新型层状结构SnO的合成、光学性质及其表面缺陷  

Synthesis,Optical Properties and Surface Defects of Novel Laminated SnO Structure

作　　者：崔永奎[1] 王凤平[1] 祖柏儿 李岩[1] 王子娅 李泉水[1] 

机构地区：[1]北京科技大学数理学院,北京100083

出　　处：《半导体光电》2015年第5期736-740,共5页Semiconductor Optoelectronics

基　　金：国家自然科学基金项目(61373072);国家重点科学仪器设备发展专项基金项目(2011YQ14014506;2011YQ14014507);中央高校基础科研业务费专项基金项目(FRF-BR-09-007A)

摘　　要：采用无模板水热法在温和的反应条件下成功合成了形貌结构均一的层状结构氧化亚锡（SnO）。利用X射线衍射（XRD）、场发射扫描电子显微镜（FESEM）和能量散射X射线探测器（EDX）对所合成样品的晶体结构、形貌结构和化学成分分别进行了表征。利用荧光光谱仪和显微拉曼光谱仪研究了所合成样品的光致发光（PL）光谱和拉曼散射谱。光致发光第一次观察到了所合成的氧化亚锡在较宽波长范围（350~550nm）内蓝紫光的发光带,分析认为这是由其表面的大量缺陷引起的,并结合拉曼光谱研究分析了其表面缺陷。此结构氧化亚锡的蓝光发光带可能在LED方面具有潜在应用。Laminated architectures of stannous oxide（SnO）with uniform morphology were successfully synthesized via template-free hydrothermal growth method under facile conditions.Crystal structures, morphology and chemical composition of as-synthesized samples were characterized by X-ray diffraction（XRD）,field-emission scanning electron microscopy（FESEM）and energy dispersive X-ray（EDX）spectrum,respectively,and optical properties investigations were performed on as-prepared SnO sample by Raman scattering spectrum and Photoluminescent（PL）spectrum.PL spectrum shows that a broad band of blue-violet（350~550nm）was observed for the first time,which is attributed to a large number of defects in the surface,and the surface defects are studied by Raman spectroscopy.The blue emission band has a good potential for LED applications.

关 键 词：氧化亚锡 水热法 光致发光 拉曼光谱 表面缺陷 

分 类 号：TB383[一般工业技术—材料科学与工程]