电化学自组装法制备透明 ZnO 薄膜及性能研究

Journal of Xinyang Normal University (Natural Science Edition)(2014)

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Abstract
以低浓度的Zn(NO3)2为电解液、KCl为支持电解质,采用电沉积自组装法在氧化铟锡(ITO)玻璃基片上成功制备了尺寸可控、性能优异、具有强的C轴择优取向生长的纳米柱ZnO薄膜;并进一步获得了六方晶体纳米结构的ZnO薄膜的优化沉积工艺.同时,结合X射线衍射(XRD)、扫描电镜测试(SEM)、透射电镜(TEM)、紫外吸收光谱(UV-vis)等测试手段对薄膜的形貌、晶形及光学性能进行了系统表征.结果表明,制备的ZnO薄膜为六方纤锌矿结构,且沿[002]方向的择优生长趋势明显、物相纯正;该薄膜的透射率最大值可达75%,禁带宽度接近于3.28 eV.
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Key words
ZnO films,cathodic electrodeposition method,electrolyte concertration
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