Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

Temperature dependent optical properties of InGaN/GaN quantum well structures

Hurst, P. and Dawson, P. and Levetas, S.A. and Godfrey, M.J. and Watson, I.M. and Duggan, G. (2001) Temperature dependent optical properties of InGaN/GaN quantum well structures. Physica Status Solidi B, 228 (1). pp. 137-140. ISSN 0370-1972

Full text not available in this repository. (Request a copy from the Strathclyde author)

Abstract

We have investigated the variation of the photoluminescence intensity and decay time as a function of temperature of a series of InGaN/GaN quantum well structures in which the number of quantum wells was varied. All the samples exhibited a decrease in photoluminescence intensity and decay time with increasing temperature with the rate of decrease being reduced as the number of quantum wells was increased. We have compared these results with a theoretical model which describes the effects of thermally excited carrier escape and recapture. We find reasonable agreement with the results of the model and the experiments for the samples incorporating only a few quantum wells supporting the idea that thermally excited carrier loss is the main non-radiative recombination path.