基于离子液晶的钙钛矿界面工程提升开路电压  

Perovskite Interface Engineering to Increase Open Circuit Voltage By Ionic Liquid Crystal

作　　者：胡可馨 于华 陈靖禹 HU Kexin;YU Hua;CHEN Jingyu

机构地区：[1]西南石油大学新能源与材料学院,四川成都610500

出　　处：《化工设计通讯》2024年第11期134-135,138,共3页Chemical Engineering Design Communications

摘　　要：钙钛矿器件衬底至关重要。自组装小分子层[2-(3,6-二甲氧基-9H-咔唑-9-基)乙基]膦酸修饰氧化镍后,表面与钙钛矿失配。通过离子液晶1-十二烷基-3-甲基咪唑四氟硼酸盐修饰埋底界面,改善界面接触,与碘化铅相互作用,提升晶体质量和极小化电压损失。钙钛矿太阳电池开路电压从1.10 eV提升到1.15 eV,光电转换效率从19.48%提升到20.81%。这为反型钙钛矿太阳电池的埋底界面工程提供了新的思路。The substrate of perovskite solar cells(PSC)is crucial.After modifying nickel oxide(hole transport layer)with the self-assembled small-molecule,surface by[2-(3,6-dimethoxy-9H-carbazol-9-yl)ethyl]phosphonic acid mismatched with perovskite.By modifying the buried interface,ionic liquid crystal(ILC),1-dodecyl-3-methylimidazolium tetrafluoroborate,improves interface contact,interacts with lead iodide,enhance s crystal quality and minimizes voltage loss.The open circuit voltage of PSC increased from 1.10 eV to 1.15 eV,and the power conversion efficiency increased from 19.48%to 20.81%.This provides a new approach for the buried interface engineering of inverted PSC.

关 键 词：反型钙钛矿太阳电池 离子液晶 埋底界面 晶体生长 开路电压 

分 类 号：G642.423[文化科学—高等教育学]