Structural investigation of crystallized Ge-Ga-Se chalcogenide glasses

Abstract : Crystallization transformation in the 80GeSe 2 -20Ga 2 Se 3 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 GeGa 4 Se phase of low- and high-temperature modification, Ga 2 Se 3 phase (α- and γ-modification) and GeSe 2 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. © Published under licence by IOP Publishing Ltd.
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H. Klym, O. Shpotyuk, I. Karbovnyk, L. Calvez, A.I. Popov. Structural investigation of crystallized Ge-Ga-Se chalcogenide glasses. 12th International Scientific Conference on Functional Materials and Nanotechnologies, FM and NT 2018, Oct 2018, Riga, Latvia. pp.12020, ⟨10.1088/1757-899X/503/1/012020⟩. ⟨hal-02161311⟩

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