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The Strathprints institutional repository is a digital archive of University of Strathclyde's Open Access research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including by researchers from the Department of Computer & Information Sciences involved in mathematically structured programming, similarity and metric search, computer security, software systems, combinatronics and digital health.

The Department also includes the iSchool Research Group, which performs leading research into socio-technical phenomena and topics such as information retrieval and information seeking behaviour.

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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.