Anion exchange promoting non-impurities enables conformable and efficient inverted perovskite solar cells

Fang, Jun1; Lin, Dongxu1; Xie, Guanshui1; Li, Sibo1; Li, Huan1; Wang, Xin1; Wang, Daozeng1; Huang, Nuanshan1; Peng, Haichen1; Gan, Lin1; Zhu, Yanzhuo1; He, Sisi2; Qiu, Longbin1

2024-09-01

10.1039/d4ee02718c

ENERGY & ENVIRONMENTAL SCIENCE   影响因子和分区

1754-5692

1754-5706

["Two-step sequential deposition is promising for controlling the crystallization and growth of compact perovskites by separating the deposition of PbI2 and organic salt. Furthermore, thermally evaporated PbI2 has the potential for application in textured surfaces. However, the performance of inverted perovskite solar cells by the two-step sequential deposition lags far behind the counterpart fabricated by the one-step deposition from a precursor solution. Herein, we provide insight into anion exchange in a sequential thermal evaporation-solution process for high-quality perovskite films. The exchange process promotes mass transport and the penetration of organic compounds into evaporated PbI2, optimizes phase purity, and enables a homogeneous halide distribution with inhibited phase segregation. The device fabricated by evaporated-PbI2 as the bottom layer following the solid-solution interdiffusion process yielded a high efficiency of 24.43% (certified 24.18%), which is the highest for inverted perovskite solar cells based on evaporated PbI2. On incorporating the scalable blading process for solid-solution interdiffusion, the device exhibited an efficiency of up to 22.22%. The resulting conformable and scalable cells maintained 95% of the initial efficiency after operation for 682 h under one sun illumination. This anion-exchange strategy provides instructive significance for future large-area and monolithic perovskite-silicon tandem cells.","An insight of anion-exchange strategy gained by in situ characterization in sequential thermal evaporation-solution process for high quality perovskite films."]

SCI

英语

第一 ; 通讯

National Natural Science Foundation of China[22109067] ; National Natural Science Foundation of China["2022A1515010085","2023B1515120008","2021ZT09C064","2021QN02L138"] ; Guangdong Basic and Applied Basic Research Foundation["JCYJ20220530115013029","ZDSYS20220527171403009","G03034K001"]

Chemistry ; Energy & Fuels ; Engineering ; Environmental Sciences & Ecology

Chemistry, Multidisciplinary ; Energy & Fuels ; Engineering, Chemical ; Environmental Sciences

WOS:001312786100001

ROYAL SOC CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, SUSTech Energy Inst Carbon Neutral, Dept Mech & Energy Engn, Shenzhen Key Lab Intelligent Robot & Flexible Mfg, Shenzhen 518055, Peoples R China
2.Harbin Inst Technol Shenzhen, Sch Sci, Shenzhen Key Lab Flexible Printed Elect Technol, Shenzhen 518055, Guangdong, Peoples R China

Fang, Jun,Lin, Dongxu,Xie, Guanshui,et al. Anion exchange promoting non-impurities enables conformable and efficient inverted perovskite solar cells[J]. ENERGY & ENVIRONMENTAL SCIENCE,2024.

Fang, Jun.,Lin, Dongxu.,Xie, Guanshui.,Li, Sibo.,Li, Huan.,...&Qiu, Longbin.(2024).Anion exchange promoting non-impurities enables conformable and efficient inverted perovskite solar cells.ENERGY & ENVIRONMENTAL SCIENCE.

Fang, Jun,et al."Anion exchange promoting non-impurities enables conformable and efficient inverted perovskite solar cells".ENERGY & ENVIRONMENTAL SCIENCE (2024).