Al-doping effects on structure and optical properties of ZnO nanostructures
Al-doping effects on structure and optical properties of ZnO nanostructures
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DOI：
10.1016/j.matlet.2013.11.126
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发表时间：
2014-02
影响因子：
3
通讯作者：
Y. Li;Jian Meng
中科院分区：
文献类型：
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作者：
Y. Li;Jian Meng
采用均匀沉淀法制备了Al掺杂的ZnO（AZO）纳米粒子，并利用X射线衍射仪、扫描电镜、紫外可见分光光度计和红外光谱仪对其进行了表征。结果表明，AZO粒子为六方纤锌矿相。随着Al掺杂量的增加，颗粒尺寸变小。当Al掺杂量为5mol%时，薄膜的最小直径为20nm，随着掺杂量的增加，薄膜的带隙变宽，紫外吸收峰发生蓝移。当Al掺杂量为5mol%时，薄膜的紫外吸收率和可见光透过率分别为98%和90%。
Al-doped ZnO (AZO) nanoparticles are prepared by the homogeneous precipitation method, which were characterized by X-ray diffraction, scanning electron microscope, ultraviolet and visible spectrophotometer and an infrared spectrometer. It is found that the AZO particles are of hexagonal wurtzite phase. With increase of Al doping, the particle size become smaller. A minimum diameter of 20 nm is obtained doped with 5 mol% Al. The band gap is found to broaden with increasing dopant concentration, and the ultraviolet absorption peak appeared blue shift. When doped with 5 mol% Al, the ultraviolet absorption rate and the visible light transmittance are 98% and 90%, respectively.