Temperature dependence of optical absorption for the visible region in transparent conducting oxides |
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Authors: | MA Grado-Caffaro M Grado-Caffaro |
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Institution: | SAPIENZA S.L. (Scientific Consultants), C/Julio Palacios 11, 9-B, 28029 Madrid, Spain |
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Abstract: | We study theoretically the temperature dependence of the optical-absorption coefficient, for the visible region, in thin films of transparent conducting oxides by using the well-known Varshni approach relative to optical band-gap energy. Zero absorption is considered and an approximate formula for the coefficient of visible absorption is derived when photon energy is near the band-gap energy, that is, when absorption is negligible. |
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Keywords: | Temperature dependence Coefficient of visible absorption Transparent conducting oxides Optical band-gap Varshni model |
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