MoO_3微纳米片的简单制备及其光致发光性能  

Facile synthesis and photoluminescence properties of MoO_3 micro-sheets

作　　者：钟明龙[1,2] 

机构地区：[1]江西理工大学工程研究院,江西赣州341000 [2]华南理工大学材料科学与工程学院,广州510640

出　　处：《功能材料》2015年第3期3139-3143,共5页Journal of Functional Materials

基　　金：江西省教育厅青年科学基金资助项目(GJJ14442);江西理工大学博士启动基金资助项目(jxxjbs13017)

摘　　要：采用简单热氧化蒸发沉积法在ITO 玻璃基片上制备了大面积MoO3 微纳米片.制备出的微纳米片具有良好晶体结构,其长度、宽度和片层厚度分别可达100,1-5μm 和约100nm;微纳米片沿[001]方向生长,这是因为晶体各方向键合能的不同而具有不同的生长速度,其形成过程遵循气G固生长机制.光致发光谱显示室温下MoO3 微纳米片同时具有紫光发射峰、蓝光发射峰和绿光发光带,发射光强度随氧化沉积温度升高而增大,这是由于温度升高,微纳米片缺陷增加导致的.Single-crystalline lamellarα-MoO3 micro-sheets were synthesized on ITO glass substrates by a simple thermal evaporation method.The micro-sheets with a length and a width of 100 and 1-5μm,were composed of nanosized layers with thickness about 100 nm.The common vapor-solid (VS)mechanism is adopted for the growth of lamellarα-MoO3 micro-sheets,which grow along [001]direction.The room temperature photolumi-nescence (PL)properties of theα-MoO3 micro-sheets were investigated.The emission intensity increased with deposition temperature increases due to the increasing defect density for the micro/nanostructures.

关 键 词：MOO3 纳米结构 热蒸发 生长机制 光致发光 

分 类 号：TB383[一般工业技术—材料科学与工程]