锌
光致发光
扫描电子显微镜
材料科学
六亚甲基四胺
化学浴沉积
沉积(地质)
制作
分光光度法
透射率
氯化物
衍射
化学工程
分析化学(期刊)
化学
光电子学
光学
冶金
复合材料
有机化学
色谱法
医学
古生物学
替代医学
物理
病理
沉积物
工程类
生物
作者
Qing Guo,Qiang Ma,Bowen Zhang,Yuxiang Dai,Yang Qi
摘要
Using zinc chloride as an additive assisted with conventional solutions of zinc acetate dihydrate and hexamethylenetetramine, the synthesis of ZnO films by chemical bath deposition was investigated and characterized by x-ray diffraction, field emission scanning electron microscopy, atomic force microscope, photoluminescence (PL) and UV-Vis spectrophotometry. ZnO films with (0002), (101̄2), (112̄2), (112̄0), and (101̄0) preferential growth orientation were prepared by changing the concentration of the introduced zinc chloride. The results of UV-Vis spectrophotometry show that the ZnO films with different preferential growth orientations have optical transmittance of more than 80% in the visible light region. Results from PL show that compared to the typical polar (0002) preferential growth orientation of ZnO, other films with different preferential growth orientations have different visible emissions. It was also confirmed that the concentration of Cl− can affect the defects and preferred orientations of ZnO films. This work enriches the fabrication of ZnO films with different preferential growth orientations and also provides new ideas for the fabrication of ZnO-based transparent nanodevices.
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