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Mo O 3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100 nm；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-固生长机制。光致发光谱显示室温下 Mo O 3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.
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