Aging Effect of Capacitance and Related Effects in Au/a-Se/Al Structure
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概要
- 論文の詳細を見る
The contact between an a-Se and an Al electrode was found to show some characteristic features. When samples of the Au/a-Se/Al structure were kept in air, their capacitance first decreased and then increased. At the same time, their photocurrent and photovoltage increased gradually with time, and their spectral responses shifted. A chemical EMF appeared in the samples, also. The capacitance of the samples became voltage-dependent after a long time. These aging effects could be explained well by considering them to be the result of Se crystallization based on the migration of Al ions into Se assisted by the chemical reaction of Se and Al in moisture (H_2O). The migration of Al ions and the structural change of the a-Se layer with time were confirmed by AES, RHEED and X-ray diffraction analyses. Al ions migrating into the Se layer are thought to act as nuclei for the crystallization of a-Se.
- 社団法人応用物理学会の論文
- 1982-12-20
著者
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Ema Yoshinori
Department Of Electrical Engineering Faculty Of Engineering Shizuoka University
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Hayashi Toshiya
Department Of Applied Biological Chemistry Faculty Of Agriculture Meijo University
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Ema Yoshinori
Department Of Electrical And Electronic Engineering Faculty Of Engineering Shizuoka University
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