Piezoelectric Photothermal Study of the Optical Absorption Spectra of Microcrystalline Silicon
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概要
- 論文の詳細を見る
The piezoelectric photothermal (PPT) signals from hydrogenated microcrystalline silicon ($\mu$c-Si:H) films were measured and the effects of the deposition rate on the optical properties were investigated. Increasing the deposition rate resulted in (i) a decrease in optical absorption coefficient, (ii) a shift in effective energy gap to the higher photon energy side, and (iii) a increase in the density of localized states originating from a structural disorder. These results led to a reduction in the photovoltaic conversion efficiency of the solar cells for high-deposition-rate samples. The usefulness of the PPT method for investigating the optical properties of thin and transparent $\mu$c-Si:H films was also demonstrated.
- Published by the Japan Society of Applied Physics through the Institute of Pure and Applied Physicsの論文
- 2004-05-15
著者
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Ikari Tetsuo
Department Of Electrical And Electronic Engineering Miyazaki University
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FUKUYAMA Atsuhiko
Department of Electronics, Miyazaki University
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Sakai Kentaro
Frontier Science Research Center Miyazaki University
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Tada Masaki
Department Of Applied Physics University Of Miyazaki
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Ohta Masashi
Department Of Condensed Matter Physics Graduate School Of Science And Engineering Tokyo Institute Of
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Sakai Kentaro
Frontier Science Research Center, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan
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Wang Ping
Department of Applied Physics, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan
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Fukuyama Atsuhiko
Department of Applied Physics, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan
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Fukuyama Atsuhiko
Department of Applied Physics, Miyazaki University, 1-1 Gakuen Kibanadai-nishi, Miyazaki 889-2192, Japan
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Ikari Tetsuo
Department of Electrical and Electronic Engineering, University of Miyazaki, 1-1 Gakuen-Kibanadai-Nishi, Miyazaki 889-2192, Japan
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