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Details of Grant 

EPSRC Reference: GR/S28150/01
Title: Gallium Nitride LEDs for Display Applications
Principal Investigator: Humphreys, Professor Sir C
Other Investigators:
Penty, Professor R White, Professor I
Researcher Co-Investigators:
Project Partners:
Forge Europa (International Headquarters Thomas Swan
Department: Materials Science & Metallurgy
Organisation: University of Cambridge
Scheme: LINK
Starts: 13 October 2003 Ends: 12 July 2007 Value (£): 375,222
EPSRC Research Topic Classifications:
Materials Characterisation Optical Devices & Subsystems
EPSRC Industrial Sector Classifications:
Electronics
Related Grants:
Panel History:  
Summary on Grant Application Form
GaN-based green, blue, white and UV LEDs are expected to last for 100,000 hours (11 years). However, many are found in practice to fail prematurely. This proposal seeks to understand, explain and rectify this important problem. In collaboration with Forge Europa and Thomas Swan, we will perform a detailed assessment of failure mechanisms using a range of advanced electron microscopy techniques, including in-situ studies. We will also carry out modelling of temperature distributions and then process LEDs and special structures which should have the theoretical lifetime of 100,000 hours.
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Further Information:  
Organisation Website: http://www.cam.ac.uk