Dr Paul Edwards

Senior Research Fellow

Physics

Personal statement

I am a Senior Research Fellow in the Department of Physics, where I have worked in the Semiconductor Spectroscopy and Devices research group since 2000. Prior to this, I studied at Imperial College London, Albert Ludwigs Universität Freiburg and Durham University. My PhD and post-doctoral work at Durham involved the use of scanning electron and optical beam techniques to study thin-film CdTe solar cells. I now apply similar techniques to characterise materials, nanostructures and devices made from group III nitride compounds.

Researcher ID: C-1594-2009

ORCID ID: 0000-0001-7671-7698

| e: paul.edwards@strath.ac.uk | t: 0141 548 4369/3488/7917 | u: http://ssd.phys.strath.ac.uk/ |

Publications

High figure-of-merit gallium oxide UV photodetector on silicon by MBE : a path toward monolithic integration
Mukhopadhyay Partha, Hatipoglu Isa, Sakthivel Tamil Selvan, Hunter Daniel A, Gunasekar Naresh Kumar, Edwards Paul R, Martin Robert W, Seal Sudipta, Schoenfeld Winston Vaughan
Advanced Photonics Research Vol 2 (2021)
https://doi.org/10.1002/adpr.202000067
Nanoscale heterogeneity in CsPbBr3 and CsPbBr3:KI perovskite films revealed by cathodoluminescence hyperspectral imaging
Jagadamma Lethy Krishnan, Edwards Paul R, Martin Robert W, Ruseckas Arvydas, Samuel Ifor D W
ACS Applied Energy Materials Vol 4, pp. 2707-2715 (2021)
https://doi.org/10.1021/acsaem.0c03154
Progress in atomic layer deposited α-Ga2O3 materials and solar-blind detectors
Massabuau F C-P, Roberts J W, Nicol D, Edwards P R, McLelland M, Dallas G L, Hunter D A, Nicolson E A, Jarman J C, Kovács A, Martin R W, Oliver R A, Chalker P R
Proceedings Volume 11687, Oxide-based Materials and Devices Society of Photo-optical Instrumentation Engineers Oxide-based Materials and Devices XII (2021)
https://doi.org/10.1117/12.2588729
Origin of red emission in β-Ga2O3 analysed by cathodoluminescence and photoluminescence spectroscopy
Naresh-Kumar Gunasekar, Macintyre Hazel, Shanthi Shanthi, Edwards Paul R, Martin Robert W, Daivasigamani Krishnamurthy, Sasaki Kohei, Kuramata Akito
Physica Status Solidi B Vol 258 (2021)
https://doi.org/10.1002/pssb.202000465
A systematic comparison of polar and semipolar Si-doped AlGaN alloys with high AlN content
Spasevski Lucia, Kusch Gunnar, Pampili Pietro, Zubialevich Vitaly Z, Dinh Duc V, Bruckbauer Jochen, Edwards Paul R, Parbrook Peter J, Martin Robert W
Journal of Physics D: Applied Physics Vol 54 (2021)
https://doi.org/10.1088/1361-6463/abbc95
Effects of irradiation of ZnO/CdS/Cu2ZnSnSe4/Mo/glass solar cells by 10 MeV electrons on photoluminescence spectra
Sulimov M A, Sarychev M N, Yakushev M V, Márquez-Prieto J, Forbes I, Ivanov V Yu, Edwards P R, Mudryi A V, Krustok J, Martin R W
Materials Science in Semiconductor Processing Vol 121 (2021)
https://doi.org/10.1016/j.mssp.2020.105301

More publications

Research interests

My research is focussed on the use of spectroscopic and microscopic methods in the analysis of semiconductors. The main materials of current interest to me are those based on the group III nitride quaternary system, AlxGayIn(1-x-y)N, and in particular nano-scale structures based on them. These have applications in many different areas, including solid-state lighting, data storage, communications and water purification. The techniques I use to study these materials include photoluminescence and electroluminescence spectroscopy, as well multiple modes of scanning electron microscopy (such as cathodoluminescence, electron beam-induced current and X-ray microanalysis). I am also interested in the application of multivariate statistical analysis techniques in the processing of the multidimensional data that these experimental methods yield.

Professional activities

Micromachines (Journal)
Guest editor
2020
Microscopy & Microanalysis 2018
Invited speaker
9/8/2018
PDI Topical Workshop on Cathodoluminescence of Semiconductor Nanostructures
Participant
16/4/2018
UK Nitrides Consortium Winter Conference 2018
Speaker
10/1/2018
12th International Conference on Nitride Semiconductors (ICNS-12)
Participant
23/7/2017
Microscience Microscopy Congress (MMC2015)
Invited speaker
2/7/2015

More professional activities

Projects

Monolithic on-chip integration of electronics & photonics using III-nitrides for telecoms
Martin, Robert (Principal Investigator) Edwards, Paul (Co-investigator)
01-Jan-2020 - 31-Jan-2024
PROBING QUANTUM STATES WITH SILICON CARBIDE NANOELECTRONICS | Qaasim, Abubakr
Rossi, Alessandro (Principal Investigator) Edwards, Paul (Co-investigator) Qaasim, Abubakr (Research Co-investigator)
01-Jan-2020 - 01-Jan-2023
Doctoral Training Partnership 2018-19 University of Strathclyde | Qaasim, Abubakr
Rossi, Alessandro (Principal Investigator) Edwards, Paul (Co-investigator) Qaasim, Abubakr (Research Co-investigator)
01-Jan-2020 - 01-Jan-2023
Doctoral Training Partnership 2018-19 University of Strathclyde | Hunter, Daniel
Martin, Robert (Principal Investigator) Edwards, Paul (Co-investigator) Hunter, Daniel (Research Co-investigator)
01-Jan-2019 - 01-Jan-2023
Doctoral Training Partnership 2018-19 University of Strathclyde | Starosta, Bohdan
Hourahine, Ben (Principal Investigator) Edwards, Paul (Co-investigator) Starosta, Bohdan (Research Co-investigator)
01-Jan-2018 - 01-Jan-2022
Light-controlled manufacturing of semiconductor structures: a platform for next generation processing of photonic devices
Skabara, Peter (Principal Investigator) Dawson, Martin (Co-investigator) Edwards, Paul (Co-investigator) Martin, Robert (Co-investigator) Watson, Ian (Co-investigator)
"This Platform Grant (PG) will apply our internationally-leading expertise in structured illumination and hybrid inorganic/organic semiconductor optoelectronic devices to create new opportunities in the rapidly developing field of light-controlled manufacturing. Structured illumination fields can in principle be obtained from both inorganic (GaN) and organic LEDs, implemented on a macroscale via relay optics, or demagnified to a microscale. Novel manufacturing with photopolymerisable materials can firstly involve use of structured illumination as a novel means to control motorised stages. This technique can be combined with pattern-programmable UV excitation for mask-free photolithographic patterning, continuous photo-curing over larger fields, localised photochemical deposition, or other forms of photo-labile assembly. Process variants can also be envisaged in which arbitrarily positioned fluorescent objects or markers are 'hunted', and then subject to beam excitation for photocuring or targeted photoexcitation. This method could be used, for example, to immobilise individual colloidal quantum dots for use as emitters in quantum technology applications. Multifunctional devices with sensing ability, such as organic lasers for explosives detection, represent another excellent example of automated devices operating under remote conditions. Further examples of the envisaged uses of this technology include:

[1] LED microdisplay asset tags for management of high-value objects (artworks, nuclear fuel containers).
[2] Passive asset tags containing unique micro-patterns of fluorescent objects (eg. colloidal quantum dots, organic macromolecules) for higher-volume, anti-counterfeiting applications.
[3] Customisable continuous-flow micro-reactors for fine chemical manufacturing.
[4] Energy harvesting micro-modules to power other autonomous microsystems, where we will focus on organic PV and ambient-radiation (RF) approaches."
01-Jan-2017 - 30-Jan-2021

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