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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).

Education/Academic qualification

Doctor of Philosophy, University of Oxford

Physics, Master of Physics, University of Oxford

Fingerprint Dive into the research topics where Philip Shields is active. These topic labels come from the works of this person. Together they form a unique fingerprint.

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Projects 2010 2021

gallium nitrides
light emitting diodes

INREP - Towards Indium free TCOs

Allsopp, D. & Shields, P.

EU - Horizon 2020


Project: EU Commission

Touch screens
Solar cells

Nanoscale Sensors for Healthcare and the Environment (NANOSENSE)

Shields, P. & Allsopp, D.


Project: Research-related funding

High Intensity Light Emitting Diodes (LEDs) for Advanced Projection Systems

Allsopp, D. & Shields, P.

Innovate UK


Project: Central government, health and local authorities

Research Output 1999 2019

Displacement Talbot Lithography for nano-engineering of III-nitride materials

Coulon, P-M., Damilano, B., Alloing, B., Chausse, P., Walde, S., Enslin, J., Armstrong, R., Vézian, S., Hagedorn, S., Wernicke, T., Zúñiga-Pérez, J., Weyers, M., Kneissl, M. & Shields, P., 23 Aug 2019, (Accepted/In press) In : Microsystems & Nanoengineering.

Research output: Contribution to journalArticle

Top-down fabrication of GaN nano-laser arrays by displacement Talbot lithography and selective area sublimation

Damilano, B., Coulon, P. M., Vézian, S., Brändli, V., Duboz, J. Y., Massies, J. & Shields, P. A., 27 Mar 2019, In : Applied Physics Express. 12, 4, 045007.

Research output: Contribution to journalArticle

Open Access
8 Downloads (Pure)

Understanding resolution limit of Displacement Talbot Lithography

Chausse, P., Le Boulbar, E., Lis, S. & Shields, P., 4 Mar 2019, In : Optics Express. 27, 5, p. 5918-5930 13 p.

Research output: Contribution to journalArticle

Open Access

“Double” displacement Talbot lithography: Fast, wafer-scale, direct-writing of complex periodic nanopatterns

Chausse, P., Boulbar, E. L., Coulon, P. M. & Shields, P. A., 28 Oct 2019, In : Optics Express. 27, 22, p. 32037-32046 10 p.

Research output: Contribution to journalReview article

Open Access
6 Citations (Scopus)
33 Downloads (Pure)

Deep UV Emission from Highly Ordered AlGaN/AlN Core–Shell Nanorods

Coulon, P-M., Kusch, G., Martin, R. W. & Shields, P. A., 3 Oct 2018, In : ACS Applied Materials and Interfaces. 10, 39, p. 33441-33449 9 p.

Research output: Contribution to journalArticle

Open Access
Light emitting diodes
Stark effect


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), University of Bath, Mar 2017


Fabrication of high-aspect ratio GaN nanostructures for advanced photonic devices

Le Boulbar, E. (Creator), Lewins, C. (Creator), Allsopp, D. (Creator), Bowen, C. (Creator), Shields, P. (Creator), University of Bath, Apr 2016


Dataset for Investigation of InGaN facet-dependent non-polar growth rates and composition for core-shell LEDs

Shields, P. (Creator), Girgel, I. (Creator), Le Boulbar, E. (Creator), Coulon, P. (Creator), Sahonta, S. (Creator), Allsopp, D. (Creator), Humphreys, C. (Creator), University of Bath, 27 Jan 2016



Development of InGaN/GaN Core-Shell Light Emitters

Author: Girgel, I., 27 Jun 2017

Supervisor: Shields, P. (Supervisor)

Student thesis: Doctoral ThesisPhD


Fabrication and Characterisation of III-nitride light emitting diodes emitting at non-standard wavelengths

Author: Cavanagh, K. F., 1 May 2019

Supervisor: Wang, W. (Supervisor), Allsopp, D. (Supervisor) & Shields, P. (Supervisor)

Student thesis: Doctoral ThesisPhD


Photonic Crystals for the Control of Light Extraction from III-Nitride Light-Emitting Diodes

Author: Lewins, C., 1 Jun 2016

Supervisor: Allsopp, D. (Supervisor) & Shields, P. (Supervisor)

Student thesis: Doctoral ThesisPhD


Simulation, Optimisation and Manufacture of Gallium Nitride Based Blue Light Emitting Diodes on Silicon substrates

Author: Vinden, K., 17 Jul 2019

Supervisor: Shields, P. (Supervisor) & Allsopp, D. (Supervisor)

Student thesis: Doctoral ThesisPhD