期刊
OPTICAL MATERIALS
卷 139, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.optmat.2023.113782
关键词
Polymer solar cells; Benzyl viologen dichloride; Zinc oxide; Electron transfer layer; Power conversion efficiency
Researchers developed an organic-inorganic hybrid electron transport layer (ETL) using benzyl viologen dichloride (BV-2Cl) as a dopant for the preparation of sol-gel ZnO precursor solution. Inverted polymer solar cells (I-PSCs) based on PTB7-Th:PC71BM with hybrid ZnO:BV-2Cl as ETL showed significantly improved photovoltaic performance. The use of BV-2Cl as a dopant for ZnO ETL represents a facile and efficient method for the fabrication of high-performance I-PSCs.
An organic-inorganic hybrid electron transport layer (ETL) is developed using benzyl viologen dichloride (BV-2Cl) as a dopant for the preparation of sol-gel ZnO precursor solution. The inverted polymer solar cells (I-PSCs) based on PTB7-Th:PC71BM were prepared by introducing hybrid ZnO:BV-2Cl as ETL, and the effect of BV-2Cl on the photovoltaic performance of PSCs was closely investigated. Consequently, the device with hybrid ZnO:BV-2Cl (1% wt%) as ETL achieves the power conversion efficiency (PCE) of 9.31%, which is 16.5% more efficient than the device using pure ZnO as ETL. As the results indicate, hybrid ZnO:BV-2Cl films can modulate the interfacial compatibility of the hydrophilic surface of conventional ZnO films, hence enhancing charge transport and exciton dissociation. Our results indicate that using BV-2Cl as a dopant for the preparation of ZnO ETL is a facile and efficient method of fabricating high-performance I-PSCs.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据