浸泡法制备MA_(1-x)FA_xPbI_3钙钛矿太阳能电池  

Preparation of MA_(1-x)FA_xPbI_3 Perovskite Solar Cells by Immersion Process

作　　者：刘晓倩[1] 刘寒 魏香凤[1] 刘节华[1] LIU Xiao-qian;LIU Han;WEI Xiang-feng;LIU Jie-hua(Future Energy Laboratory,School of Materials Science and Engineering,Hefei University of Technology,Hefei 230009,Chin)

机构地区：[1]合肥工业大学材料科学与工程学院未来能源实验室,合肥230009

出　　处：《齐鲁工业大学学报》2018年第2期1-7,共7页Journal of Qilu University of Technology

基　　金：国家自然科学基金(21303038)

摘　　要：自钙钛矿太阳能电池问世以来,因其成本低、制作工艺简单、光电转化效率高等优点,成为太阳能电池领域的研究热点。对钙钛矿太阳能电池的核心——钙钛矿层优化的研究,是电池光电转化效率提升的关键。通过浸泡法,获得MA-FA掺杂的钙钛矿层,使电池的光电转化效率相对参比电池提高了25%,最高达到15.2%。此外,这种工艺还能够在开路电压不明显降低的情况下,显著提升短路电流。FA+掺杂极大地改善了钙钛矿薄膜的结晶性和表面形貌,既有利于电子和空穴的传输,又对其禁带宽度有良好的调节作用。Owing to its low cost,simple manufacturing process,and high photoelectric conversion efficiency,perovskite solar cell has attracted extensive attention worldwide in less than a decade.Perovskite film is the key to obtain high-efficient perovskite solar cells. In our work,FA＋doped MAPb I3 perovskite layer was obtained by a facile two-step immersing method. An optimized efficiency of 15. 2%was achieved for the MA1-xFAxPb I3 based cell,25% higher than that of the MAPb I3 based cell.Furthermore,short-circuit current was improved obviously without reducing the open circuit voltage. We suppose that the doping of FA＋is not only beneficial to the transmission of electrons and holes,but also has good regulation of band gap,thus significantly improves the crystallinity and surface morphology of perovskite films.

关 键 词：钙钛矿太阳能电池 掺杂 钙钛矿层 禁带宽度 

分 类 号：TM914.4[电气工程—电力电子与电力传动]