具有多级结构ZnO微球及其电池性能  

Propeties of Hierarchically Structured ZnO Microspheres and its Dye Sensitized Solar Cell

作　　者：王艳香[1] 钟蓉[1] 杨志胜[1] 范学运[1] 黄丽群[1] 李家科[1] 孙健[1] 

机构地区：[1]景德镇陶瓷学院,景德镇333001

出　　处：《中国陶瓷》2016年第2期10-15,共6页China Ceramics

基　　金：国际科技合作专项(2013DFA51000);国家自然科学基金(51102122);江西省对外科技合作项目(20122BDH80003)

摘　　要：采用醇热法,以醋酸锌(Zn(AC)_2·2H_2O)、一缩二乙二醇(C_4H_(10)O_3)和二水乙酸锂(Li(AC)_2·2H_2O)为原料制备了具有多级结构的ZnO微球。主要研究了ZnO浆料制备工艺和膜厚对电池性能的影响。采用XRD对ZnO粉进行物相分析、采用SEM对ZnO粉的形貌进行了表征,采用电化学工作站对电池的电化学性能进行了分析,并测试了电池的I-V曲线。结果表明:球磨时间3 h,膜厚为20μm条件下得到的电池性能最好,该电池的光电转换效率达到3.39%,开路电压Voc为0.60V,短路电流密度Jsc为8.66 m A/cm^2,填充因子FF为0.64。Hierarchically structured ZnO microspheres were prepared through alcohol thermal method by using zinc acetate, diethylene glycol and lithium acetate as raw materials. The effects of slurry preparation process and thickness of photoanode on the properties of the DSSCs were mainly studied. XRD and SEM were used to characterize the phase composition and morphology of the synthesized samples. Photocurrent-voltage curves （I-V curve） and electrochemical impedance spectroscopy （EIS） were given. ZnO hierarchy structure would be destroyed by milling while remain intact by vortex method. The DSSC assembled by photoanode with milling slurry for 3 h and 20 μm thickness of membrane achieved an optimum efficiency of 3.39%. In addition, the Voc, Jsc and FF was 0.60 V, 8.66 mA/cm2 and 0.64 respectively.

关 键 词：染料敏化太阳能电池 ZnO微球 醇热法 电池性能 

分 类 号：TQ174.75[化学工程—陶瓷工业]