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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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An in-situ TEM-cathodoluminescence study of electron beam degradation of luminescence from GaN and in 0.1Ga 0.9N quantum wells

Boyall, N.M. and Durose, K. and Watson, I.M. (2003) An in-situ TEM-cathodoluminescence study of electron beam degradation of luminescence from GaN and in 0.1Ga 0.9N quantum wells. MRS Online Proceedings Library, 743. ISSN 0272-9172

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Abstract

The effect of electron beam irradiation on the cathodoluminescence (CL) emission from InGaN/GaN single quantum wells (QW) has been investigated by in-situ measurement of CL in a transmission electron microscope. Analysis of CL quenching over 600s showed that the QW luminescence decayed more quickly than the barrier emission. Both the InGaN and GaN CL decay curves could be fitted to a simple recombination based model suggesting the decay was due to the introduction of non-radiative centres.