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Photodarkening in amorphous As2S3 and Se under hydrostatic pressure

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Title: Photodarkening in amorphous As2S3 and Se under hydrostatic pressure
Authors: Tanaka, Keiji1 Browse this author →KAKEN DB
Authors(alt): 田中, 啓司1
Issue Date: 1984
Publisher: American Physical Society
Volume: 30
Issue: 8
Start Page: 4549
End Page: 4554
Publisher DOI: 10.1103/PhysRevB.30.4549
Abstract: Shifts in the optical-absorption edges induced by band-gap illumination and annealing under pressure have been studied for As2S3 and Se. Both materials, if annealed at 1 atm beforehand, undergo a decrease in the band-gap energy with illumination under pressure. This decrease is accompanied by a similar degree of densification as that induced by annealing. The As2S3 specimen annealed under pressure at the glass-transition temperature exhibits reversible photodarkening, the magnitude of which increases with pressure. These observations are accounted for quantitatively as resulting from an enhancement of the intermolecular interactions.
Rights: Copyright © 1984 American Physical Society
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 田中 啓司

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