Dr Matthew Barr

Dr Matthew Barr

Research Associate

School of Mathematical and Physical Sciences

Career Summary

Biography

Matthew is a research associate and support officer in the Centre for Organic Electronics (COE), which comprises one half of the Materials Node of the Australian National Fabrication Facility (ANFF). He completed his PhD candidacy at the University of Newcastle, for which he received the Royal Society’s Jak Kelly Prize for Excellence in Postgraduate Physics. His PhD thesis, entitled “Imaging with Atoms: Aspect of Scanning Helium Microscopy” was on the design and development of a new type of microscope utilising neutral helium atoms as the probe particle. Indeed, the helium microscopy team’s work on in this field was showcased in London at the Royal Society’s Summer Science Exhibition in 2019.

In addition to the work on neutral helium microscopy, Matthew has been involved extensively in the field of organic electronics – primarily, solar cells printed from electrically conductive plastics. Along with fundamental research on these exciting new materials (using synchrotron techniques such as x-ray microscopy and x-ray spectroscopy) he is also involved in the major upscaling of this technology. He played a major role in all of the large installations of printed solar in Australia, such as the recent solar arbour installation in Lane Cove, Sydney.

Most recently he was a key member of the team that developed a roll-to-roll printer capable of mass producing face shields for medical staff battling COVID-19. More than a thousand of these shields were produced and sent out for use in the community.


Qualifications

  • Doctor of Philosophy, University of Newcastle

Keywords

  • apparatus design
  • fabrication
  • organic electronics
  • scanning helium microscopy
  • x-ray microscopy

Languages

  • English (Mother)

Fields of Research

Code Description Percentage
020402 Condensed Matter Imaging 33
100702 Molecular and Organic Electronics 33
020401 Condensed Matter Characterisation Technique Development 34

Professional Experience

UON Appointment

Title Organisation / Department

Academic appointment

Dates Title Organisation / Department
1/4/2015 - 30/6/2020 Research Associate/Support Officer University of Newcastle/Australian National Fabrication Facility
Australia

Professional appointment

Dates Title Organisation / Department
2/2/2009 - 4/5/2015 Technical Assistant John Hunter Hospital
Australia

Teaching appointment

Dates Title Organisation / Department
4/2/2008 - 6/7/2009 Laboratory Demonstrator Faculty of Science and Information Technology The University of Newcastle
Australia
7/3/2005 - 23/11/2007 Mathematics Tutor Self Employed
Australia

Awards

Award

Year Award
2016 Jak Kelly Prize for Excellence in Postgraduate Physics
The Royal Society of New South Wales
2009 Faculty Medal
Faculty of Science and Information Technology The University of Newcastle
2009 University Medal
Faculty of Science and Information Technology The University of Newcastle
2008 George Arkla Harle Memorial Prize in Physics
Faculty of Science and Information Technology The University of Newcastle
2006 Apollo Commemorative Prize in Physics
Faculty of Science and Information Technology The University of Newcastle

Recipient

Year Award
2019 Travel funding to present at the SAMS-4 conference in Madrid, Spain
Faculty of Science and Information Technology The University of Newcastle
2011 Travel Fellowship to the University of Cambridge, UK
Australian Nanotechnology Network

Recognition

Year Award
2019 PhD work showcased at the Royal Society Summer Science Exhibition in London, UK
The Royal Society

Invitations

Speaker

Year Title / Rationale
2019 SAMS-4

Prestigious works / other achievements

Year Commenced Year Finished Prestigious work / other achievement Role
2019 2019 Member of the design team behind the Scanning Helium Microscope Royal Society Summer Science Exhibition - Seeing with Atoms Creator
2019 2020 Member of the design and construction team behind the Lane Cove Solar Arbour The Canopy, Lane Cove Constructor
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Publications

For publications that are currently unpublished or in-press, details are shown in italics.


Journal article (28 outputs)

Year Citation Altmetrics Link
2020 Myles TA, Fahy A, Martens J, Dastoor PC, Barr MG, 'Fast neutral atom microscopy: An optimisation framework for stagnation detectors', Measurement: Journal of the International Measurement Confederation, 151 (2020) [C1]
DOI 10.1016/j.measurement.2019.107263
Co-authors Adam Fahy, Paul Dastoor
2019 Marks M, Holmes NP, Sharma A, Pan X, Chowdhury R, Barr MG, et al., 'Building intermixed donor-acceptor architectures for water-processable organic photovoltaics', Physical Chemistry Chemical Physics, 21 5705-5715 (2019) [C1]
DOI 10.1039/c8cp07137c
Citations Scopus - 6Web of Science - 6
Co-authors Warwick Belcher, Krishna Feron, Paul Dastoor, Matthew Griffith
2019 Myles TA, Eder SD, Barr MG, Fahy A, Martens J, Dastoor PC, 'Taxonomy through the lens of neutral helium microscopy', SCIENTIFIC REPORTS, 9 (2019) [C1]
DOI 10.1038/s41598-018-36373-5
Citations Scopus - 2Web of Science - 2
Co-authors Adam Fahy, Paul Dastoor
2019 Holmes NP, Munday H, Barr MG, Thomsen L, Marcus MA, Kilcoyne ALD, et al., 'Unravelling donor-acceptor film morphology formation for environmentally-friendly OPV ink formulations', GREEN CHEMISTRY, 21 5090-5103 (2019) [C1]
DOI 10.1039/c9gc02288k
Citations Scopus - 3Web of Science - 3
Co-authors Adam Fahy, Paul Dastoor
2018 Almyahi F, Andersen TR, Cooling N, Holmes NP, Fahy A, Barr MG, et al., 'Optimization, characterization and upscaling of aqueous solar nanoparticle inks for organic photovoltaics using low-cost donor: acceptor blend', ORGANIC ELECTRONICS, 52 71-78 (2018) [C1]
DOI 10.1016/j.orgel.2017.10.008
Citations Scopus - 3Web of Science - 3
Co-authors Warwick Belcher, Adam Fahy, Paul Dastoor
2018 Pan X, Sharma A, Gedefaw D, Kroon R, Diaz de Zerio A, Holmes NP, et al., 'Environmentally friendly preparation of nanoparticles for organic photovoltaics', Organic Electronics: physics, materials, applications, 59 432-440 (2018) [C1]
DOI 10.1016/j.orgel.2018.05.040
Citations Scopus - 9Web of Science - 9
Co-authors Warwick Belcher, Paul Dastoor, Xiaojing Zhou, Adam Fahy
2018 Fahy A, Eder SD, Barr M, Martens J, Myles TA, Dastoor PC, 'Image formation in the scanning helium microscope.', Ultramicroscopy, 192 7-13 (2018) [C1]
DOI 10.1016/j.ultramic.2018.05.004
Citations Scopus - 4Web of Science - 4
Co-authors Adam Fahy, Paul Dastoor
2018 Holmes NP, Marks M, Cave JM, Feron K, Barr MG, Fahy A, et al., 'Engineering Two-Phase and Three-Phase Microstructures from Water-Based Dispersions of Nanoparticles for Eco-Friendly Polymer Solar Cell Applications', Chemistry of Materials, 30 6521-6531 (2018) [C1]
DOI 10.1021/acs.chemmater.8b03222
Citations Scopus - 10Web of Science - 10
Co-authors Xiaojing Zhou, Warwick Belcher, Adam Fahy, Paul Dastoor, Krishna Feron
2017 Allen TG, Bullock J, Zheng P, Vaughan B, Barr M, Wan Y, et al., 'Calcium contacts to n-type crystalline silicon solar cells', PROGRESS IN PHOTOVOLTAICS, 25 636-644 (2017) [C1]
DOI 10.1002/pip.2838
Citations Scopus - 30Web of Science - 30
2017 Myles T, Martens J, Fahy A, Barr M, Dastoor PC, 'Atom microscopy - Imaging with a deft touch', Australian Physics, 54 206-213 (2017)

The destruction of fragile samples is an inevitable side-effect of many current microscopy techniques. A new type of instrument, the scanning helium microscope or SHeM, utilises n... [more]

The destruction of fragile samples is an inevitable side-effect of many current microscopy techniques. A new type of instrument, the scanning helium microscope or SHeM, utilises neutral helium as the probe particle to provide an alternative solution for such materials. The helium atoms are inert, neutral, and have an energy several orders of magnitude lower than that of photons or electrons at comparable wavelengths. As a result, the technique is totally surface sensitive and completely non-destructive, making it ideal in instances where exposure to high energy beams would either limit experimental time, or the reliability of the results.

Co-authors Paul Dastoor, Adam Fahy
2016 Holmes NP, Marks M, Kumar P, Kroon R, Barr MG, Nicolaidis N, et al., 'Nano-pathways: Bridging the divide between water-processable nanoparticulate and bulk heterojunction organic photovoltaics', Nano Energy, 19 495-510 (2016) [C1]

© 2015 Elsevier Ltd. Here we report the application of a conjugated copolymer based on thiophene and quinoxaline units, namely poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-... [more]

© 2015 Elsevier Ltd. Here we report the application of a conjugated copolymer based on thiophene and quinoxaline units, namely poly[2,3-bis-(3-octyloxyphenyl)quinoxaline-5,8-diyl-alt-thiophene-2,5-diyl] (TQ1), to nanoparticle organic photovoltaics (NP-OPVs). TQ1 exhibits more desirable material properties for NP-OPV fabrication and operation, particularly a high glass transition temperature (Tg) and amorphous nature, compared to the commonly applied semicrystalline polymer poly(3-hexylthiophene) (P3HT). This study reports the optimisation of TQ1:PC71BM (phenyl C71 butyric acid methyl ester) NP-OPV device performance by the application of mild thermal annealing treatments in the range of the Tg (sub-Tg and post-Tg), both in the active layer drying stage and post-cathode deposition annealing stage of device fabrication, and an in-depth study of the effect of these treatments on nanoparticle film morphology. In addition, we report a type of morphological evolution in nanoparticle films for OPV active layers that has not previously been observed, that of PC71BM nano-pathway formation between dispersed PC71BM-rich nanoparticle cores, which have the benefit of making the bulk film more conducive to charge percolation and extraction.

DOI 10.1016/j.nanoen.2015.11.021
Citations Scopus - 43Web of Science - 44
Co-authors Krishna Feron, Paul Dastoor, Adam Fahy, Warwick Belcher, Xiaojing Zhou
2016 Barr M, Fahy A, Martens J, Jardine AP, Ward DJ, Ellis J, et al., 'Unlocking new contrast in a scanning helium microscope', Nature Communications, 7 (2016) [C1]

Delicate structures (such as biological samples, organic films for polymer electronics and adsorbate layers) suffer degradation under the energetic probes of traditional microscop... [more]

Delicate structures (such as biological samples, organic films for polymer electronics and adsorbate layers) suffer degradation under the energetic probes of traditional microscopies. Furthermore, the charged nature of these probes presents difficulties when imaging with electric or magnetic fields, or for insulating materials where the addition of a conductive coating is not desirable. Scanning helium microscopy is able to image such structures completely non-destructively by taking advantage of a neutral helium beam as a chemically, electrically and magnetically inert probe of the sample surface. Here we present scanning helium micrographs demonstrating image contrast arising from a range of mechanisms including, for the first time, chemical contrast observed from a series of metal-semiconductor interfaces. The ability of scanning helium microscopy to distinguish between materials without the risk of damage makes it ideal for investigating a wide range of systems.

DOI 10.1038/ncomms10189
Citations Scopus - 26Web of Science - 24
Co-authors Paul Dastoor, Adam Fahy
2016 Barr M, Fahy A, Martens J, Dastoor PC, 'A simple counter-flow cooling system for a supersonic free-jet beam source assembly', REVIEW OF SCIENTIFIC INSTRUMENTS, 87 (2016) [C1]
DOI 10.1063/1.4948391
Citations Scopus - 2Web of Science - 2
Co-authors Paul Dastoor, Adam Fahy
2015 Dam HF, Holmes NP, Andersen TR, Larsen-Olsen TT, Barr M, Kilcoyne ALD, et al., 'The effect of mesomorphology upon the performance of nanoparticulate organic photovoltaic devices', Solar Energy Materials and Solar Cells, 138 102-108 (2015) [C1]

Crown Copyright © 2015 Published by Elsevier B.V. All rights reserved. Abstract Scanning transmission X-ray microscopy (STXM) compositional mapping has been used to probe the meso... [more]

Crown Copyright © 2015 Published by Elsevier B.V. All rights reserved. Abstract Scanning transmission X-ray microscopy (STXM) compositional mapping has been used to probe the mesomorphology of nanoparticles (NPs) synthesized from two very different polymer:fullerene blends: poly(3-hexylthiophene) (P3HT): phenyl-C61-butyric acid methyl ester (PCBM) and poly[4,8-bis(2-ethylhexyloxy)benzo(1,2-b:4,5-b')dithiophene-alt-5, 6-bis(octyloxy)-4,7-di(thiophen-2-yl)(2,1,3-benzothiadiazole)-5,5'-diyl] (PSBTBT): PCBM. The STXM data shows that both blends form core-shell NP structures with similar shell compositions, but with different polymer:fullerene ratios in the core regions. P3HT:PCBM and PSBTBT:PCBM NP organic photovoltaic (OPV) devices have been fabricated and exhibit similar device efficiencies, despite the PSBTBT being a much higher performing low band gap material. By comparing the measured NP shell and core compositions with the optimized bulk hetero-junction (BHJ) compositions, we show that the relatively higher performance of the P3HT:PCBM NP device arises from the fact that its shell composition is much closer to the optimal BHJ value than that of the PSBTBT:PCBM NP device.

DOI 10.1016/j.solmat.2015.02.028
Citations Scopus - 11Web of Science - 11
Co-authors Warwick Belcher, Xiaojing Zhou, Paul Dastoor
2015 Farman N, Barr M, Philp A, Lawry M, Belcher W, Dastoor P, 'Model & metaphor: A case study of a new methodology for art/science residencies', Leonardo, 48 419-423 (2015) [C1]

© 2015 ISAST. Traditional artist-in-science-residency schemes have tended to focus on artists using scientific tools and technology as a medium for their art. What kind and qualit... [more]

© 2015 ISAST. Traditional artist-in-science-residency schemes have tended to focus on artists using scientific tools and technology as a medium for their art. What kind and quality of work might occur, however, between scientists working on cutting-edge solar energy research and a visual artist (a sculptor) when they are integrated in a truly collaborative environment? Is it good for the art? Is it good for the science? The authors describe a new methodology for art-science interactions whereby they have integrated arts practice within a scientific environment. A critical aspect of the methodology for the residency was the development of an interaction framework that ensured that both artist and scientist had equal voice in discussions involving the art and science of the project within an environment of mutual respect. The integration led to the development of outcomes that would not have occurred otherwise.

DOI 10.1162/LEON_a_01073
Co-authors Miranda Lawry, Paul Dastoor, Warwick Belcher
2015 Holmes NP, Nicolaidis N, Feron K, Barr M, Burke KB, Al-Mudhaffer M, et al., 'Probing the origin of photocurrent in nanoparticulate organic photovoltaics', SOLAR ENERGY MATERIALS AND SOLAR CELLS, 140 412-421 (2015) [C1]
DOI 10.1016/j.solmat.2015.04.044
Citations Scopus - 25Web of Science - 22
Co-authors Xiaojing Zhou, Warwick Belcher, Paul Dastoor, Krishna Feron
2015 Fahy A, Barr M, Martens J, Dastoor PC, 'A highly contrasting scanning helium microscope', Review of Scientific Instruments, 86 (2015) [C1]

© 2015 AIP Publishing LLC. We present a scanning helium microscope equipped to make use of the unique contrast mechanisms, surface sensitivity, and zero damage imaging the techniq... [more]

© 2015 AIP Publishing LLC. We present a scanning helium microscope equipped to make use of the unique contrast mechanisms, surface sensitivity, and zero damage imaging the technique affords. The new design delivers an order of magnitude increase in the available helium signal, yielding a higher contrast and signal-to-noise ratio. These improvements allow the microscope to produce high quality, intuitive images of samples using topological contrast, while setting the stage for investigations into further contrast mechanisms.

DOI 10.1063/1.4907539
Citations Scopus - 19Web of Science - 15
Co-authors Paul Dastoor, Adam Fahy
2015 Hansson R, Ericsson LKE, Holmes NP, Rysz J, Opitz A, Campoy-Quiles M, et al., 'Vertical and lateral morphology effects on solar cell performance for a thiophene-quinoxaline copolymer: PC70BM blend', JOURNAL OF MATERIALS CHEMISTRY A, 3 6970-6979 (2015) [C1]
DOI 10.1039/c5ta00683j
Citations Scopus - 32Web of Science - 32
Co-authors Paul Dastoor, Xiaojing Zhou
2015 Holmes NP, Burke KB, Sista P, Barr M, Magurudeniya HD, Stefan MC, et al., 'Erratum: Corrigendum to nano-domain behaviour in P3HT:PCBM nanoparticles, relating material properties to morphological changes (Solar Energy Materials & Solar Cells (2013) 117 (437-445))', Solar Energy Materials and Solar Cells, 143 226-226 (2015) [O1]
DOI 10.1016/j.solmat.2015.07.005
Co-authors Xiaojing Zhou, Warwick Belcher, Paul Dastoor
2014 Barr M, Fahy A, Jardine A, Ellis J, Ward D, MacLaren DA, et al., 'A design for a pinhole scanning helium microscope', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 340 76-80 (2014) [C1]
DOI 10.1016/j.nimb.2014.06.028
Citations Scopus - 17Web of Science - 14
Co-authors Adam Fahy, Paul Dastoor
2014 Martens J, Fahy A, Barr M, Jardine A, Allison W, Dastoor PC, 'Development of a permanent magnet alternative for a solenoidal ion source', Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 340 85-89 (2014) [C1]
DOI 10.1016/j.nimb.2014.07.033
Citations Scopus - 4Web of Science - 4
Co-authors Adam Fahy, Paul Dastoor
2013 Holmes NP, Burke KB, Sista P, Barr M, Magurudeniya HD, Stefan MC, et al., 'Nano-domain behaviour in P3HT:PCBM nanoparticles, relating material properties to morphological changes', Solar Energy Materials and Solar Cells, 117 437-445 (2013) [C1]
DOI 10.1016/j.solmat.2013.06.003
Citations Scopus - 42Web of Science - 42
Co-authors Warwick Belcher, Xiaojing Zhou, Paul Dastoor
2013 Ulum S, Holmes N, Barr M, Kilcoyne ALD, Bin Gong B, Zhou X, et al., 'The role of miscibility in polymer:fullerene nanoparticulate organic photovoltaic devices', NANO ENERGY, 2 897-905 (2013) [C1]
DOI 10.1016/j.nanoen.2013.03.009
Citations Scopus - 56Web of Science - 55
Co-authors Warwick Belcher, Xiaojing Zhou, Paul Dastoor
2012 Shearer CJ, Fahy AJ, Barr MG, Moore KE, Dastoor PC, Shapter JG, 'Field emission from single-, double-, and multi-walled carbon nanotubes chemically attached to silicon', Journal of Applied Physics, 111 (2012) [C1]
DOI 10.1063/1.3687363
Citations Scopus - 7Web of Science - 6
Co-authors Adam Fahy, Paul Dastoor
2012 Barr MG, O'Donnell KM, Fahy AJ, Allison W, Dastoor PC, 'A desktop supersonic free-jet beam source for a scanning helium microscope (SHeM)', Measurement Science & Technology, 23 1-7 (2012) [C1]
Citations Scopus - 8Web of Science - 7
Co-authors Adam Fahy, Paul Dastoor
2012 O'Donnell K, Fahy AJ, Barr MG, Allison W, Dastoor PC, 'Field ionization detection of helium using a planar array of carbon nanotubes', Physical Review B, 85 (2012) [C1]
DOI 10.1103/PhysRevB.85.113404
Citations Scopus - 11Web of Science - 8
Co-authors Adam Fahy, Paul Dastoor
2012 Shearer CJ, Fahy AJ, Barr MG, Dastoor PC, Shapter JG, 'Improved field emission stability from single-walled carbon nanotubes chemically attached to silicon', Nanoscale Research Letters, 7 1-4 (2012) [C1]
Citations Scopus - 5Web of Science - 5
Co-authors Adam Fahy, Paul Dastoor
2011 Fahy AJ, O'Donnell K, Barr MG, Zhou X, Allison W, Dastoor PC, 'Development of an improved field ionization detector incorporating a secondary electron stage', Measurement Science and Technology, 22 (2011) [C1]
DOI 10.1088/0957-0233/22/11/115902
Citations Scopus - 4Web of Science - 4
Co-authors Paul Dastoor, Adam Fahy, Xiaojing Zhou
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Conference (2 outputs)

Year Citation Altmetrics Link
2017 Allen TG, Zheng P, Vaughan B, Barr M, Wan Y, Samundsett C, et al., 'Low resistance TiO

© 2017 IEEE. It has recently been shown that low resistance Ohmic contact to lightly doped n-type crystalline silicon (c-Si) is possible by direct metallization via a thin layer ... [more]

© 2017 IEEE. It has recently been shown that low resistance Ohmic contact to lightly doped n-type crystalline silicon (c-Si) is possible by direct metallization via a thin layer of the low work function metal calcium (f ~2.9 eV) and an overlying aluminium capping layer. Using this approach upper limit contact resistivities of < 2 mOcm 2 can be realised on undiffused n-type surfaces. However, recombination at the Ca / Si interface limits the application of the Ca contact to very low contact fractions which leads to non-negligible resistive losses and an increase in device fabrication complexity. Here we show that the low resistance Ohmic contact of the Ca / Al structure is retained after the addition of a TiO 2 interlayer, leading the way to the development of a passivated contact device utilizing TiO 2 and Ca.

DOI 10.1109/PVSC.2017.8366542
2016 Allen TG, Zheng P, Vaughan B, Barr M, Wan Y, Samundsett C, et al., 'Low resistance TiO
DOI 10.1109/PVSC.2016.7749584
Citations Scopus - 3Web of Science - 2
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Grants and Funding

Summary

Number of grants 3
Total funding $320,826

Click on a grant title below to expand the full details for that specific grant.


20202 grants / $314,426

Australian National Fabrication Facility – Materials Node$308,026

Funding body: NSW Department of Industry

Funding body NSW Department of Industry
Project Team Professor Paul Dastoor, Doctor Matthew Barr, Doctor Adam Fahy, Doctor Benjamin Vaughan
Scheme Research Attraction and Acceleration Program
Role Investigator
Funding Start 2020
Funding Finish 2020
GNo G2001074
Type Of Funding Scheme excluded from IGS
Category EXCL
UON Y

Green Materials for Printed Electronics$6,400

Funding body: Australian Synchrotron

Funding body Australian Synchrotron
Project Team Doctor Natalie Holmes, Professor Paul Dastoor, Doctor Matthew Barr, Doctor Xiaojing Zhou, Doctor Adam Fahy
Scheme International Synchrotron Access Program
Role Investigator
Funding Start 2020
Funding Finish 2020
GNo G2000230
Type Of Funding C1700 - Aust Competitive - Other
Category 1700
UON Y

20191 grants / $6,400

Green Materials for Printed Electronics$6,400

Funding body: Australian Synchrotron

Funding body Australian Synchrotron
Project Team Doctor Natalie Holmes, Professor Paul Dastoor, Doctor Matthew Barr, Mr Riku Chowdhury, Doctor Adam Fahy, Doctor Xiaojing Zhou, Doctor Matthew Barr
Scheme International Synchrotron Access Program
Role Investigator
Funding Start 2019
Funding Finish 2019
GNo G1901051
Type Of Funding C1700 - Aust Competitive - Other
Category 1700
UON Y
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Research Supervision

Number of supervisions

Completed0
Current2

Current Supervision

Commenced Level of Study Research Title Program Supervisor Type
2020 PhD Effects of Temperature in Neutral Helium Microscopy PhD (Physics), Faculty of Science, The University of Newcastle Co-Supervisor
2017 PhD The Contrast Mechanism of Scanning Helium Microscopy PhD (Physics), Faculty of Science, The University of Newcastle Co-Supervisor
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Dr Matthew Barr

Position

Research Associate
ANFF
School of Mathematical and Physical Sciences
Faculty of Science

Contact Details

Email matthew.barr@newcastle.edu.au
Mobile 0402071915

Office

Room P125
Building Physics Building
Location Callaghan
University Drive
Callaghan, NSW 2308
Australia
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