MoO_(3)界面修饰提升刮涂钙钛矿太阳电池性能  

MoO_(3)INTERFACE MODIFICATION IMPROVING PERFORMANCE OF BLADE COATED PEROVSKITE SOLAR CELLS

作　　者：果馨 姚鑫 刘祖刚 Guo Xin;Yao Xin;Liu Zugang(College of Optical and Electronic Technology,China Jiliang University,Hangzhou 310018,China)

机构地区：[1]中国计量大学光学与电子科技学院,杭州310018

出　　处：《太阳能学报》2024年第4期101-106,共6页Acta Energiae Solaris Sinica

基　　金：国家自然科学基金(62304213)。

摘　　要：在空穴传输层Spiro-OMeTAD和Ag电极之间引入三氧化钼(MoO_(3))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MoO_(3)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MoO_(3)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%。In this study,the influence of introducing MoO_(3)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 MoO_(3)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 MoO_(3)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 

分 类 号：TM914.4[电气工程—电力电子与电力传动]