摘要
采用热基底喷涂法分别制备了FA_(0.85)MA_(0.15)PbI_3和(FAPbI_3)_(0.85)(MAPbBr_3)_(0.15)两种混合阳离子钙钛矿薄膜,对两种薄膜进行了扫描电镜(SEM)、X-射线衍射(XRD)、紫外-可见光吸收光谱(UV-Vis)测试表征。结果表明,该方法制备的混合阳离子钙钛矿薄膜平整致密,FA0.85MA0.15Pb I3结晶性更好,并且吸收带边和吸收强度更大。将两种薄膜组装成平板太阳能电池,对电池的光电性能和稳定性进行了分析。结果表明,FA_(0.85)MA_(0.15)PbI_3 PSCs光电转换效率为13.21%,(FAPbI_3)_(0.85)(MAPbBr_3)_(0.15) PSCs光电转换效率为12.08%,并且(FAPbI_3)_(0.85)(MAPbBr_3)_(0.15) PSCs在放置80 d后,性能基本无变化,表明喷涂法制备(FAPbI_3)_(0.85)(MAPbBr_3)_(0.15) PSCs具有较好的稳定性。
In this work, FA0.85MA0.15PbI3 and （FAPbI3）0.85（MAPbBr3）0.15 mixed cation perovskite films were prepared via spray deposition method. Properties of these two films were characterized by emission scanning electron microscope （SEM）, X-ray diffraction （XRD） and UV visible light absorption spectroscopy （UV-Vis）. Results showed that films prepared by spray deposition were uniform and dense. Compared with FA0.85MA0.15PbI3, the crystallinity of FA0.85MA0.15PbI3 perovskite films was higher, and its light absorption property was more superior. The fabricated planar solar cells can achieved a power conversion efficiency （PCE） of 13.21% with FA0.85MA0.15PbI3 perovskite layer, and 12.08% with （FAPbI3）0.85（MAPbBr3）0.15 perovskite layer. The PCE of （FAPbI3）0.85（MAPbBr3）0.15 PSCs was nearly unchanged after 80 days, which was much more stable than FA0.85MA0.15PbI3 PSCs.
作者
高凯
毕卓能
张晓清
徐雪青
朱艳青
肖秀娣
詹勇军
徐刚
GAO Kai;BI Zhuo-neng;ZHANG Xiao-qing;XU Xue-qing;ZHU Yan-qing;XIAO Xiu-di;ZHAN Yong-jun;XU Gang(Guangzhou Institute of Energy Conversion,Chinese Academy of Sciences,Guangzhou 510640;University of Chinese Academy of Sciences,Beijing 100049,China)
出处
《新能源进展》
2018年第4期333-338,共6页
Advances in New and Renewable Energy
基金
国家自然科学基金项目(21273241)
广东省协同创新与平台环境建设专项资金项目(2014A050503051)
关键词
钙钛矿
太阳电池
混合阳离子
喷涂法
稳定性
perovskite
solar cells
mixed cation
spray deposition method
stability
