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采用水热法,以尿素和硝酸锌为原料,制备了具有多级结构的ZnO微球并将其应用于染料敏化太阳能电池中。主要研究尿素和硝酸锌摩尔比、浆料制备工艺和膜厚对电池性能的影响。采用X射线衍射、扫描电子显微镜对所制备的ZnO粉体和膜的微观结构进行了表征,采用电化学工作站分析了电池的电子传输性能,并测试了电池的电流一电压(I-V)曲线。结果表明:当尿素与硝酸锌摩尔比为3:1时,采用先漩涡超声再球磨工艺制备的浆料,所得的ZnO基电池光电性能较好,光电转换效率达到4.82%。
Using hydrothermal method, using urea and zinc nitrate as raw materials, ZnO microspheres with multi-stage structure were prepared and applied to dye-sensitized solar cells. The main research urea and zinc nitrate molar ratio, slurry preparation process and the thickness of the battery performance. The microstructure of the prepared ZnO powders and films was characterized by X-ray diffraction and scanning electron microscopy. The electrochemical performance of the cell was analyzed by electrochemical workstation, and the current-voltage (I-V) curve of the cell was tested. The results show that when the mole ratio of urea to zinc nitrate is 3: 1, the ZnO prepared by the vortex ultrasonic re-milling process has good photoelectric properties and the photoelectric conversion efficiency reaches 4.82%.