A model for the photostructural changes in amorphous chalcogenides

Prolonged photoirradiation induces a volume expansion and causes a decrease in the optical bandgap (photodarkening) in well annealed amorphous chalcogenides. A microscopic mechanism for the origin of these changes is proposed in terms of the repulsive Coulomb force between layered clusters which can...

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Veröffentlicht in:	Philosophical magazine letters 1998-03, Vol.77 (3), p.153-158
Hauptverfasser:	Shimakawa, K., Yoshida, N., Ganjoo, Ashtosh, Kuzukawa, Y., Singh, J.
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: electronic structure, electrical, magnetic, and optical properties Electron density of states and band structure of crystalline solids Electron states Exact sciences and technology Other inorganic compounds Physics
Online-Zugang:	Volltext
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