尿素掺杂的氧化锌薄膜作为高效倒置聚合物太阳能电池的电子传输层
Urea-Doped ZnO Films as the Electron Transport Layer for High Efficiency Inverted Polymer Solar Cells.
作者信息
Wang Zongtao, Wang Zhongqiang, Zhang Ruqin, Guo Kunpeng, Wu Yuezhen, Wang Hua, Hao Yuying, Chen Guo
机构信息
Key Laboratory of Interface Science and Engineering in Advanced Materials, Ministry of Education, Research Center of Advanced Materials Science and Technology, Taiyuan University of Technology, Taiyuan, China.
Key Laboratory of Advanced Display and System Applications, Ministry of Education, Shanghai University, Shanghai, China.
出版信息
Front Chem. 2018 Sep 7;6:398. doi: 10.3389/fchem.2018.00398. eCollection 2018.
In this paper, urea-doped ZnO (U-ZnO) is investigated as a modified electron transport layer (ETL) in inverted polymer solar cells (PSCs). Using a blend of Poly{4,8-bis[(2-ethylhexyl)oxy] benzo [1,2-b:4,5-b'] dithiophene-2,6-diyl-alt-3-fluoro-2-[(2-ethylhexyl)carbonyl] thieno [3,4-b] thiophene-4,6-diyl}(PTB7), and [6,6]-phenyl-C71-butyric acid methyl ester (PCBM) as light absorber, a champion power conversion efficiency (PCE) of 9.15% for U-ZnO ETL based PSCs was obtained, which is 15% higher than that of the pure ZnO ETL based PSCs (7.76%). It was demonstrated that urea helps to passivate defects in ZnO ETL, resulting in enhanced exciton dissociation, suppressed charge recombination and efficient charge extraction efficiency. This work suggests that the utilization of the U-ZnO ETL offer promising potential for achieving highly efficient PSCs.
在本文中，对尿素掺杂的氧化锌（U-ZnO）作为倒置聚合物太阳能电池（PSC）中的改性电子传输层（ETL）进行了研究。使用聚{4,8-双[(2-乙基己基)氧基]苯并[1,2-b:4,5-b']二噻吩-2,6-二基-alt-3-氟-2-[(2-乙基己基)羰基]噻吩并[3,4-b]噻吩-4,6-二基}(PTB7)和[6,6]-苯基-C71-丁酸甲酯(PCBM)的混合物作为光吸收剂，基于U-ZnO ETL的PSC获得了9.15%的最佳功率转换效率（PCE），比基于纯ZnO ETL的PSC（7.76%）高15%。结果表明，尿素有助于钝化ZnO ETL中的缺陷，从而增强激子解离、抑制电荷复合并提高电荷提取效率。这项工作表明，U-ZnO ETL的应用为实现高效PSC提供了有前景的潜力。
Zotero 插件