Article ID Journal Published Year Pages File Type
9778051 Journal of Non-Crystalline Solids 2005 4 Pages PDF
Abstract
We present a microscopic quantum mechanical theory to calculate the reduction in the band gap energy due to illumination in chalcogenides. It is shown that photodarkening occurs due to the strong-carrier lattice interaction leading to pairing of the excited charge carriers. Results demonstrate similar behavior as observed in some experiments.
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Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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A quantum approach to photodarkening in chalcogenides
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