Optimization of glass properties by substituting AgI with Ag2S in chalcogenide system
Optimization of glass properties by substituting AgI with Ag2S in chalcogenide system
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在硫族化物体系中用 Ag2S 替代 AgI 优化玻璃性能
DOI：
10.1016/j.ceramint.2019.07.305
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发表时间：
2019
影响因子：
5.2
通讯作者：
Dai Shixun
中科院分区：
文献类型：
--
作者：
Ma Baochen;Jiao Qing;Zhang Yeting;Sun Xing;Yin Guoliang;Zhang Xianghua;Ma Hongli;Liu Xueyun;Dai Shixun
采用传统的真空熔淬法成功制备了GaSbS-AgI-Ag 2S系统玻璃。采用差示扫描量热仪（DSC）、拉曼和电化学阻抗谱技术研究了Ag 2S取代AgI后体系的网络结构和物理性质。随着Ag 2S含量的增加，玻璃的玻璃化转变温度（Tg）、密度和硬度均有所提高。当在玻璃基质中引入高浓度的Ag+时，玻璃体系的离子电导率（室温）保持在约10−4S/cm。电导率的变化源于离子通道的结构变化。从分析结果中推断出提高固态电解质材料的机械稳定性、热稳定性和导电性的最佳玻璃组成。
GaSbS–AgI–Ag2S glass system was successfully prepared through the traditional method of vacuum melt quenching. The network structure and physical properties of the system response to the substitution of AgI with Ag2S were investigated by differential scanning calorimeter (DSC), Raman, and electrochemical impedance spectroscopic techniques. The glass transition temperature (Tg), density and hardness of the glass system improved as Ag2S content was increased. The ionic conductivity (room temperature) of the glass system was maintained at the order of ~10−4S/cm when a high concentration of Ag+was introduced in the glass matrix. The variation in conductivity originated from structural changes in ionic channels. The optimal glass composition for improving the mechanical and thermal stability and conductivity of solid-state electrolyte materials was inferred from analytical results.