CsCl对GeS_2-Sb_2S_3硫系玻璃光学及析晶特性的影响  

EFFECT OF CsCI ON OPTICAL AND CRYSTALLIZATION PROPERTIES OF GeS_2-Sb_2S_3 CHALCOGENIDE GLASSES

作　　者：张花[1] 聂秋华[1] 戴世勋[1] 沈祥[1] 王训四[1] 章向华[1,2] 

机构地区：[1]宁波大学信息科学与工程学院,浙江宁波315211 [2]法国雷恩Ⅰ大学玻璃与陶瓷实验室,法国雷恩35042

出　　处：《硅酸盐学报》2009年第1期98-102,共5页Journal of The Chinese Ceramic Society

基　　金：“973”计划前期研究项目(2006CB708607);浙江省自然科学基金(2006C11127)资助项目;宁波市科技局科技攻关(国际合作)项目(2006B100068);宁波市自然科学基金(2006A610056)资助项目。

摘　　要：通过熔融-淬冷法制备了(100-x)(0.9GeS_2-0.1Sb_2S_3)-xCsCl(x=5,10,15,20,以摩尔计)系列硫卤玻璃。测试了样品的折射率和吸收光谱。根据Tauc方程计算了间接允许光学带隙和直接允许光学带隙。通过差热分析对微晶玻璃析晶动力学进行了研究。利用析晶活化能(E)和频率因子(v),并结合动力学因素和热力学因素分析了玻璃的稳定性。结果表明:随着CsCl含量的增加,样品的线性折射率变小,短波截止波长蓝移,光学带隙逐渐增大,玻璃稳定性变差;85(0.9GeS_2-0.1Sb_2S_3)-15CsCl玻璃样品较适合制备透明的微晶玻璃,可用于研究硫系基质玻璃与微晶玻璃之间的三阶非线性效应。A series of(100-x)(0.9GeS_2-0.1Sb_2S_3)-xCsCl(x=5,10,15 and 20,in mole)chalcogenide glasses were prepared by the conventional melt-quenching method.The refractive index and the absorption spectra of the samples were measured.The indirect and direct allowed optical band gaps of the samples were calculated according to the Tanc equation.The kinetics of the crystallization of chalcogenide glasses were studied using differential thermal analysis at different heating rates.The glass stability was analyzed by the...

关 键 词：硫卤玻璃 折射率 光学带隙 析晶动力学 

分 类 号：TQ171.1[化学工程—玻璃工业]