Localized states in wide-gap oxide glasses

Anatoly N. Trukhin

doi:10.1117/12.266518

4 February 1997 Localized states in wide-gap oxide glasses

Anatoly N. Trukhin

Proceedings Volume 2967, Optical Inorganic Dielectric Materials and Devices; (1997) https://doi.org/10.1117/12.266518
Event: International Conference on Advanced Optical Materials and Devices, 1996, Riga, Latvia

Abstract

Localized states manifest themselves by light absorption at the optical gap of a glass and by luminescence excited there with Stoke's shift. They are created by the minority structural motifs of one or many structural modifications in which a material can exist, and which can provide electronic states absorption at the optical gap. Their wavefunctions overlapping determine the luminescence intensity dependence on the temperature [I(T)on the order of magnitude exp(- T/T₀)] and power law (t^-1) of luminescence decay kinetics, which include intra-center processes due to triplet-singlet transitions and recombination processes due to a tunnel and overbarrier transitions, as well as a fast component of luminescence decay (some ns) due to singlet-singlet transitions.

Citation Download Citation

Anatoly N. Trukhin "Localized states in wide-gap oxide glasses", Proc. SPIE 2967, Optical Inorganic Dielectric Materials and Devices, (4 February 1997); https://doi.org/10.1117/12.266518

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