摘要
在由溶胶凝胶法制备的纳米ZnO薄膜基底上,采用化学溶液沉积法制备了单分散、高度取向的ZnO纳米棒阵列膜.通过控制纳米ZnO薄膜的制备工艺,可以调节氧化锌纳米棒的直径.利用FESEM,TEM,HRTEM,SAED和XRD表征了氧化锌纳米棒阵列的形貌和晶体结构.ZnO纳米棒的室温PL谱具有很高的紫外带边发射峰,在可见光波段无发射峰,表明该方法制备的ZnO纳米棒晶体结构完整,晶体中O空位的浓度很低.
Monodispersed and well-aligned ZnO nanorod arrays have been synthesized by chemical solution deposition on spin-coated and preheated ZnO sol films. The diameter of ZnO nanorods was controllable by adjusting the process of nano-ZnO film substrates. The morphology and crystalline structures of ZnO nanorods were characterized by field emission scanning electron microscopy （FESEM）, transmission electron microscopy （TEM）, high-resolution transmission electron microscopy （HRTEM）, selected area electron diffraction （SAED） and X-ray diffraction （XRD）. The room temperature photoluminescence spectrum of the as-prepared ZnO nanorod arrays exhibits a strong UV emission at about 384 nm and no defects related visible emissions.
出处
《化学学报》
SCIE
CAS
CSCD
北大核心
2005年第18期1656-1660,共5页
Acta Chimica Sinica
基金
国家自然科学基金(No.50172043)资助项目.
