水热法制备多级结构ZnO微球及其电池性能  

Perparation of Hierarchical Zinc Oxide Microspheres by Hydrothermal Method and Its Photoelectric Property

作　　者：王艳香[1] 高智丹 范学运[1] 杨志胜[1] 黄丽群[1] 孙健[1] 

机构地区：[1]景德镇陶瓷学院材料科学与工程学院,江西景德镇333001

出　　处：《硅酸盐学报》2016年第1期29-36,共8页Journal of The Chinese Ceramic Society

基　　金：国际科技合作专项(2013DFA51000);国家自然科学基金项目(51102122);江西省对外科技合作项目(2010EHA02700)

摘　　要：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%。Hierarchical zinc oxide （ZnO） microspheres were prepared by a hydrothermal method with urea and zinc nitrate as raw materials. The microspheres were applied in dye sensitized solar cell（DSSC）. The effects of mole ratio of urea and zinc nitrate, preparation process of ZnO slurry and thickness of ZnO film on the photoelectric properties of DSSCs were investigated. The phase composition and morphology of samples were characterized by X-ray diffraction and scanning electron microscopy, respectively. The photoelectric transmission performance of DSSCs was analyzed by electro-chemical workstation. The results show that the photoelectric conversion efficiency of 4.82% is obtained under optimum process conditions. The optimum process conditions are the mole ratio of urea and zinc nitrate of 3：1 and the slurry preparation by ultrasound and ball milling.

关 键 词：染料敏化太阳能电池 氧化锌微球 多级结构 

分 类 号：TQ174[化学工程—陶瓷工业]