期刊
MATERIALS RESEARCH BULLETIN
卷 166, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.materresbull.2023.112345
关键词
Perovskite solar cell; Ionic liquid; Additive; 1-ethyl-3-methylimidazolium chloride
In this work, the introduction of the ionic liquid 1-ethyl-3-methylimidazolium chloride into the triple-cation perovskite light absorption layer improves the crystallinity of the perovskite film, reduces pinholes and defects, and efficiently restrains nonradiative recombination loss, thus accelerating carrier extraction. The device modified with 1-ethyl-3-methylimidazolium chloride achieves a significantly higher power conversion efficiency of 21.54% compared to the control device (18.12%). This work demonstrates the potential of 1-ethyl-3-methylimidazolium chloride as an additive for high-performance perovskite solar cells.
Although perovskite solar cells have made remarkable progress, the record device efficiency still lags far behind the theoretical limit efficiency. In this work, the ionic liquid, 1-ethyl-3-methylimidazolium chloride, is introduced into the triple-cation perovskite light absorption layer. The perovskite film with optimal amount of 1ethyl-3-methylimidazolium chloride increases crystallinity, decreases pinholes and reduces defects density. As a result, the nonradiative recombination loss is efficiently restrained, accelerating the carrier extraction. The device modified with 1-ethyl-3-methylimidazolium chloride acquires a power conversion efficiency of 21.54%, which is considerably higher than that of the control device (18.12%). This work demonstrates that 1-ethyl-3methylimidazolium chloride is a promising ionic liquid additive for high-performance perovskite solar cells.
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