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Proceedings Paper

Temperature study of absorption and photoluminescence spectra of CdSxSe1-x films grown on quartz substrate by pulse laser ablation technique
Author(s): G. Perna; V. Capozzi; S. Pagliara; M. Ambrico
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Paper Abstract

The optical properties of CdSxSe(subscript 1-x/ alloy films, deposited on quartz substrate by means of pulsed laser ablation technique, have been investigated by absorption and photoluminescence measurements as a function of the temperature. The absorption measurements, analyzed according to the Elliot theory, permit to obtain the temperature and composition dependence of the band gap, which are in good agreement with well known phenomenological models. The photoluminescence efficiency persisting up to room temperature is very interesting for device applications, because of the capability of tuning the emission line in the spectral region from green to red, by varying the sulphur concentration x.

Paper Details

Date Published: 25 February 2000
PDF: 8 pages
Proc. SPIE 4070, ALT '99 International Conference on Advanced Laser Technologies, (25 February 2000); doi: 10.1117/12.378181
Show Author Affiliations
G. Perna, Univ. degli Studi di Bari and INFM (Italy)
V. Capozzi, Univ. degli Studi di Bari and INFM (Italy)
S. Pagliara, Univ. degli Studi di Bari and INFM (Italy)
M. Ambrico, Istituto Materiali Speciali (Italy)

Published in SPIE Proceedings Vol. 4070:
ALT '99 International Conference on Advanced Laser Technologies
Vladimir I. Pustovoy; Vitali I. Konov, Editor(s)

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