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Photodarkening of amorphous selenium under high pressure

Ikemoto, H., Tsuzuki, T., Inui, Masanori, Yao, Makoto and Endo, Hirohisa 2002, Photodarkening of amorphous selenium under high pressure, Oldenbourg wissenschaftsverlag, GmbH, vol. 216, no. 9, pp. 1107-1121, doi: 10.1524/zpch.2002.216.9.1107.

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Title Photodarkening of amorphous selenium under high pressure
Author(s) Ikemoto, H.
Tsuzuki, T.
Inui, Masanori
Yao, Makoto
Endo, Hirohisa
Journal name Oldenbourg wissenschaftsverlag, GmbH
Volume number 216
Issue number 9
Start page 1107
End page 1121
Publisher Zeitschrift fuer Physikalische Chemie
Place of publication Munich, Germany
Publication date 2002-09
ISSN 0942-9352
Summary The photodarkening phenomena of amorphous Se have been studied by the optical absorption coefficient, sound velocity and attenuation measurements. The light illumination at low temperatures induces the photodarkening, and the photodarkened state is completely recovered by annealing near 306 K corresponding to the glass transition temperature. The photodarkening is enhanced by application of pressure. The sound velocity decreases and the sound attenuation increases by the illumination at low temperature. These suggest that a structural disorder increases in the photodarkened state. Three stages are observed for the recovery process of the photodarkened specimen. The photodarkening and the recovery process are discussed on the basis of VAP (valence alternative pair) model.
Language eng
DOI 10.1524/zpch.2002.216.9.1107
Field of Research 020499 Condensed Matter Physics not elsewhere classified
Socio Economic Objective 970102 Expanding Knowledge in the Physical Sciences
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2002, Oldenbourg wissenschaftsverlag, GmbH
Persistent URL http://hdl.handle.net/10536/DRO/DU:30022550

Document type: Journal Article
Collections: Centre for Material and Fibre Innovation
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Every reasonable effort has been made to ensure that permission has been obtained for items included in DRO. If you believe that your rights have been infringed by this repository, please contact drosupport@deakin.edu.au.