高等学校化学学报2024，Vol.45Issue(5)：92-101,10.DOI:10.7503/cjcu20240044
基于氨基酸衍生物盐酸盐添加剂制备高效稳定的钙钛矿太阳能电池
Preparation of Efficient and Stable Perovskite Solar Cells Based on Amino Acid Derivative Hydrochloride Additives
摘要
Abstract
The rapid development of perovskite solar cells(PSCs)has made them one of the most competitive photo-voltaic devices in the field of new energy.However,there is still great room for improvement in photoelectric conversion efficiency(PCE)and stability.Here,an amino acid derivative hydrochloride was introduced as an additive in perovskite,D-phenylglycine methyl ester hydrochloride(PGMECl).PGMECl contains a benzene ring,an ester group,—NH3+ terminal and Cl-ions.The multiple functional groups worked together to react with uncoordinated Pb2+,passivating defects in perovskite.The perovskite grains became denser,surface roughness decreased,and non-radiative recombination of charge carriers was reduced.By adjusting the energy level arrangement,it is more suitable for charge transfer in inverted perovskite solar cells.The results showed that the champion power conversion efficiency(PCE)of PGMECl modification device is 21.04%,which is much higher than that of control devices(17.79%).The decrease in hysteresis effect also indicates a decrease in ion migration.Under unencapsulated conditions,devices containing PGMECl additives can still maintain a PCE of 70%of the initial efficiency after aging in the dark in air[(40±5)%relative humidity(RH)]for 1000 h,while the efficiency of the basic device decreases to 50%after 500 h of storage.关键词
D-苯基甘氨酸甲酯盐酸盐/钙钛矿太阳能电池/功率转换效率/稳定性Key words
D-phenylglycine methyl ester hydrochloride/Perovskite solar cell/Power conversion efficiency/Stability分类
化学化工引用本文复制引用
胡蝶,孙庆,孟祥歆,凌锦翔,成彬,康博南..基于氨基酸衍生物盐酸盐添加剂制备高效稳定的钙钛矿太阳能电池[J].高等学校化学学报,2024,45(5):92-101,10.基金项目
吉林省科技发展计划重点研究项目(批准号:20210203017SF)、有机光电子与分子工程教育部重点实验室开放基金(批准号:5322300122)和超分子结构与材料国家重点实验室开放项目(批准号:sklssm201809)资助. Supported by the Key Research and Development Projects of Science and Technology Development Plan of Jilin Province,China(No.20210203017SF),the Open Fund of the Key Lab of Organic Optoelectronics and Molecular Engineering of Ministry of Education,China(No.53223000122)and the Open Project of the State Key Laboratory of Supramolecular Structure and Materials,China(No.sklssm201809). （批准号:20210203017SF）
