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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
Publisher

Year
Volume
89
Issue
5-6
Pages
717-726
Physical description
Dates
published
1996-05
received
1996-02-19
(unknown)
1996-05-21
Contributors
author
  • Institute of Material Science, Nghia do-Tu liem, Hanoi, Vietnam
author
  • Institute of Material Science, Nghia do-Tu liem, Hanoi, Vietnam
author
  • Institute of Material Science, Nghia do-Tu liem, Hanoi, Vietnam
References
Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv89z515kz
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