采用热蒸发氧化锌片的方法制备四针状ZnO晶须.并用X射线能谱仪(EDS)、X射线衍射仪(XRD)、傅里叶红外光谱仪(FTIR)、场发射扫描电子显微镜(FESEM)对ZnO晶须组成、结构和形貌进行了测试表征.结果表明:四针状ZnO晶须为六方纤锌矿结构;当前期升温速率为6c℃/min,保温温度为960 ℃,锌的投放量为5 g时,制得四针状ZnO晶须形貌均一规整,晶须针脚生长完全;光致发光(PL)谱图表明:四针状ZnO晶须有两处明显的荧光发射峰,390 nm附近的紫外发射峰由ZnO近带边激子跃迁引发,514 nm附近的绿光发射峰是表面态效应与氧空位电子引发的光生空穴效应共同作用的结果.
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