Inverted polymer solar cells with a solution-processed zinc oxide thin film as an electron collection layer

作     者：YANG TingBin QIN DongHuan LAN LinFeng HUANG WenBo GONG Xiong PENG JunBiao CAO Yong 

作者机构：Department of Polymer Engineering College of Polymer Science and Engineering The University of Akron Akron OH 44325 USA State Key Laboratory afLuminescence Physics and Chemistry South China University of Technology Guangzhou 510640 China 

出 版 物：《Science China Chemistry》 (中国科学（化学英文版）)

年 卷 期：2012年第55卷第5期

页      面：755-759页

核心收录：

学科分类：080903[工学-微电子学与固体电子学] 0809[工学-电子科学与技术（可授工学、理学学位）] 08[工学] 080501[工学-材料物理与化学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 

基　　金：the Joint Researh Fund for Overseas Chinese Scholars, and the National Natural Science Foundation of China (50828301) the NSFC (50990065, U0634003, and 60937001) MOST (2009CB603601) 973 project (2009CB623604) 

主　　题：氧化锌薄膜 太阳能电池 聚合物 倒置 集层 电子 ZnO薄膜 电源转换效率 

摘      要：A solution-processed zinc oxide (ZnO) thin film as an electron collection layer for polymer solar cells (PSCs) with an inverted device structure was investigated. Power conversion efficiencies (PCEs) of PSCs made with a blend of poly(3-hexylthiophene) (P3HT) and [6,6]-phenyl C61-butyric acid methyl ester (PCBM) are 3.50% and 1.21% for PSCs with and without the ZnO thin film, respectively. Light intensity dependence of the photocurrent and the capacitance-voltage measurement demonstrate that the increased PCEs are due to the restriction of the strong bimolecular recombination in the interface when a thin ZnO layer is inserted between the polymer active layer and the ITO electrode. These results demonstrate that the ZnO thin film plays an important role in the performance of PSCs with an inverted device structure.