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1996 | 89 | 5-6 | 717-726
Article title

Identification of the IB Emission Band in Al-Doped ZnS Crystals

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Content
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Languages of publication
EN
Abstracts
EN
Time-resolved luminescence spectroscopy and thermal lensing techniques are applied to the study of deep centre photoluminescence and absorption in Al-doped ZnS crystals, which are as-grown or heat treated in different Zn rich or S rich atmospheres. A blue emission band peaking at 2.89 eV has been identified as IB band in all the mentioned crystals. Parameters of the IB band at 300 K, 77 K and 10 K such as peak energy, half width of spectrum, radiative lifetime have been determined. The IB band exhibits some special properties such as a shift neither with increasing delay time nor with excitation intensity nor with sample temperatures as well as a superlinearly excitation intensity dependence of the luminescence. An energy diagram and electronic transitions in the IB centre are presented to explain the experimental results.
Keywords
EN
Year
Volume
89
Issue
5-6
Pages
717-726
Physical description
Dates
published
1996-05
received
1996-02-19
(unknown)
1996-05-21
References
Document Type
Publication order reference
YADDA identifier
bwmeta1.element.bwnjournal-article-appv89z515kz
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