【作者】 汪非凡； 董会； 潘金龙； 李经建； 李琦； 徐东升；

【Author】 Feifan Wang;Hui Dong;Jinlong Pan;Jingjian Li;Qi Li;Dongsheng Xu;College of Chemistry and Molecular Engineering, Peking University;

【机构】 北京大学化学与分子工程学院；

【摘要】 量子点敏化太阳能电池由于其理论效率高(44%)、制备工艺简单而受到人们的广泛关注,但其实际光电转换效率和稳定性依然有待提高。对电极对多硫电解液良好而稳定的电催化活性有助于提高电池效率和稳定性。本实验通过一步电化学沉积法在导电基底上制备了硫化铜分级纳米结构,并将其用作量子点敏化太阳电池对电极,得到了较铂对电极(2.85%)、硫化亚铜/黄铜对电极(4.08%)更高的光电转化效率(4.32%)和更优的稳定性。更多还原

【Abstract】 An ideal counter electrode, with high electrocatalytic activity, high performance stability and applicable fabrication simplicity, is essential to give full play to the advantages of quantum dot-sensitized solar cell(QDSSC) such as high theoretical efficiency and simple synthetic procedure. Herein, we report a facile one-step electrochemical deposition approach for the growth of hierarchical covellite(CuS) nanostructures on conductive glass substrates. The as-synthesized copper sulfide can be employed directly as a robust, low-cost and high-efficient counter electrode without any post-treatments in QDSSCs.更多还原