个人信息
Personal information
教授 博士生导师 硕士生导师
性别：男
在职信息：在职
所在单位：武汉光电国家研究中心
学历：研究生(博士)毕业
学位：理学博士学位
毕业院校：武汉大学
学科：材料化学有机化学
材料学
材料物理与化学
物理化学
曾获荣誉：
2023 2023年度湖北省博士后卓越人才
2023 2023年度湖北省博士后卓越人才
2023 首届湖北省博士后创新创业大赛金奖
2018 国家级人才工程青年项目入选者
2017 湖北省人才工程青年项目入选者
2015 洛桑联邦理工大学校长特别奖
2014 中国百篇优秀论文
论文类型：期刊论文
通讯作者：Xiong Li
发表刊物：Nature Energy
收录刊物：SCI
学科门类：工学
一级学科：光学工程
文献类型：J
DOI码：10.1038/s41560-023-01249-0
发表时间：2023-04-17
影响因子：67.439
摘要：Perovskite solar cells have reached a power conversion efficiency over 25%, and the engineering of the interface between the perovskite and hole transport layer (HTL) has been crucial to achieve high performance. Here we design a bifunctional molecule CBz-PAI with carbazole-triphenylamine and phenylammonium iodide units to passivate defects at the perovskite/HTL interface. Owing to a favourable energy level alignment with the perovskite, the CBz-PAI acts as a hole shuttle between the perovskite layer and the HTL. This minimizes the difference between the quasi-Fermi level splitting of the perovskite, or ‘internal’ Voc, and the external device Voc, thus reducing voltage losses. As a result, solar cells incorporating CBz-PAI reach a stabilized power conversion efficiency of 24.7% and maintain 92.3% of the initial efficiency after 1,000 h under damp heat test (85 °C and 85% relative humidity) and 94.6% after 1,100 h under maximum power point-tracking conditions.