铋基[HC(NH_(2))_(2)]_(3)Bi_(2)I_(9)钙钛矿的合成及其光伏器件性能评价  

Preparation and Photovoltaic Devices Performance of Bismuth-based [HC(NH_(2))_(2)]_(3)Bi_(2)I_(9) Perovskite

作　　者：王恩来 吴炎淼 李心雨 陈君华 张大朋 闫浩然 WANG Enlai;WU Yanmiao;LI Xinyu;CHEN Junhua;ZHANG Dapeng;YAN Haoran(College of Chemistry and Materials Engineering,Anhui Scienceand Technology University,Fengyang 233100,China;Anhui Xinmin Glass Co.,Ltd.,Fengyang 233100,China)

机构地区：[1]安徽科技学院化学与材料工程学院,安徽凤阳233100 [2]安徽鑫民玻璃股份有限公司,安徽凤阳233100

出　　处：《安徽科技学院学报》2021年第1期71-77,共7页Journal of Anhui Science and Technology University

基　　金：安徽省博士后基金项目(2019B340);安徽省省级大学生创新创业训练计划项目(2018S10879017)。

摘　　要：目的:合成铋基[HC(NH_(2))_(2)]_(3)Bi_(2)I_(9)钙钛矿,并对其光伏器件性能进行评价。方法:以碘化铋和碘甲脒为原料,在N,N-二甲基甲酰胺和二甲基亚砜组成的混合溶剂中合成铋基[HC(NH_(2))_(2)]_(3)Bi_(2)I_(9)钙钛矿材料,考察不同工艺条件制备得到薄膜的晶相、形貌、光吸收等性能,并对组装的太阳能电池器件的光伏性能和稳定性进行评价。结果:基于所制备的钙钛矿薄膜组装的钙钛矿太阳能的开路电压为0.558 V,短路电流为0.864 mA/cm^( 2),填充因子为0.411,光电转化效率达到了0.198%。结论:铋基钙钛矿在空气中具有比铅基钙钛矿更好的稳定性,甲脒离子的引入有利于提高铋基钙钛矿的光伏性能。Objective:The bismuth-based[HC(NH_(2))_(2)]_(3)Bi_(2)I_(9) perovskite was prepared,and its photovoltaic devices performance was eveluated.Methods:Bismuth based[HC(NH_(2))_(2)]_(3)Bi_(2)I_(9) perovskite materials were synthesized from bismuth iodide and formamidinium iodide in a mixed solvent composed of N,N-dimethylformamide and dimethyl sulfoxide,the crystalline phase,morphology and light absorption properties of the films prepared by different process conditions were then investigated.The photovoltaic performance and stability of the assembled solar cells were finally evaluated.Results:The open circuit voltage of the perovskite solar energy assembled by the prepared perovskite thin films is 0.558 V,the short-circuit current is 0.864 mA/cm^( 2),and the filling factor is 0.411,the photoelectric conversion efficiency reaches 0.198%.Conclusion:Bismuth-based perovskite solar cells had better stability than lead-based solar cells in air.The formamidine ion was conducive to improving the photovoltaic performance of bismuth-based perovskite.

关 键 词：钙钛矿 铋基 薄膜 太阳能电池 

分 类 号：TM914.4[电气工程—电力电子与电力传动]