cPCN-Regulated SnO2 Composites Enables Perovskite Solar Cell with Efficiency Beyond 23%

Nano-Micro Letters

Zicheng Li¹  Zhihao Zhang¹  Qiu Xiong²  Peng Gao²  Longhui Deng²  Qin Zhou²  Yifeng Gao²  Xiaochun Li³  Yuanxing Fang³ 

[1] CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, People’s Republic of China;College of Chemistry, Fuzhou University, 350116, Fuzhou, People’s Republic of China;Laboratory for Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, 361021, Xiamen, People’s Republic of China;CAS Key Laboratory of Design and Assembly of Functional Nanostructures, and Fujian Provincial Key Laboratory of Nanomaterials, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, 350002, Fuzhou, Fujian, People’s Republic of China;Laboratory for Advanced Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institute, Chinese Academy of Sciences, 361021, Xiamen, People’s Republic of China;College of Chemistry, Fuzhou University, 350116, Fuzhou, People’s Republic of China;

关键词: Electron transport layer;    Perovskite solar cell;    Carbon nitride;    SnO;   

DOI  :  10.1007/s40820-021-00636-0

来源: Springer

【 摘 要 】

tsThe (SnO2-cPCN) ETL shows superior electron mobility of 3.3 × 10−3 cm2 V−1 s−1, which is about three times higher than that of pristine SnO2.The less wettable SnO2-cPCN leads to perovskite layers with reduced grain boundaries and enhanced qualities due to suppressed heterogeneous nucleation of perovskite.The PSCs based on SnO2-cPCN showed negligible J–V hysteresis and two champion PCE of 23.17% and 20.3% on devices with 0.1 and 1 cm2 active area, respectively.

【 授权许可】

CC BY