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Please use this identifier to cite or link to this item: http://hdl.handle.net/1783.1/1444
Title: Raman scattering and photoluminescence of ZnSxTe1−x mixed crystals
Authors: Liu, N. Z.
Li, G. H.
Zhu, Z. M.
Han, H. X.
Wang, Z. P.
Ge, Wei-Kun
Sou, Philip Iam-Keong
Keywords: Raman scattering
Photoluminescence
Crystals
Issue Date: 11-May-1998
Citation: Journal of physics. Condensed matter, v. 10, 1998, p. 4119-4129
Abstract: We have investigated the Raman scattering and the photoluminescence (PL) of ZnSxTe1−x mixed crystals grown by MBE, covering the entire composition range (0 ≤ x < 1). The results of Raman studies show that the ZnSxTe1−x mixed crystals display two-mode behaviour. In addition, photoluminescence spectra obtained in backscattering and edge-emission geometries, reflectivity spectra and the temperature dependence of the photoluminescence of ZnSxTe1−x have been employed to find out the origin of PL emissions in ZnSxTe1−x with different x values. The results indicate that emission bands, for the samples with small x values, can be related to the band gap transitions or a shallow-level emission centre, while as x approaches 1, they are designated to strong radiative recombination of Te isoelectronic centres (IECs).
Description: Journal of Physics: Condensed Matter © copyright (1998) IOP Publishing Ltd. The Journal's web site is located at http://www.iop.org/EJ/journal/JPhysCM
URI: http://hdl.handle.net/1783.1/1444
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