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采用电化学方法在磁控溅射方法生长的ZnO薄膜上生长垂直于衬底排列的ZnO纳米柱。ZnO薄膜的作用主要是为ZnO纳米柱的生长提供同质外延层。电化学生长的ZnO纳米柱具有良好的晶体质量和发光性能。通过研究其变温发光光谱可以确定其紫外发光峰来自于带边激子的辐射复合。此种方法生长的ZnO纳米柱在场发射显示、蓝紫色和白光发光二极管方面有潜在的应用前景。
ZnO nanorods perpendicular to the substrate were grown on ZnO thin films grown by magnetron sputtering method by electrochemical method. The main function of ZnO thin films is to provide homoepitaxial layers for the growth of ZnO nanorods. Electrochemically grown ZnO nanorods have good crystal quality and luminescent properties. By studying its temperature-dependent luminescence spectrum, it can be confirmed that the UV-luminescence peak comes from the radiative recombination with excitons. ZnO nanorods grown by this method have potential applications in field emission display, blue-purple and white light-emitting diodes.