Liquid medium annealing for fabricating durable perovskite solar cells with improved reproducibility

被引:345
作者
Li, Nengxu [1 ,2 ]
Niu, Xiuxiu [1 ,2 ]
Li, Liang [2 ]
Wang, Hao [1 ,3 ]
Huang, Zijian [2 ]
Zhang, Yu [2 ]
Chen, Yihua [2 ]
Zhang, Xiao [1 ]
Zhu, Cheng [1 ]
Zai, Huachao [2 ]
Bai, Yang [1 ]
Ma, Sai [1 ]
Liu, Huifen [2 ]
Liu, Xixia [2 ]
Guo, Zhenyu [2 ]
Liu, Guilin [4 ]
Fan, Rundong [2 ]
Chen, Hong [5 ,6 ]
Wang, Jianpu [5 ,6 ]
Lun, Yingzhuo [7 ]
Wang, Xueyun [7 ]
Hong, Jiawang [7 ]
Xie, Haipeng [8 ]
Jakob, Devon S. [9 ]
Xu, Xiaoji G. [9 ]
Chen, Qi [1 ]
Zhou, Huanping [2 ]
机构
[1] Beijing Inst Technol, Sch Mat Sci & Engn, Expt Ctr Adv Mat, Beijing 100081, Peoples R China
[2] Peking Univ, Sch Mat Sci & Engn, Beijing Key Lab Theory & Technol Adv Battery Mat, Key Lab Polymer Chem & Phys,Minist Educ,BIC ESAT, Beijing 100871, Peoples R China
[3] Beijing Inst Technol Chongqing Innovat Ctr, Chongqing 401120, Peoples R China
[4] Jiangnan Univ, Sch Sci, Wuxi 214122, Jiangsu, Peoples R China
[5] Nanjing Tech Univ NanjingTech, Key Lab Flexible Elect KLOFE, Nanjing 210009, Peoples R China
[6] Nanjing Tech Univ NanjingTech, Inst Adv Mat IAM, Nanjing 210009, Peoples R China
[7] Beijing Inst Technol, Sch Aerosp Engn, Beijing 100081, Peoples R China
[8] Cent South Univ, Sch Phys & Elect, Hunan Key Lab Super Microstruct & Ultrafast Proc, Changsha 410012, Hunan, Peoples R China
[9] Lehigh Univ, Dept Chem, Bethlehem, PA 18015 USA
关键词
HIGHLY EFFICIENT; RECENT PROGRESS; PERFORMANCE; IODIDE; CRYSTALLIZATION; CATION; LAYERS;
D O I
10.1126/science.abh3884
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Solution processing of semiconductors is highly promising for the high-throughput production of cost-effective electronics and optoelectronics. Although hybrid perovskites have potential in various device applications, challenges remain in the development of high-quality materials with simultaneously improved processing reproducibility and scalability. Here, we report a liquid medium annealing (LMA) technology that creates a robust chemical environment and constant heating field to modulate crystal growth over the entire film. Our method produces films with high crystallinity, fewer defects, desired stoichiometry, and overall film homogeneity. The resulting perovskite solar cells (PSCs) yield a stabilized power output of 24.04% (certified 23.7%, 0.08 cm(2)) and maintain 95% of their initial power conversion efficiency (PCE) after 2000 hours of operation. In addition, the 1-cm(2) PSCs exhibit a stabilized power output of 23.15% (certified PCE 22.3%) and keep 90% of their initial PCE after 1120 hours of operation, which illustrates their feasibility for scalable fabrication. LMA is less climate dependent and produces devices in-house with negligible performance variance year round. This method thus opens a new and effective avenue to improving the quality of perovskite films and photovoltaic devices in a scalable and reproducible manner.
引用
收藏
页码:561 / +
页数:84
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