Structural investigation of crystallized Ge-Ga-Se chalcogenide glasses
Date
2019
Authors
Klym, H.
Shpotyuk, O.
Karbovnyk, I.
Calvez, L.
Popov, Anatoli I.
Journal Title
Journal ISSN
Volume Title
Publisher
Institute of Physics Publishing
Abstract
Crystallization transformation in the 80GeSe2-20Ga2Se3 chalcogenide glasses caused by annealing at 380 °C during different duration (25, 50, 80 and 100 hours) are studied using X-ray diffraction and atomic force microscopy methods. It is established that GeGa4Se phase of low- and high-temperature modification, Ga2Se3 phase (α- and γ-modification) and GeSe2 phases are crystallized during this process. It is shown that annealing duration over 50 h does not lead to further internal structural crystallization, while annealing for 80 h result in processes of surface crystallization.
Description
H. Klym thanks to the Ministry of Education and Science of Ukraine for support and Dr. P. Demchenko for the assistance in XRD experiments.