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 SM ISO690:2012VASILIEV, Ion, SHUTOV, Serghei. Study of optical absorption in thin films of a-As2Se3 by photocapacitance spectroscopy. In: Semiconductors, 1998, vol. 32, pp. 439-442. ISSN 1063-7826. DOI: https://doi.org/10.1134/1.1187411 |
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  Semiconductors |
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| Volumul 32 / 1998 / ISSN 1063-7826 | ||||||
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| DOI:https://doi.org/10.1134/1.1187411 | ||||||
| Pag. 439-442 | ||||||
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Photocapacitive spectroscopy is used for the first time to study optical absorption in thin films of a-As2Se3 for optical photons with energies below the gap width. Photocapacitance spectra are obtained over energies of 0.83-1.94 eV and used to characterize the density of localized states in the tail of the valence band and in deep states of charged defects. Aging and illumination of the film are found to affect the level of optical absorption by deep centers. |
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| Cuvinte-cheie chalcogenide glasses, Optical phenomena, activation energy |
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