Sn对Ge-Se-Te玻璃结构与光学特性的影响  

Effect of Sn Addition on the Structure and Optical Properties of Ge-Se-Te Chalcogenide Glasses

作　　者：尹冬梅[1] 屠德阳 车丙晨 张芳芳[1] 林常规[1] 戴世勋[1] 

机构地区：[1]宁波大学高等技术研究院,红外材料与器件实验室,宁波315211

出　　处：《无机材料学报》2014年第3期279-283,共5页Journal of Inorganic Materials

基　　金：国家自然科学基金(61177087);973计划项目子课题(2012CB722703);教育部新世纪优秀人才计划(NCET-10-0976);浙江省杰出青年基金(R1101263);宁波市新型光电功能材料及器件创新团队(2009B21007);宁波大学王宽诚幸福基金~~

摘　　要：采用熔融淬冷法制备了系列Ge3Se5Te2Snx(x=0、0.4、0.8、1.2、1.6、2.0,mol%)硫系玻璃。采用X射线衍射(XRD)图谱、差示扫描量热曲线(DSC)、可见/近红外光谱、傅里叶红外(FTIR)光谱、显微拉曼光谱等手段对玻璃的物化性能及结构进行表征,研究发现Sn的引入导致Ge-Se-Te玻璃系统物化性能的变化:玻璃的转变温度Tg降低、红外截止波长发生红移,并有效地降低了杂质吸收峰对样品红外透过率的影响。利用Philips网络约束理论计算的玻璃平均配位数及拉曼光谱的变化,讨论了引入Sn对Ge-Se-Te玻璃的影响。A series of Ge3Se5Te2Snx（x=0, 0.4, 0.8, 1.2, 1.6, 2.0, mol%） chalcogenide glasses were prepared by traditional melt-quenching method. The physiochemical properties and structure changes of glasses were characterized by employing the techniques of X-ray diffraction （XRD）, differential scanning calorimetry （DSC）, visible-near IR spectrum, Fourier transform infrared spectrum （FTIR）, and Raman spectroscope. Physiochemical properties of Ge-Se-Te glasses change with the addition of Sn, including glass transition temperature （Tg） decreacing and infrared cut-off wavelength shifting toward long wavelength which effectively inhibits the absorption peaks of impurities in the mid-IR spectral region. In addition, the origination behind these phenomena is discussed by the average coordination number calculated from Philips network-constrained theory and structural evolution of Raman spectra.

关 键 词：硫系玻璃 热稳定性 红外透过范围 

分 类 号：TQ171[化学工程—玻璃工业]