Photo-induced changes in optical properties of As 2 S 3 and As 2 Se 3 films deposited at normal and oblique incidence
作者： P. Bhardwaj , P. K. Shishodia , R. M. Mehra
关键词: Band gap 、 Amorphous solid 、 Vacuum evaporation 、 Materials science 、 Optics 、 Molar absorptivity 、 Refractive index 、 Oblique incidence 、 Chalcogenide 、 Ultraviolet
摘要: Photostructural transformations in amorphous chalcogenide films have been a subject of intensive research so far. In this paper we discuss the changes optical properties typical As-based glasses (As2S3 and As2Se3) on exposure to ultraviolet (UV) light. An attempt has made systematically investigate parameters like extinction coefficient, refractive index bandgap by measuring same for as-grown UV-exposed As2S3 As2Se3 prepared vacuum evaporation technique.
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