摘要
在过去的10年,钙钛矿太阳能电池由于其成本低、制备工艺简单以及性能高等优点得到了广泛的关注.自2009年起,钙钛矿太阳能电池的光电转换效率已经从3.8%升至25.5%.而钙钛矿太阳能电池的不稳定性是制约其商业化的主要原因.离子液体是一种含大型不对称有机阳离子和有机或无机阴离子的化合物,具有高离子导电性、热化学稳定性和电化学稳定性.将离子液体作为添加剂引入到钙钛矿太阳能电池中,可以有效地钝化卤化物空位缺陷,抑制离子迁移,促进钙钛矿薄膜晶粒生长,调节能级结构,从而有效提升钙钛矿太阳能电池的光伏性能及稳定性.本文详细介绍了离子液体的定义、性质及种类,并从离子液体种类的角度出发,根据不同种类离子液体的特点,综述了离子液体及其复合材料在钙钛矿太阳能电池中的应用,并提出离子液体在高效稳定钙钛矿太阳能电池中的应用及展望.
In the past decade,perovskite solar cells have attracted extensive attention due to the low cost,simple preparation process and high photovoltaic performance.Since 2009,the photoelectric conversion efficiency of perovskite solar cells has increased from 3.8%to 25.5%.The main reason that restricts the commercialization of perovskite solar cells is its instability.Ionic liquid is a kind of compound containing large asymmetric organic cations and organic or inorganic anions,which owns the advantages of high ionic conductivity,thermochemical stability and electrochemical stability.Introducing ionic liquids as additives into perovskite solar cells can effectively passivate halide vacancy defects,inhibit ion migration,promote the grain growth of perovskite films and adjust the energy level structure,so as to effectively improve the photovoltaic performance and stability of perovskite solar cells.In this review,the definition,properties and types of ionic liquids were introduced in detail.From the perspective of the types of ionic liquids and according to the characteristics of different kinds of ionic liquids,the application of ionic liquids and their composites in perovskite solar cells was summarized,and the prospect of the application of ionic liquids to achieve efficient and stable perovskite solar cells was put forward.
作者
杨丽丽
宋羽洹
薛彤鑫
张乐
王英杰
YANG Li-li;SONG Yu-huan;XUE Tong-xin;ZHANG Le;WANG Ying-jie(College of Physics,Jilin Normal University,Siping 136000,China)
出处
《吉林师范大学学报（自然科学版）》
2022年第3期6-24,共19页
Journal of Jilin Normal University:Natural Science Edition
基金
国家自然科学基金项目(22075101)
吉林省科技发展计划项目(20200801032GH)
吉林省教育厅“十三五”科学技术研究项目(JJKH20210440KJ)。
