Additive engineering with 2,8-dibromo-dibenzothiophene-S,S-dioxide enabled tin-based perovskite solar cells with 14.98% power conversion efficiency

Zhou, Xianyong1,2,3,4,5; Peng, Wenbo1,3,4,5; Liu, Zhixin1,3,4,5,6; Zhang, Yong1,3,4,5; Zhang, Luozheng7; Zhang, Meiqing8; Liu, Chang2; Yan, Lei9; Wang, Xingzhu1,2,3,4,5,6,9; Xu, Baomin1,3,4,5

2024-04-23

10.1039/d3ee03359g

ENERGY & ENVIRONMENTAL SCIENCE   影响因子和分区

1754-5692

1754-5706

As the most promising lead-free perovskite, tin-based perovskite has attracted much attention due to its suitable bandgap and low toxicity. However, many defects (tin vacancy defects caused by Sn2+ oxidation to Sn4+, grain boundary defects and point defects) in tin-based perovskite lead to serious losses in device efficiency. Here, a universal and effective doping strategy is delivered to improve the structure and optoelectronic properties of tin-based perovskite films through 2,8-dibromo-dibenzothiophene-S,S-dioxide (BrDS) doping. The introduction of BrDS can effectively inhibit the oxidation of Sn2+ and passivate grain boundary defects and point defects in the perovskite films. The tin-based perovskite film doped with BrDS exhibits higher carrier lifetime and crystal quality. As a result, the BrDS-doped device achieves a power conversion efficiency of 14.98% with a certified efficiency of 14.36%, which is one of the highest PCEs among all values reported to date for tin-based PSCs. In addition, the BrDS-doped PSC devices exhibit significantly improved long-term stability and improved operational stability in a N-2 atmosphere. This work represents a noteworthy step towards manufacturing efficient and stable tin-based PSCs.

SCI ; EI

英语

第一 ; 通讯

Ministry of Science and Technology of the People's Republic of China["2021YFB3800101","2022YFE0118400"] ; National Key Research and Development Project from the Ministry of Science and Technology of China["U19A2089","61904076","62174078"] ; National Natural Science Foundation of China["JCYJ20220818100211025","KCXST20221021111616039","JCYJ20220818100406014"] ; Key Fundamental Research Project funding from the Shenzhen Science and Technology Innovation Committee[2020A1515010980] ; Natural Science Foundation of Guangdong Province["2023JJ50132","2022RC1076"]

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

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

WOS:001190345100001

ROYAL SOC CHEMISTRY

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.Univ South China, Sch Elect Engn, Hengyang 421001, Peoples R China
3.Southern Univ Sci & Technol, Shenzhen Engn Res & Dev Ctr Flexible Solar Cells, Shenzhen 518055, Peoples R China
4.Key Univ Lab Highly Efficient Utilizat Solar Energ, Southern Univ Sci & Technol, Shenzhen 518055, Peoples R China
5.Southern Univ Sci & Technol, Guangdong Hong Kong Macao Joint Lab Photon Thermal, Shenzhen 518055, Peoples R China
6.Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
7.Yangzhou Univ, Coll Mech Engn, Yangzhou 225009, Peoples R China
8.Univ South China, Coll Math & Phys, Hengyang 421001, Peoples R China
9.Shenzhen Putai Technol Co Ltd, Shenzhen 518000, Peoples R China

Zhou, Xianyong,Peng, Wenbo,Liu, Zhixin,et al. Additive engineering with 2,8-dibromo-dibenzothiophene-S,S-dioxide enabled tin-based perovskite solar cells with 14.98% power conversion efficiency[J]. ENERGY & ENVIRONMENTAL SCIENCE,2024,17(8).

Zhou, Xianyong.,Peng, Wenbo.,Liu, Zhixin.,Zhang, Yong.,Zhang, Luozheng.,...&Xu, Baomin.(2024).Additive engineering with 2,8-dibromo-dibenzothiophene-S,S-dioxide enabled tin-based perovskite solar cells with 14.98% power conversion efficiency.ENERGY & ENVIRONMENTAL SCIENCE,17(8).

Zhou, Xianyong,et al."Additive engineering with 2,8-dibromo-dibenzothiophene-S,S-dioxide enabled tin-based perovskite solar cells with 14.98% power conversion efficiency".ENERGY & ENVIRONMENTAL SCIENCE 17.8(2024).