Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate

查看全文 作　　者：Jing [1]Dou;Yue [2]Ma;Xiuxiu [1]Niu;Wentao [2]Zhou;Xueyuan [1]Wei;Jie [1]Dou;Zhenhua [1]Cui;Qizhen [1]Song;Tinglu [1]Song;Huanping [2]Zhou;Cheng [1]Zhu;Yang [1]Bai;Qi [1]Chen

机构地区：[1]Experimental Centre for Advanced Materials,School of Materials Science and Engineering,Beijing Institute of Technology,Beijing 100081,China;[2]Beijing Key Laboratory for Theory and Technology of Advanced Battery Materials,Key Laboratory of Polymer Chemistry and Physics of Ministry of Education,BIC-ESAT,School of Materials Science and Engineering,Peking University,Beijing 100871,China

出　　处：《Journal of Energy Chemistry》索引2024年第88卷第1期,共8页

基　　金：funding support from the National Natural Science Foundation of China (52172182, 21975028, 22011540377, 22005035, U21A20172)。 摘　　要：Perovskite solar cell has gained widespread attention as a promising technology for renewable energy.However, their commercial viability has been hampered by their long-term stability and potential Pb leakage. Herein, we demonstrate a bifunctional passivator of the potassium tartrate(PT) to address both challenges. PT minimizes the Pb leakage in perovskites and also heals cationic vacancy defects, resulting in improved device performance and stability. Benefiting from PT modification, the power conversion efficiency(PCE) is improved to 23.26% and the Pb leakage in unencapsulated films is significantly reduced to 9.79 ppm. Furthermore, the corresponding device exhibits no significant decay in PCE after tracking at the maximum power point(MPP) for 2000 h under illumination(LED source, 100 mW cm^(-2)). 关键词：PEROVSKITE Potassium tartrate Lead leakage Long-term stability

相关文献

参考文献（39）
引证文献（0）
耦合文献（1）

参考文献(39)

耦合文献(1)

互联网出版许可证新出网证(渝)字10号全国400电话 - 免长途话费

Vacancy healing for stable perovskite solar cells via bifunctional potassium tartrate

参考文献(39)

耦合文献(1)

用户提示