Projects per year
Personal profile
Research interests
I currently work in the area of semiconductor technology, predominantly in the area of group III-V optoelectronics. A major focus of my work has been the creation of optoelectronic devices based on the group III-nitride wide bandgap semiconductor materials.
I have experience in MOVPE semiconductor growth, alongside micro and nanofabrication for the creation of light-emitting and laser diodes. Recently, I have been exploring semiconductor crystal growth on three-dimensional, patterned substrates; understanding how the substrate affects the growth process. This has led to an extensive study of core-shell light-emitting diodes; primarily emitting in the visible regime, but also more recently in the ultraviolet.
As a result of needing large area nanopatterning for creating growth templates, I also have expertise in nanoimprint lithography (NIL), electron beam lithography (EBL) and displacement Talbot lithography (DTL).
Expertise related to UN Sustainable Development Goals
In 2015, UN member states agreed to 17 global Sustainable Development Goals (SDGs) to end poverty, protect the planet and ensure prosperity for all. This person’s work contributes towards the following SDG(s):
Education/Academic qualification
Doctor of Philosophy, University of Oxford
Award Date: 1 Jun 2001
Physics, Master of Physics, University of Oxford
Award Date: 1 Jun 1997
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Recent external collaboration on country/territory level. Dive into details by clicking on the dots or
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Manufacturing of Large-Area InP on nano-V-grooved CMOS compatible Si
Shields, P. & Chausse, P.
Engineering and Physical Sciences Research Council
24/04/20 → 30/04/21
Project: Research council
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Manufacturing of Nano-Engineered III-N Semiconductors
Shields, P., Allsopp, D. & Wang, W.
Engineering and Physical Sciences Research Council
1/05/15 → 30/09/21
Project: Research council
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Manufacturing of Nano-Engineered III-N Semiconductors - Equipment
Shields, P. & Allsopp, D.
Engineering and Physical Sciences Research Council
1/02/15 → 31/01/20
Project: Research council
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INREP - Towards Indium free TCOs
Allsopp, D., Morgan, B., Shields, P. & Walsh, A.
1/02/15 → 31/01/18
Project: EU Commission
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Non-destructive imaging of residual strains in GaN and their effect on optical and electrical properties using correlative light-electron microscopy
Naresh-Kumar, G., Edwards, P. R., Batten, T., Nouf-Allehiani, M., Vilalta-Clemente, A., Wilkinson, A. J., Le Boulbar, E., Shields, P. A., Starosta, B., Hourahine, B., Martin, R. W. & Trager-Cowan, C., 21 Feb 2022, In: Journal of Applied Physics. 131, 7, 075303.Research output: Contribution to journal › Article › peer-review
Open Access -
Ultra-thin GaAs solar cells with nanophotonic metal-dielectric diffraction gratings fabricated with displacement Talbot lithography
Sayre, L., Camarillo Abad, E., Pearce, P., Chausse, P., Coulon, P. M., Shields, P., Johnson, A. & Hirst, L. C., 31 Jan 2022, In: Progress in Photovoltaics: Research and Applications. 30, 1, p. 96-108 13 p.Research output: Contribution to journal › Article › peer-review
Open Access -
Employing Cathodoluminescence for Nanothermometry and Thermal Transport Measurements in Semiconductor Nanowires
Mauser, K. W., Solà-Garcia, M., Liebtrau, M., Damilano, B., Coulon, P. M., Vézian, S., Shields, P. A., Meuret, S. & Polman, A., 22 Jun 2021, In: ACS Nano. 15, 7, p. 11385–11395Research output: Contribution to journal › Article › peer-review
Open Access -
Intrinsic Layer Zn Doping Diffusion Control and Bandwidth Modulation of InP/InGaAs/InP Photodiode
Liu, H., Wang, X., Niu, P., Shields, P., Zhang, Z., Li, X., Liu, C. & Wang, D., 15 May 2021, In: IEEE Photonics Technology Letters. 33, 10, p. 503-506 4 p., 9399096.Research output: Contribution to journal › Article › peer-review
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Point Defects in InGaN/GaN Core-Shell Nanorods: Role of the Regrowth Interface
Loeto, K., Kusch, G., Coulon, P. M., Fairclough, S. M., Boulbar, E. L., Girgel, I., Shields, P. A. & Oliver, R. A., 8 Mar 2021, In: Nano Express. 2, 1, 014005.Research output: Contribution to journal › Article › peer-review
Open Access
Datasets
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Dataset for "Understanding the resolution limit of Displacement Talbot Lithography"
Chausse, P. (Creator), Le Boulbar, E. (Creator), Lis, S. (Creator) & Shields, P. (Creator), University of Bath, 20 Feb 2019
DOI: 10.15125/BATH-00570
Dataset
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Dataset for 'Design and fabrication of enhanced lateral growth for dislocation reduction and strain management in GaN using nanodashes'
Shields, P. (Creator), Le Boulbar, E. (Creator), Priesol, J. (Creator), Šatka, A. (Creator), Allehiani, N. (Creator), Naresh-Kumar, G. (Creator), Fox, S. (Creator), Trager-Cowan, C. (Creator) & Allsopp, D. (Supervisor), University of Bath, Mar 2017
DOI: 10.15125/BATH-00257
Dataset
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Dataset for Optical characterization of magnesium incorporation in p-GaN layers for core-shell nanorods
Girgel, I. (Creator), Šatka, A. (Creator), Priesol, J. (Creator), Coulon, P. (Creator), Le Boulbar, E. (Creator), Batten, T. (Creator), Allsopp, D. (Creator) & Shields, P. (Creator), University of Bath, 27 Mar 2018
DOI: 10.15125/BATH-00207
Dataset
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Dataset for "Spatial periodicities inside the Talbot effect: understanding, control and applications for lithography"
Chausse, P. (Creator) & Shields, P. (Supervisor), University of Bath, 16 Aug 2021
DOI: 10.15125/BATH-01046
Dataset
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Dataset for Structural and optical emission uniformity of m-plane InGaN single quantum wells in core-shell nanorods
Le Boulbar, E. (Creator), Shields, P. (Researcher), Allsopp, D. (Researcher), Martin, R. W. (Researcher), Edwards, P. R. (Researcher), Cherns, D. (Researcher), Hosseini-Vajargah, S. (Creator), Edwards, P. R. (Creator), Girgel, I. (Creator), Coulon, P. (Creator), Cherns, D. (Creator), Martin, R. W. (Creator), Humphreys, C. (Creator), Bowen, C. (Creator), Allsopp, D. (Creator) & Shields, P. (Creator), University of Bath, 2015
DOI: 10.15125/BATH-00150
Dataset