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Thermally Activated Photoconduction and Alternating-Current Conduction in Se75Ge20Ag5 Chalcogenide Glass: Investigation of Meyer--Neldel Rule |
R. S. Sharma1, N. Mehta2, A. Kumar1 |
1Department of Physics, Harcourt Butler Technological Institute, Kanpur, India2Department of Physics, Banaras Hindu University, Varanasi, India |
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Cite this article: |
R. S. Sharma, N. Mehta, A. Kumar 2008 Chin. Phys. Lett. 25 4079-4082 |
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Abstract We report on the observation of Meyer--Neldel rule in glassy Se75Ge20Ag5 alloy where 8710;E is varied by two different methods. In the first approach, the intensity of light varies while measuring the photoconductivity in amorphous thin films of Se75Ge20Ag5 instead of changing composition of the glassy system. In the second approach, the variation of ac conductivity with temperature is found to be exponential and the activation energy is found to vary with frequency.
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Keywords:
61.43.Dq
73.50.Pz
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Received: 10 March 2008
Published: 25 October 2008
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PACS: |
61.43.Dq
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(Amorphous semiconductors, metals, and alloys)
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73.50.Pz
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(Photoconduction and photovoltaic effects)
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