作　　者： ; ; ; ; ;

机构地区： 广东工业大学材料与能源学院

出　　处： 《可再生能源》 2011年第3期115-119,共5页

摘　　要： 采用低温水溶液法制备ZnO微米棒;ZnO微米棒与TiO2纳米粉以不同比例混合,制备复合浆料;采用刮涂法把复合浆料涂敷在透明导电玻璃上,制备ZnO/TiO2复合薄膜光阳极。通过电池的I-U特性和电化学阻抗谱测试,研究ZnO微米棒与TiO2纳米粉的比例对电池性能的影响。结果表明:当ZnO与TiO2的质量比为1∶1时,DSSC的效率最高,此时的光电转换效率比纯TiO2电池的效率提高了31%。这主要得益于ZnO微米棒更高的光利用率和良好的电子转移特性。 The ZnO microrods were prepared by low temperature solution-phase method.ZnO/TiO2 composites photoanodes were prepared on FTO with pastes of different proportions of ZnO microrods and TiO2 nanopowders by doctor-blade method.The effect of the relative microwire/nanoparticle ratio on the performance of solar cells were systematically investigated by I-U curves and electrochemical impedance spectroscope.The results show that the solar conversion efficiency of the dye sensitized solar cells after the addition of ZnO microrods（50%） was increased by about 30% by comparison to that of the pure TiO2 photoanode.This is mainly because of the ZnO microrods having higher photon absorption and a good electron transfer properties.

关 键 词： 染料敏化太阳能电池 复合光阳极 电化学阻抗谱 低温水溶液法

领　　域： [动力工程及工程热物理] [电气工程]