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Research interests

Profile

Dr Allsopp received the degrees of BSc in Physics, MSc and PhD in Electronic Engineering from the University of Sheffield in 1971, 1974 and 1977. From 1977 to 1979 he was at Ferranti Electronics Limited developing high speed Si transistors and integrated circuits.

From 1979 to 1984 he was at UMIST researching defects in semiconductors, and from 1984 to 1986 he was at British Telecom Research Laboratories, Martlesham Heath.

In 1986 he joined the University of York where he established a group researching photonic devices. In 1999 he joined the Optoelectronics Group at the University of Bath.

For 2006-2007 he was Royal Academy of Engineering/ Leverhulme Trust Senior Research Fellow researching nanofabrication technologies for photonic applications. 

Research

  • GaN Light Emitting Diodes for solid state lighting
    This collaborative research project funded by the DTI involves advancing LED performance. The research exploits the University’s capability to grow state-of-the-art Group III-Nitride epitaxy by MOVPE and HVPE, its facilities nanofabrication and advanced optoelectronic device characterisation.
  • Novel nanofabrication techniques and their application to sub-wavelength optical devices and to advanced Group III-Nitride epitaxial growth (funded by the European Union FP 6 STREP “N2T2”)  
  • Advanced optical modulators and switches based quantum well effects(EPSRC funded).
    This research has two strands: an investigation of the application of electroabsorption modulators to the generation and detection of TeraHertz radiation and of the feasibility of using intersubband absorption to high speed optical modulation.
  • Sensors and electronics for harsh environments (EU funded via FP7)
    This project will exploit the properties of c-plane GaN for sensing pressure, mechanical force and temperature in harsh environments, including high temperatures (above 500°C). The research includes developing GaN epitaxial growth on Si/polycrystalline diamond composite substrates designed for heat extraction and/or thermal stability. Other sensor research includes developing wide area arrays of sensors for robotic skin (supported by OCRobotics, Bristol).
 

Lowering the cost of LED lighting

Duncan Allsopp discusses his involvement in a consortium looking at solving problems that limit take-up of LED lights. Read more

 

Fingerprint Fingerprint is based on mining the text of the person's scientific documents to create an index of weighted terms, which defines the key subjects of each individual researcher.

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Network Recent external collaboration on country level. Dive into details by clicking on the dots.

Projects 2006 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
lithography
manufacturing
nitrides
industries
wafers

IAA - Effect Photonics Ltd

Allsopp, D. & Watson, R.

1/02/1631/03/17

Project: Research council

INREP

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 fundingInternally Funded Research

Research Output 2001 2018

A Fully Controlled LED Light Source With an Emphasis on Repeatable Photocatalytic Experimentation

Sergejevs, A., Jan 2018, 227 p.

Research output: ThesisDoctoral Thesis

Open Access
File
experimentation
light sources
light emitting diodes
reactors
theses

Optical characterization of magnesium incorporation in p-GaN layers for core-shell nanorod light-emitting diodes

Gîrgel, I., Šatka, A., Priesol, J., Coulon, P. M., Le Boulbar, E. D., Batten, T., Allsopp, D. W. E. & Shields, P. A., 20 Mar 2018, In : Journal of Physics D: Applied Physics. 51, 15, 155103.

Research output: Contribution to journalArticle

Open Access
Nanorods
Magnesium
nanorods
Light emitting diodes
magnesium
1 Citations

A calibrated UV-LED based light source for water purification and characterisation of photocatalysis

Sergejevs, A., Clarke, C. T., Allsopp, D. W. E., Marugan, J., Jaroenworaluck, A., Singhapong, W., Manpetch, P., Timmers, R., Casado, C. & Bowen, C. R., 1 Nov 2017, In : Photochemical & Photobiological Sciences. 16, 11, p. 1690-1699 10 p.

Research output: Contribution to journalArticle

Open Access
File
water treatment
Photocatalysis
ultraviolet radiation
Purification
Light emitting diodes

Computational Electromagnetic Modelling of InGaN/GaN Nano-LEDs

Fox, S., Oct 2017

Research output: ThesisDoctoral Thesis

Open Access
File
computational electromagnetics
light emitting diodes
nanorods
finite difference time domain method
nitrides
4 Citations

Design and fabrication of enhanced lateral growth for dislocation reduction in GaN using nanodashes

Shields, P., Le Boulbar, E., Priesol, J., Nouf-Allehiani, M., Naresh-Kumar, G., Fox, S., Trager-Cowan, C., Šatka, A. & Allsopp, D., 15 May 2017, In : Journal of Crystal Growth. 466, p. 30-38

Research output: Contribution to journalArticle

Open Access
File
Dislocations (crystals)
Fabrication
fabrication
Masks
Gallium nitride

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

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

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

Thesis

A Fully Controlled LED Light Source With an Emphasis on Repeatable Photocatalytic Experimentation

Author: Sergejevs, A., 29 Jan 2018

Supervisor: Clarke, C. (Supervisor), Allsopp, D. (Supervisor) & Bowen, C. (Advisor)

Student thesis: Doctoral ThesisPhD

File

Computational Electromagnetic Modelling of InGaN/GaN Nano-LEDs

Author: Fox, S., 12 Apr 2017

Supervisor: Allsopp, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

File

Design, fabrication and characterization of one dimensional photonic crystal devices

Author: Shi, X., 1 Dec 2007

Supervisor: Allsopp, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

File

Fabrication and Characterization of GaN grown on Silicon Vertical Structure Light Emitting Diodes

Author: Ki, P., 11 Jan 2017

Supervisor: Allsopp, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

File

Modelling, fabrication and development of GaN-based sensors and substrates for high strain environments

Author: Edwards, M., 31 Dec 2012

Supervisor: Bowen, C. (Supervisor) & Allsopp, D. (Supervisor)

Student thesis: Doctoral ThesisPhD

File