelectronics, 79 543-552 (2016) [C1]
In this report, titanium nitride (TiN) nanoparticles decorated multi-walled carbon nanotube (MWCNTs) nanocomposite is fabricated via a two-step process. These two steps involve th... [more]
In this report, titanium nitride (TiN) nanoparticles decorated multi-walled carbon nanotube (MWCNTs) nanocomposite is fabricated via a two-step process. These two steps involve the decoration of titanium dioxide nanoparticles onto the MWCNTs surface and a subsequent thermal nitridation. Transmission electron microscopy shows that TiN nanoparticles with a mean diameter of =20nm are homogeneously dispersed onto the MWCNTs surface. Direct electrochemistry and electrocatalysis of cytochrome c immobilized on the MWCNTs-TiN composite modified on a glassy carbon electrode for nitrite sensing are investigated. Under optimum conditions, the current response is linear to its concentration from 1µM to 2000µM with a sensitivity of 121.5µAµM-1cm-2 and a low detection limit of 0.0014µM. The proposed electrode shows good reproducibility and long-term stability. The applicability of the as-prepared biosensor is validated by the successful detection of nitrite in tap and sea water samples.
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2016 |
Lee SW, Cha SH, Choi KJ, Kang BH, Lee JS, Kim SW, et al., 'Low dark-current, high current-gain of PVK/ZnO nanoparticles composite-based UV photodetector by PN-heterojunction control', Sensors (Switzerland), 16 (2016) [C1]
We propose a solution-processable ultraviolet (UV) photodetector with a pn-heterojunction hybrid photoactive layer (HPL) that is composed of poly-n-vinylcarbazole (PVK) as a p-typ... [more]
We propose a solution-processable ultraviolet (UV) photodetector with a pn-heterojunction hybrid photoactive layer (HPL) that is composed of poly-n-vinylcarbazole (PVK) as a p-type polymer and ZnO nanoparticles (NPs) as an n-type metal oxide. To observe the effective photo-inducing ability of the UV photodetector, we analyzed the optical and electrical properties of HPL which is controlled by the doping concentration of n-type ZnO NPs in PVK matrix. Additionally, we confirmed that the optical properties of HPL dominantly depend on the ZnO NPs from the UV-vis absorption and the photoluminescence (PL) spectral measurements. This HPL can induce efficient charge transfer in the localized narrow pn-heterojunction domain and increases the photocurrent gain. It is essential that proper doping concentration of n-type ZnO NPs in polymer matrix is obtained to improve the performance of the UV photodetector. When the ZnO NPs are doped with the optimized concentration of 3.4 wt.%, the electrical properties of the photocurrent are significantly increased. The ratio of the photocurrent was approximately 103 higher than that of the dark current.
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2016 |
Lee SW, Choi KJ, Kang BH, Lee JS, Kim SW, Kwon JB, et al., 'Low dark current and improved detectivity of hybrid ultraviolet photodetector based on carbon-quantum-dots/zinc-oxide-nanorod composites', Organic Electronics, 39 250-257 (2016)
In this study, we fabricated an ultraviolet (UV) photodetector by blending a hybrid photoactive layer (HPL) that is composed of a hybrid structure containing Carbon Quantum Dots (... [more]
In this study, we fabricated an ultraviolet (UV) photodetector by blending a hybrid photoactive layer (HPL) that is composed of a hybrid structure containing Carbon Quantum Dots (CQDs) and Zinc Oxide Nanorods (ZnO NRs). To observe the effective photo-inducing abilities of CQDs and ZnO NRs, we analyzed the electrical properties of a UV photodetector using an HPL of CQDs/ZnO NRs. Under an illumination of 365¿nm UV light with an intensity of 1¿mW/cm2, the UV photodetector exhibited a high detectivity of 8.33¿×¿1012 Jones, which is higher than that of a UV photodetector using a HPL of blended poly-n-vinylcarbazole (PVK) and ZnO NRs. Experimental results show that an HPL of blended CQDs/ZnO NRs can induce efficient charge extraction from CQDs and ZnO NRs. In addition, CQDs act as charge controllers that enable hole-electron separation in the device upon UV illumination. These results indicate that synthesized CQDs can substitute for a charge transport polymer (i.e., PVK) and that a UV photodetector using CQDs can exhibit high detectivity.
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2016 |
Kang BH, Lee JS, Lee SW, Kim SW, Lee JW, Gopalan SA, et al., 'Efficient exciton generation in atomic passivated CdSe/ZnS quantum dots light-emitting devices', Scientific Reports, 6 (2016)
We demonstrate the first-ever surface modification of green CdSe/ZnS quantum dots (QDs) using bromide anions (Br -) in cetyl trimethylammonium bromide (CTAB). The Br - ions reduce... [more]
We demonstrate the first-ever surface modification of green CdSe/ZnS quantum dots (QDs) using bromide anions (Br -) in cetyl trimethylammonium bromide (CTAB). The Br - ions reduced the interparticle spacing between the QDs and induced an effective charge balance in QD light-emitting devices (QLEDs). The fabricated QLEDs exhibited efficient charge injection because of the reduced emission quenching effect and their enhanced thin film morphology. As a result, they exhibited a maximum luminance of 71,000 cd/m 2 and an external current efficiency of 6.4 cd/A, both significantly better than those of their counterparts with oleic acid surface ligands. In addition, the lifetime of the Br- treated QD based QLEDs is significantly improved due to ionic passivation at the QDs surface.
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2015 |
Lee HG, Gopalan AI, Sai-Anand G, Lee BC, Kang SW, Lee KP, 'Facile synthesis of functionalized graphene-palladium nanoparticle incorporated multicomponent TiO
Herein, we report the synthesis of functionalized graphene-Pd nanoparticle incorporated titanium dioxide composite nanofibers (designated as TiO2@G(f)-Pd-CNFs) by combining electr... [more]
Herein, we report the synthesis of functionalized graphene-Pd nanoparticle incorporated titanium dioxide composite nanofibers (designated as TiO2@G(f)-Pd-CNFs) by combining electrospinning, hydrothermal and calcination processes. For comparison, functionalized graphene -incorporated titanium dioxide composite nanofibers (designated as TiO2@G(f) CNFs) were also prepared. The structural, morphological and optical properties of the TiO2-based composite nanofibers were characterized by field emission scanning electron microscopy, high resolution transmission electron microscopy, Raman spectroscopy, X-Ray photoelectron spectroscopy, X-Ray diffraction analysis and thermogravimetry. The morphologies of the composite nanofibers were systematically investigated by transmission electron microscope and scanning electron microscope. The components in the composite nanofibers were identified with different morphologies: a fibrillar structure of the TiO2 nanofibers, irregular shaped graphene platelets and nanosized (sizes in the range of 4-12 nm) spherical Pd particles (around 8 nm). Thermogravimetry suggests that the inclusion of graphene and Pd improves the thermal stability of TiO2. The photocatalytic degradation of methylene blue (MB) was examined in the presence of the catalyst, TiO2@G(f)-Pd-CNFs under UV-irradiation and compared with TiO2 NFs and TiO2@G(f) CNFs. The highest photodegradation efficiency was observed for TiO2@G(f)-Pd-CNFs and attributed to the synergistic influence of the components, TiO2 NFs, Pd NPs and G(f).
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2015 |
Lee HG, Sai-Anand G, Komathi S, Gopalan AI, Kang SW, Lee KP, 'Efficient visible-light-driven photocatalytic degradation of nitrophenol by using graphene-encapsulated TiO
In this work, a new hybrid nanocatalyst, namely titanium dioxide (TiO2) composite nanowires, encapsulated with graphene (G) and palladium nanoparticles (Pd NPs) (designated as G-P... [more]
In this work, a new hybrid nanocatalyst, namely titanium dioxide (TiO2) composite nanowires, encapsulated with graphene (G) and palladium nanoparticles (Pd NPs) (designated as G-Pd@TiO2-CNWs), was prepared. In preparing the nanowires, a combination of electrospinning and hydrothermal approaches was employed. The visible-light-driven photocatalytic performance of G-Pd@TiO2-CNWs was investigated using the reduction of 4-nitrophenol (4-NP) as a model reaction. The results showed that G-Pd@TiO2-CNWs converted nearly 100% of 4-NP under visible light irradiation. The reaction kinetics of the photocatalytic reduction of 4-NP was studied by UV-vis spectrophotometry and the apparent rate constant was determined and compared with those for other supported TiO2 catalysts. Furthermore, the spent G-Pd@TiO2-CNWs could be recovered by simple centrifugation and reused. The work is expected to shed new light on the development of G-incorporated hybrid nanostructures for harvesting light energy and on the development of new photocatalysts for the removal of environmental pollutants.
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2015 |
Lee SW, Kim JS, Lee JS, Jeong HM, Gopalan SA, Kang SW, et al., 'Enhancement of CdSe/ZnS quantum dot-based LED by core-shell modification', Journal of the Korean Physical Society, 66 82-86 (2015)
In this study, we performed an analysis of quantum-dot-based light-emitting diodes (QD-based LEDs) to investigate the defects at the interface between the core and the shell of th... [more]
In this study, we performed an analysis of quantum-dot-based light-emitting diodes (QD-based LEDs) to investigate the defects at the interface between the core and the shell of the quantum dots (QDs) using gradient-shell QDs (CdSe/Cd1-xZnxSe1-ySy/ZnS, G-QDs) and single-shell QDs (CdSe/ZnS, S-QDs). QDs of the general core-shell type have defects at the core and shell junction interface due to the different lattice constants. However, G-QDs have a low number of lattice defects in the form of a step function between the core and the shell owing to their chemical composition and can more easily confine electron-hole pairs (EHP). Therefore, we fabricated QD-based LEDs by using two emissive layer (G-QDs and S-QDs) and analyzed their characteristics, including their brightness and efficiency.
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2015 |
Sai-Anand G, Gopalan AI, Lee KP, Venkatesan S, Kang BH, Lee SW, et al., 'A futuristic strategy to influence the solar cell performance using fixed and mobile dopants incorporated sulfonated polyaniline based buffer layer', Solar Energy Materials and Solar Cells, 141 275-290 (2015)
In this work, we hypothesized and demonstrated a new strategy to tune/modulate the electrochemical, microstructural and opto-electronic properties based on the manipulation of the... [more]
In this work, we hypothesized and demonstrated a new strategy to tune/modulate the electrochemical, microstructural and opto-electronic properties based on the manipulation of the intentionally included external dopant ion (X<sup>-</sup>) within the sulfonated polyaniline (SPANs). Through our new strategy, we developed a different type of SPANs comprising of internal (fixed) and external (mobile) dopant. The X<sup>-</sup> included SPANs were prepared through a sequential doping, dedoping and redoping processes and designated as SPAN-R (X<sup>-</sup>) (where X<sup>-</sup> is the anion of toluene sulfonic acid (TSA) or camphor sulfonic acid (CSA) or napthalene sulfonic acid (NSA)) by modifying the structure of 4-aminodiphenylamine-2-sulfonic acid with additional polyaniline chains to accommodate X<sup>-</sup>. SPAN-R(X<sup>-</sup>) polymers were characterized by cyclic voltammetry, UV-visible spectroscopy, attenuated total reflectance-Fourier transform infrared spectroscopy, X-ray diffraction, X-ray photoelectron spectroscopy and Atomic force microscopy to elucidate the influence of X<sup>-</sup> on the electrical, optoelectronic, microstructural properties and surface properties on the performance characteristics of polymer solar cells (PSCs) fabricated with SPAN-R(X<sup>-</sup>) as a buffer layer. The electrochemical band gap, degree of doping (DD), electrical conductivity and degree of crystallinity (CD) were evaluated and correlated to understand the influence of X<sup>-</sup> on them. The power conversion efficiency (PCE) of PSCs featuring SPAN-R(TSA<sup>-</sup>) as a buffer layer showed a ~3.2 times improvement in the overall PCE, compared with the PSCs having pristine SPAN (not containing X<sup>-</sup>) as a buffer layer and is higher than that of SPAN-R(CSA<sup>-</sup>) and SPAN-R(NSA<sup>-</sup>) based devices. The superior photovoltaic (PV) characteristics observed for SPAN-R(TSA<sup>-</sup>) is due to the synergistic contributions from appropriate energy-level/work function alignment, higher conductivity, higher DD and induced molecular order with the photoactive layer. Importantly, PSCs with SPAN-R(X<sup>-</sup>) buffer layer processed at low temperature (30 °C) (without thermal treatment) exhibited improved PV characteristics and better air-stability as compared to the device having poly(3,4-ethylenedioxythiophene):polystyrene sulfonate (PEDOT:PSS) (thermally annealed at 150 °C) as buffer layer. As buffer layers, SPAN-R(X<sup>-</sup>) polymers, containing fixed and mobile dopants, are most attractive because of low temperature processability and improved solar cell performance.
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2015 |
Lee JS, Yoon NR, Kang BH, Lee SW, Gopalan SA, Kim SW, et al., 'Au-polypyrrole framework nanostructures for improved localized surface plasmon resonance volatile organic compounds gas sensing', Journal of Nanoscience and Nanotechnology, 15 7738-7742 (2015)
In this paper, we propose an Au-polypyrrole (Ppy) nanorod gas sensor for the detection of volatile organic compound (VOC) gases. This gas sensor operates on the principle of local... [more]
In this paper, we propose an Au-polypyrrole (Ppy) nanorod gas sensor for the detection of volatile organic compound (VOC) gases. This gas sensor operates on the principle of localized surface plasmon resonance (LSPR). The Au-Ppy nanorods used in this experiment were synthesized using an anodic aluminum oxide template by the electrochemical deposition method. Using field emission scanning electron microscopy, we confirmed that the Au-Ppy nanorod arrays were successfully fabricated with a uniform size. By depositing gold, the Au-Ppy nanorods exhibited both optical and LSPR interference. The gas sensing properties of the fabricated nanorods were tested for VOCs such as acetic acid, benzene, and toluene with a short response time (~1 min). Moreover, the proposed VOC gas sensing system was tested with three types of VOC gases over a wide concentration range from 10 to 100 ppm. Highest sensitivity was observed for acetic acid gas, which had a linear relation with the gas concentration, indicating that the system can be used as a gas sensor.
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2015 |
Kang BH, Kim JS, Lee JS, Lee SW, Sai-Anand G, Jeong HM, et al., 'Solution processable CdSe/ZnS quantum dots light-emitting diodes using ZnO nanocrystal as electron transport layer', Journal of Nanoscience and Nanotechnology, 15 7416-7420 (2015)
In this paper, we propose interface engineering between cadmium selenide/zinc sulfide (CdSe/ZnS) quantum dots (QDs) as the emissive layer (EML) and ZnO nanocrystals (NCs) as the e... [more]
In this paper, we propose interface engineering between cadmium selenide/zinc sulfide (CdSe/ZnS) quantum dots (QDs) as the emissive layer (EML) and ZnO nanocrystals (NCs) as the electron transport layer (ETL) for reducing the potential barrier in QDs based light-emitting diode (QLED). The n-type ZnO NCs were effective in confining charge to the QDs EML because of their wide band gap. The ZnO NCs were synthesized using a modified sol-gel process and were applied as the ETL in QLED. For comparison, a standard QLED with Tris(8-hydroxyquinolinato)aluminium as the ETL was also fabricated. The standard QLED was shown to have a luminance of 11,240 cd/m2 and current efficiency of 2.3 cd/A. However, QLED with ZnO NCs showed a higher luminance of 28,760 cd/m2 and current efficiency of 4.9 cd/A than the reference structure, and so has more efficient charge transport. Thus, QLED with ZnO NCs not only simplified the process, but also enhanced the luminance and current efficiency by factor of two.
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2015 |
Sai-Anand G, Han B, Kang BH, Kim SW, Lee SW, Lee JS, et al., 'Incorporation of gold nanodots into poly(3,4-ethylenedioxythiophene): Poly(styrene sulfonate) for an efficient anode interfacial layer for improved plasmonic organic photovoltaics', Journal of Nanoscience and Nanotechnology, 15 7092-7098 (2015)
In this paper, we demonstrate a simple strategy for the incorporation of gold nanodots (GNDs) into poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films, towa... [more]
In this paper, we demonstrate a simple strategy for the incorporation of gold nanodots (GNDs) into poly(3,4-ethylenedioxythiophene):poly(styrene sulfonate) (PEDOT:PSS) films, towards fabrication of an efficient anode interfacial layer in order to improve the performance of bulk heterojunction (BHJ) solar cells that use a blend of poly(3-hexyl thiophene) and [6,6]-phenyl-C71 butyric acid methyl ester as the organic active layer. We synthesized citrate-stabilized GNDs, with sizes in the range of ~20-30 nm, by initially blending them into PEDOT:PSS by aqueous dispersion. The influence of GNDs in the PEDOT:PSS layer on the photovoltaic characteristics of BHJ solar cells was investigated. Our results show that the improved performance is due to the enhanced conductivity and increased interfacial contact area between the PEDOT:PSS and organic active layer, owing to the inclusion of GNDs into the PEDOT:PSS. The BHJ solar cell included with GNDs (0.02 wt%) into PEDOT:PSS exhibited a power conversion efficiency (PCE) of 2.92% with an open circuit voltage of 0.61 V, fill factor of 50%, and a short-circuit current density of 9.51 mA/cm2, whereas the pristine device exhibited a PCE of 2.52%.
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2015 |
Kang BH, Lee SW, Lim SW, Kim JS, Sai-Anand G, Lee SH, et al., 'Enhanced performance of light-emitting diodes by surface ligand modification on quantum dots', Journal of Nanoscience and Nanotechnology, 15 7169-7172 (2015)
The electrical characteristics of quantum dots (QDs) can vary depending on the surface modulation, which can change the luminance and efficiency of electroluminescent devices. Thu... [more]
The electrical characteristics of quantum dots (QDs) can vary depending on the surface modulation, which can change the luminance and efficiency of electroluminescent devices. Thus, understanding surface ligand is essential in improving the performance of QDs-based light-emitting diodes (LEDs). We analyzed the performance of QDs-based LEDs with respect to the QD surface volume. On the QD surfaces, the 1.1 nm-long tryoctylphosphine oxide (TOPO) ligand with three neck-type structure was replaced with a 1.7 nm-long oleic acid (OA) ligand with a one neck-type structure to evaluate the dependence of the LED properties on the ligand length. With all other conditions being identical, the luminance and efficiency of the QDs-based LEDs with an OA ligand were approximately 1,000 cd/m2 greater and 1.5 times higher, respectively, than those of the QDs-based LEDs with a TOPO ligand. These results show that if the physical length of the surface ligand is relatively long, decreasing the surface area would result in increased injection of electrons and holes into the QDs, increasing the luminance and efficiency.
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2015 |
Lee HG, Gopalan AI, Sai-Anand G, Kang SW, Lee KP, 'New heterojunction titanium dioxide nanowire as photocatalyst', Journal of Nanoscience and Nanotechnology, 15 7421-7425 (2015)
Graphene and metal nanoparticles were incorporated into titanium dioxide nanowires. The heterojunction generated in the titanium dioxide nanowires was beneficially utilized for ph... [more]
Graphene and metal nanoparticles were incorporated into titanium dioxide nanowires. The heterojunction generated in the titanium dioxide nanowires was beneficially utilized for photocatalytic degradation of Rhodamine-B.
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2015 |
Lee JS, Kim SW, Jang EY, Kang BH, Lee SW, Sai-Anand G, et al., 'Rapid and Sensitive Detection of Lung Cancer Biomarker Using Nanoporous Biosensor Based on Localized Surface Plasmon Resonance Coupled with Interferometry', Journal of Nanomaterials, 2015 (2015)
We propose a nanobiosensor to evaluate a lung cancer-specific biomarker. The nanobiosensor is based on an anodic aluminum oxide (AAO) chip and functions on the principles of local... [more]
We propose a nanobiosensor to evaluate a lung cancer-specific biomarker. The nanobiosensor is based on an anodic aluminum oxide (AAO) chip and functions on the principles of localized surface plasmon resonance (LSPR) and interferometry. The pore-depth of the fabricated nanoporous AAO chip was 1 µm and was obtained using a two-step electrochemical anodization process. The sensor chip is sensitive to the refractive index (RI) changes of the surrounding medium and also provides simple and label-free detection when specific antibodies are immobilized on the gold-deposited surface of the AAO chip. In order to confirm the effectiveness of the sensor, the antibodies were immobilized on the surface of the AAO chip, and the lung cancer-specific biomarker was applied atop of the immobilized-antibody layer using the self-assembled monolayer method. The nanoporous AAO chip was used as a sensor system to detect serum amyloid A1, which is a lung cancer-specific biomarker. The specific reaction of the antigen-antibody contributes to the change in the RI. This in turn causes a shift in the resonance spectrum in the refractive interference pattern. The limit of detection (LOD) was found to be 100 ag/mL and the biosensor had high sensitivity over a wide concentration range.
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2014 |
Lee J-S, Yoon N-R, Kang B-H, Lee S-W, Gopalan S-A, Jeong H-M, et al., 'Response Characterization of a Fiber Optic Sensor Array with Dye-Coated Planar Waveguide for Detection of Volatile Organic Compounds', SENSORS, 14 11659-11671 (2014)
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2014 |
Lee S-H, Choi S-H, Gopalan S-A, Lee K-P, Anantha-Iyengar G, 'Preparation of new self-humidifying composite membrane by incorporating graphene and phosphotungstic acid into sulfonated poly(ether ether ketone) film', INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 39 17162-17177 (2014)
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2014 |
Sai-Anand G, Philips MF, Lee K-P, Kang S-W, Gopalan AI, 'Facile Electrodeposition of Flower Like Gold Nanostructures on a Conducting Polymer Support', JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY, 14 3256-3261 (2014)
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2014 |
Han B, Gopalan S-A, Lee K-D, Kang B-H, Lee S-W, Lee J-S, et al., 'Preheated solvent exposure on P3HT:PCBM thin film: A facile strategy to enhance performance in bulk heterojunction photovoltaic cells', CURRENT APPLIED PHYSICS, 14 1443-1450 (2014)
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2014 |
Sai-Anand G, Gopalan A-I, Kang S-W, Komathi S, Lee K-P, 'One Pot Synthesis of New Gold Nanoparticles Dispersed Poly(2-aminophenyl boronic acid) Composites for Fabricating an Affinity Based Electrochemical Detection of Glucose', SCIENCE OF ADVANCED MATERIALS, 6 1356-1364 (2014)
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2014 |
Lee HG, Sai-Anand G, Lee K-P, Kang S-W, Gopalan AI, 'Development of Novel Electrospun Functional Nanofibrous Mats for Efficient Uranium/Lithium Recovery', SCIENCE OF ADVANCED MATERIALS, 6 1365-1374 (2014)
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2014 |
Gopalan S-A, Seo M-H, Anantha-Iyengar G, Han B, Lee S-W, Kwon D-H, et al., 'Mild wetting poor solvent induced hydrogen bonding interactions for improved performance in bulk heterojunction solar cells', JOURNAL OF MATERIALS CHEMISTRY A, 2 2174-2186 (2014)
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2013 |
Anand GS, Gopalan AI, Kang S-W, Lee K-P, 'Development of a surface plasmon assisted label-free calorimetric method for sensitive detection of mercury based on functionalized gold nanorods', JOURNAL OF ANALYTICAL ATOMIC SPECTROMETRY, 28 488-498 (2013)
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2013 |
Komathi S, Gopalan AI, Kim S-K, Anand GS, Lee K-P, 'Fabrication of horseradish peroxidase immobilized poly(N-[3-(trimethoxy silyl)propyl]aniline) gold nanorods film modified electrode and electrochemical hydrogen peroxide sensing', ELECTROCHIMICA ACTA, 92 71-78 (2013)
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2013 |
Sai-Anand G, Gopalan AI, Kang S-W, Lee K-P, 'Fabrication of Gold Nanoflower Anchored Conducting Polymer Hybrid Film Electrode by Pulse Potentiostatic Deposition', IEEE ELECTRON DEVICE LETTERS, 34 1065-1067 (2013)
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2013 |
Gopalan AI, Komathi S, Anand GS, Lee K-P, 'Nanodiamond based sponges with entrapped enzyme: A novel electrochemical probe for hydrogen peroxide', BIOSENSORS & BIOELECTRONICS, 46 136-141 (2013)
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2013 |
Seo M-H, Kim K-J, Han B, Anand GS, Kim S-H, Lee S-W, Kang S-W, 'Effect Of Solvent Annealing For Efficient Polymer Solar Cells', APPLIED ENERGY TECHNOLOGY, PTS 1 AND 2, 724-725 147-+ (2013)
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2011 |
Gopalan SA, Park J-T, 'Energy-Efficient MAC Protocols for Wireless Body Area Networks: A Survey', CHINA COMMUNICATIONS, 8 1-10 (2011)
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2010 |
Anand GS, Komathi S, Gopalan AI, Lee K-P, 'Fabrication of a Self-Powered Glucose Sensor Using Carbon Nanotube-Based Nanomesh and Direct Electron Transfer: A Prospective Approach for Energy Harvesting in Sensor Networks', JOURNAL OF NANOELECTRONICS AND OPTOELECTRONICS, 5 129-134 (2010)
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