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LIGHT-INDUCED PLASTICITY IN CHALCOGENIDE GLASSES: EVOLUTION OF PLASTIC PROPERTIES UNDER IRRADIATION

M. L. Trunov1,*

Affiliation

  1. Uzhgorod National University, 13, Kapitulna str., Uzhgorod 88000, Ukraine

Abstract

The evolution of the plastic properties of chalcogenide glasses of AsxSe1-x system irradiated by band-gap light has been studied using a micro- and nanoindentation methods. The photo induced variation of plasticity (photo-plastic effect) exhibits a two-stage character, whereby an intermediate metastable phase is formed in the first stage. The plasticity of this phase is higher than that of the light-stable phase formed under prolonged irradiation. The most pronounced negative photo-plastic effect (giant photo-softening) is observed in As20Se80 films while their photo-induced optical constants change are the lowest..

Keywords

Chalcogenide glasses, Photo-plastic effect, Giant Photo-softening, Micro and Nanoindentation.

Submitted at: April 13, 2005
Accepted at: May 26, 2005

Citation

M. L. Trunov, LIGHT-INDUCED PLASTICITY IN CHALCOGENIDE GLASSES: EVOLUTION OF PLASTIC PROPERTIES UNDER IRRADIATION, Journal of Optoelectronics and Advanced Materials Vol. 7, Iss. 3, pp. 1223-1229 (2005)