Inverted polymer solar cells with a solution-processed zinc oxide thin film as an electron collection layer |
| |
| Authors: | TingBin Yang DongHuan Qin LinFeng Lan WenBo Huang Xiong Gong JunBiao Peng Yong Cao |
| |
| Affiliation: | 1. Department of Polymer Engineering, College of Polymer Science and Engineering, The University of Akron, Akron, OH, 44325, USA
2. State Key Laboratory of Luminescence Physics and Chemistry, South China University of Technology, Guangzhou, 510640, China
|
| |
| Abstract: | 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. |
| |
| Keywords: | polymer solar cells inverted device structure ZnO thin films |
| 本文献已被 CNKI SpringerLink 等数据库收录！ |
|
