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

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

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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 PbI2 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 crys-tallinity,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 cm2 module.

4-tert-butylpyridineFilm crystallizationPerovskite solar cellsPower conversion efficiencyStability improvement

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

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College of Chemistry and Materials Engineering,Anhui Science and Technology University,Bengbu 233000,Anhui,China

Anhui Province Quartz Sand Purification and Photovoltaic Glass Engineering Research Center,Chuzhou 233100,Anhui,China

Triumph Photovoltaic Materials Co.Ltd,Bengbu,Anhui,China

National Laboratory of Solid State Microstructures,School of Physics,Nanjing University,Nanjing 210009,Jiangsu,China

JinkoSolar Holding Co.Ltd,Haining,Zhejiang,China

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Foundation of Anhui Science and Technology UniversityAnhui Science and Technology University's Student Innovation and Entrepreneurship Training ProgramAnhui Science and Technology University's Student Innovation and Entrepreneurship Training ProgramKey Project of Natural Science Research in Anhui Science and Technology UniversityChuzhou Science and Technology ProjectAnhui Province Key Research and Development ProgramNatural Science Research Project of Anhui Educational CommitteeOpening Project of State Key Laboratory of Advanced Technology for Float GlassOpening Project of State Key Laboratory of Advanced Technology for Float Glass

HCYJ202201S2023108791152023108790532021ZRZD072021GJ002202304a050200852023AH0518772020KF062022KF06

2024

10.1016/j.jechem.2024.01.063

能源化学
中国科学院大连化学物理研究所 中国科学院成都有机化学研究所

能源化学

CSTPCDEI
影响因子：0.654
ISSN：2095-4956
年,卷(期)：2024.93(6)
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