钙钛矿单晶的合成研究进展

Research Progress on Synthesis of Perovskite Single Crystal

钙钛矿材料优异的光电性能使钙钛矿太阳能电池成为目前发展速度最快的光伏技术之一。近期的研究发现无晶界的单晶钙钛矿薄膜拥有更低的缺陷密度、更高的载流子迁移率、更长的载流子复合寿命,并且还有较高的稳定性和更宽的光吸收范围,因此有望制备出更高效且更稳定的钙钛矿太阳能电池。本文简要介绍了单晶钙钛矿太阳电池的基本结构及其发展历程,着重介绍了有关单晶钙钛矿薄膜和块状单晶钙钛矿的制备方法,并且对不同方法制备的单晶钙钛矿太阳能电池的效率进行了比较,最后对单晶钙钛矿太阳能电池当前存在的问题以及未来发展进行了简要分析和展望。

The excellent photoelectric properties of perovskite materials make perovskite solar cells one of the fastest growing photovoltaic technologies.Recent studies have found that single crystal perovskite films without grain boundaries have lower defect density,higher carrier mobility,longer carrier recombination life,higher stability and wider range of light absorption.Therefore,it is expected to prepare more efficient and stable perovskite solar cells.This article briefly introduces the basic structure and development history of single crystal perovskite solar cells,and focuses on the preparation methods of single crystal perovskite films and bulk single crystal perovskites.Beside,the efficiency of single crystal perovskite solar cells prepared by different methods are compared.Finally,the current problems and future development of single crystal perovskite solar cells are briefly analyzed and prospected.