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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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nanorods Physics & Astronomy
light emitting diodes Physics & Astronomy
Nanorods Engineering & Materials Science
quantum wells Physics & Astronomy
Light emitting diodes Engineering & Materials Science
Semiconductor quantum wells Engineering & Materials Science
photonics Physics & Astronomy
photoluminescence Physics & Astronomy

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Projects 2010 2021

Manufacturing of Nano-Engineered III-N Semiconductors

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

1/05/1528/02/21

Project: Research council

manufacturing
nitrides
wafers
gallium nitrides
light emitting diodes

Manufacturing of Nano-Engineered III-N Semiconductors - Equipment

Shields, P. & Allsopp, D.

1/02/1531/01/20

Project: Research council

lithography
manufacturing
nitrides
industries
wafers

INREP - Towards Indium free TCOs

Allsopp, D. & Shields, P.

1/02/1531/01/18

Project: EU Commission

Oxides
Indium
Touch screens
Solar cells
Electrodes

Nanoscale Sensors for Healthcare and the Environment (NANOSENSE)

Shields, P. & Allsopp, D.

13/10/1413/04/15

Project: Research-related funding

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

Allsopp, D. & Shields, P.

2/12/1330/11/15

Project: Central government, health and local authorities

Research Output 1999 2019

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

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
File
3 Citations (Scopus)

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

Coulon, P-M., Kusch, G., Martin, R. W. & Shields, P. A., 6 Sep 2018, In : ACS Applied Materials and Interfaces.

Research output: Contribution to journalArticle

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 proceedingConference contribution

1 Citation (Scopus)

Hybrid top-down/bottom-up fabrication of a highly uniform and organized faceted AlN nanorod scaffold

Coulon, P-M., Kusch, G., Fletcher, P., Chausse, P., Martin, R. W. & Shields, P. A., 5 Jul 2018, In : Materials. 11, 7, 1140.

Research output: Contribution to journalArticle

Open Access
Nanorods
Scaffolds
Fabrication
Dry etching
Wet etching

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

Dataset

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

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

Dataset

Thesis

Development of InGaN/GaN Core-Shell Light Emitters

Author: Girgel, I., 27 Jun 2017

Supervisor: Shields, P. (Supervisor)

Student thesis: Doctoral ThesisPhD

File

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

File

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

File