Microstructural analysis of Ga₂S₃–2MCl (M = K, Rb, Cs) glasses using Raman scattering

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• 作者：Tao Haizheng ; Mao Shun ; Zhao Xiujian ; Dong Guoping
• 关键词：Chalcohalides ; Raman spectroscopy
• 刊名：Journal of Non-Crystalline Solids
• 出版年：2008
• 期刊代码：50_00223093
• 类别：ms
• 出版时间：15 February 2008
• 卷：354
• 期：12-13
• 页码：1175-1178
• 文件大小：185 K

摘要

Raman scattering spectra of Ga₂S₃–2MCl (M = K, Rb, Cs) glasses have been conducted at room temperature. Based on the analysis of the local co-ordination surroundings of Cs⁺ ions, the similarities and differences of Raman spectra for the glass Ga₂S₃–2CsCl and the bridged molecular GaCl₃ were explained successfully. Through considering the effect of M⁺ ions on mixed anion units [GaS_4−xCl_x] and bridged units [Ga₂S_6−xCl_x] and the corresponding microstructural model, the Raman spectral evolution of the Ga₂S₃–2MCl (M = K, Rb, Cs) glasses was reasonably elucidated.