In this work, for the growth of ZnO (Zinc Oxide) nanorod thin films, the seed layer is prepared by sol-gel dip coating and spin coating methods. We studied the effect of seed layer on structural and optical properties of the ZnO nanorods. FESEM image revealed the difference between the growth of ZnO nanorods on spin and sol-gel dip coated seed layers. It has been observed that ZnO nanorods with uniform size and highly oriented along the c-axis have been grown on spin coated seed layer. HRTEM and Transmission electron microscopy study shows that the ZnO nanorods have an average length of 300 nm and the average diameter is 50 nm, the interplanner spacing is found to be d = 2.63 Å. The X-ray diffraction pattern revealed that the ZnO nanorods are of hexagonal structure. Absorption spectra showed that the ZnO nanorods exhibit UV absorption with absorption peak at 365 nm and the optical band gap has been found to be 3.23 eV. PL spectra indicated the presence of UV and visible emission lying in the range of 380–550 nm. ZnO nanorods based solar cells have been constructed using CdSe quantum dots.

在这项工作中，为生长ZnO（氧化锌）纳米棒薄膜，通过溶胶-凝胶浸涂和旋涂方法制备晶种层。我们研究了种子层对ZnO纳米棒的结构和光学性质的影响。FESEM图像揭示了在旋涂和溶胶-凝胶浸涂的种子层上ZnO纳米棒的生长之间的差异。已经观察到，具有均匀尺寸并且沿c轴高度取向的ZnO纳米棒已经在旋涂种子层上生长。HRTEM和透射电子显微镜研究表明，ZnO纳米棒的平均长度为300 nm，平均直径为50 nm，平面间距为d = 2.63Å。X射线衍射图表明，ZnO纳米棒具有六边形结构。吸收光谱表明，ZnO纳米棒表现出UV吸收，在365nm处具有吸收峰，并且发现光学带隙为3.23eV。PL光谱表明存在380-550 nm范围的紫外线和可见光。基于ZnO纳米棒的太阳能电池已经使用CdSe量子点构建。