Reversible photo-induced volume changes in evaporated As2S3 and As4Se5Ge1 films |
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Authors: | H Hamanaka K Tanaka A Matsuda S Iizima |
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Institution: | Electrochemical Laboratory, Tanashi, Tokyo, Japan |
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Abstract: | Reversible photo-induced volume changes have been observed accompanying reversible optical absorption edge shift produced by successive cycles of band gap illumination and annealing for well-annealed evaporated As2S3 and As4Se5Ge1 films. The As2S3 film shows an increase in its volume by illumination, while As4Se5Ge1 film shows a decrease. Qualitative discussion has been given in connection with pressure-induced optical constant change. |
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