MoO3界面修饰提升刮涂钙钛矿太阳电池性能
MoO3 INTERFACE MODIFICATION IMPROVING PERFORMANCE OF BLADE COATED PEROVSKITE SOLAR CELLS
果馨 1姚鑫 1刘祖刚1
作者信息
- 1. 中国计量大学光学与电子科技学院,杭州 310018
- 折叠
摘要
在空穴传输层Spiro-OMeTAD和Ag电极之间引入三氧化钼(MoO3)空穴修饰层,并研究其对空气中刮涂的钙钛矿太阳电池光伏性能的影响,结合导电性测试、稳态光致发光光谱和水接触角测试等探究其影响机制.实验和测试结果表明MoO3可提升空穴传输能力和减小界面电阻,同时对下方的Spiro-OMeTAD及钙钛矿起到保护作用,可减缓空气中水氧侵蚀.基于MoO3界面修饰层的在空气中刮涂制备的钙钛矿太阳电池光电转换效率由15.14%提升至18.30%,尤其是填充因子的平均值由60%提升至76%,电池稳定性得到改善,未封装电池在400 h后仍保持初始效率的90%.
Abstract
In this study,the influence of introducing MoO3 hole modification layer between hole transport layer Spiro-OMeTAD and Ag electrode on the photovoltaic performance of the blade-coated perovskite solar cell device was investigated.The mechanism was examined through a series of tests encompassing electrical conductivity measurement,steady-state photoluminescence spectra,contact angle with water,etc.The results of experiments and tests indicate that MoO3 can effectively improve hole transport capability and reduce interfacial resistance while protecting the underlying Spiro-OMeTAD and perovskite layers from water and oxygen degradation in the air.Based on MoO3 interface modification layers,the blade-coated perovskite solar cell device's photovoltaic conversion efficiency increases from 15.14%to 18.30%,especially the average fill factor rises from 60%to 76%.At the same time,the stability of devices is also improved,with the unpackaged device still maintaining 90%of it initial efficiency after 400 hours.
关键词
钙钛矿太阳电池/三氧化钼/热蒸镀/界面修饰/空穴传输/稳定性Key words
perovskite solar cells/molybdenum oxide/thermal vapor deposition coating/interface modification/hole transport/stability引用本文复制引用
出版年
2024
NETL
NSTL
万方数据