Enhancing the crystallinity and stability of perovskite solar cells with 4-tert-butylpyridine induction for efficiency exceeding 24%  

作　　者：You Liu Lishuang Zheng Kuanxiang Zhang Kun Xu Weicheng Xie Jue Zhang Yulu Tian Tianyuan Liu Hanzhong Xu Ruoming Ma Wei Huang Jiahui Chen Jusheng Bao Chen Chen Yongsheng Zhou Xuchun Wang Junming Chen Jungan Wang 

机构地区：[1]College of Chemistry and Materials Engineering,Anhui Science and Technology University,Bengbu 233000,Anhui,China [2]Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center,Chuzhou 233100,Anhui,China [3]Triumph Photovoltaic Materials Co.Ltd,Bengbu,Anhui,China [4]National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210009,Jiangsu,China [5]JinkoSolar Holding Co.Ltd,Haining,Zhejiang,China

出　　处：《Journal of Energy Chemistry》2024年第6期1-7,I0001,共8页能源化学（英文版）

基　　金：financial support from various entities,including the Foundation of Anhui Science and Technology University[HCYJ202201];the Anhui Science and Technology University’s Student Innovation and Entrepreneurship Training Program[S202310879115,202310879053];the Key Project of Natural Science Research in Anhui Science and Technology University[2021ZRZD07];the Chuzhou Science and Technology Project[2021GJ002];the Anhui Province Key Research and Development Program[202304a05020085];the Natural Science Research Project of Anhui Educational Committee[2023AH051877];The Opening Project of State Key Laboratory of Advanced Technology for Float Glass[2020KF06,2022KF06]。

摘　　要：Perovskite solar cells(PSCs)have emerged as a promising photovoltaic technology because of their high light absorption coefficient,long carrier diffusion distance,and tunable bandgap.However,PSCs face challenges such as hysteresis effects and stability issues.In this study,we introduced a novel approach to improve film crystallization by leveraging 4-tert-butylpyridine(TBP)molecules,thereby enhancing the performance and stability of PSCs.Our findings demonstrate the effective removal of PbI_(2)from the perovskite surface through strong coordination with TBP molecules.Additionally,by carefully adjusting the concentration of the TBP solution,we achieved enhanced film crystallinity without disrupting the perovskite structure.The TBP-treated perovskite films exhibit a low defect density,improved crystallinity,and improved carrier lifetime.As a result,the PSCs manufactured with TBP treatment achieve power conversion efficiency(PCE)exceeding 24%.Moreover,we obtained the PCE of 21.39%for the 12.25 cm^(2)module.

关 键 词：4-tert-butylpyridine Film crystallization Perovskite solar cells Power conversion efficiency Stability improvement 

分 类 号：TM914.4[电气工程—电力电子与电力传动]