Philip Shields

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

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Projects 2010 2021

2 Active
7 Finished

Manufacturing of Nano-Engineered III-N Semiconductors

Shields, P., Allsopp, D. & Wang, W.

Engineering and Physical Sciences Research Council

1/05/15 → 28/02/21

Project: Research council

manufacturing

nitrides

wafers

gallium nitrides

light emitting diodes

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

lithography

manufacturing

nitrides

industries

wafers

INREP - Towards Indium free TCOs

Allsopp, D. & Shields, P.

EU - Horizon 2020

1/02/15 → 31/01/18

Project: EU Commission

Oxides

Indium

Touch screens

Solar cells

Electrodes

Nanoscale Sensors for Healthcare and the Environment (NANOSENSE)

Shields, P. & Allsopp, D.

13/10/14 → 13/04/15

Project: Research-related funding

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

Allsopp, D. & Shields, P.

Innovate UK

2/12/13 → 30/11/15

Project: Central government, health and local authorities

Research Output 1999 2019

68 Article
5 Paper
3 Chapter
3 Conference contribution
3 More
- 3 Other

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 journal › Article

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 journal › Article

Open Access

6 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 journal › Article

Open Access

File

3 Citations (Scopus)

28 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 journal › Article

Open Access

File

Nanorods

Nanostructures

Light emitting diodes

Stark effect

Fabrication

GaN distributed bragg reflector cavity for sensing applications

Jia, S., Le Boulbar, E. D., Balram, K., Pugh, J. R., Wang, T., Allsopp, D. W. E., Shields, P. A. & Cryan, M. J., 1 Jan 2018, Frontiers in Optics, FIO 2018. OSA Publishing, Vol. Part F114-FIO 2018.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Datasets

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

DOI: 10.15125/BATH-00257

Dataset

Dataset for Structural and optical emission uniformity of m-plane InGaN single quantum wells in core-shell nanorods

Le Boulbar, E. (Creator), 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