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. � 2005 Elsevier B.V. All rights reserved.
Original language | English |
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Pages (from-to) | 1582-1585 |
Number of pages | 4 |
Journal | Journal of Non-Crystalline Solids |
Volume | 351 |
Publication status | Published - 2005 |