Binary Microcrystal Additives Enabled Antisolvent-Free Perovskite Solar Cells with High Efficiency and Stability

Wang, Deng1,2; Chen, Jiabang1; Zhu, Peide1; Qiao, Ying3; Hu, Hang1; Zeng, Jie1,2; Zhang, Jiyao1; Qu, Geping3; Wang, Yanggang3; Wang, Xingzhu4,5; Jen, Alex K. -Y.2,6; Xu, Baomin1,7

2022-12-01

10.1002/aenm.202203649

Advanced Energy Materials   Impact Factor & Quartile

1614-6832

1614-6840

Developing a facile method to prepare high-quality perovskite films without using the antisolvent technique is critical for upscaling production of perovskite solar cells (PVSCs). However, the as-prepared formamidinium (FA)-based perovskite films often exhibit poor film quality with high density of defects if antisolvent is not used, limiting the photovoltaic performance and long-term stability of derived PVSCs. Herein, this work adopts pre-synthesized 3D methylammonium lead chloride (MAPbCl(3)) and 1D 2-aminobenzothiazole lead iodide (ABTPbI(3)) microcrystals into self-drying perovskite precursors, which serve as seed crystals to promote nucleation and growth of FAPbI(3)-based perovskites without requiring antisolvent extraction. The combined binary microcrystals facilitate the formation of a dense and pinhole-free perovskite film with a stable perovskite lattice and defect-healed grain boundaries, enabling efficient charge carrier transfer and reduced non-radiative recombination loss. As a result, the best-performing inverted architecture device exhibits a champion power conversion efficiency of 23.27% for small-area devices (0.09 cm(2)) and 21.52% for large-area devices (1.0 cm(2)). These values are among the highest efficiencies reported for antisolvent-free PVSCs. Additionally, the unencapsulated device shows enhanced moisture, thermal, and operational stabilities, and maintains 92% of its initial efficiency after being held at the maximum power point for 1000 h.

antisolvent-free perovskite solar cells defect-healed grain boundaries microcrystal additives nucleation and crystal growth operational stability

SCI

English

First ; Corresponding

Guangdong Basic and Applied Basic Research Foundation[2019B1515120083] ; National Key Research and Development Project from the Ministry of Science and Technology of China["2021YFB3800100","2021YFB3800101","2021YFE0191500"] ; National Natural Science Foundation of China[U19A2089] ; Key Fundamental Research Project funding from the Shenzhen Science and Technology Innovation Committee[JCYJ20200109141014474] ; Innovation and Technology Commission of Hong Kong["GHP/018/20SZ","MRP/040/21X"] ; Green Tech Fund from the Environment and Ecology Bureau of Hong Kong[202020164] ; GRF grant from the Research Grants Council of Hong Kong[11307621] ; Guangdong Major Project of Basic and Applied Basic Research[2019B030302007] ; Guangdong-Hong Kong-Macao Joint Laboratory of Optoelectronic and Magnetic Functional Materials[2019B121205002]

Chemistry ; Energy & Fuels ; Materials Science ; Physics

Chemistry, Physical ; Energy & Fuels ; Materials Science, Multidisciplinary ; Physics, Applied ; Physics, Condensed Matter

WOS:000905313000001

WILEY-V C H VERLAG GMBH

2-s2.0-85145272967

Web of Science

1.Southern Univ Sci & Technol, Dept Mat Sci & Engn, Shenzhen 518055, Peoples R China
2.City Univ Hong Kong, Dept Mat Sci & Engn, Kowloon, Hong Kong 999077, Peoples R China
3.Southern Univ Sci & Technol, Dept Chem, Shenzhen 518055, Peoples R China
4.Southern Univ Sci & Technol, SUSTech Acad Adv Interdisciplinary Studies, Shenzhen 518055, Peoples R China
5.Shenzhen Putai Technol Co Ltd, Shenzhen 518110, Peoples R China
6.City Univ Hong Kong, Hong Kong Inst Clean Energy, Dept Chem, Kowloon, Hong Kong 999077, Peoples R China
7.Southern Univ Sci & Technol, Key Univ Lab Highly Efficient Utilizat Solar Energ, R China, Shenzhen 518055, Peoples R China

Wang, Deng,Chen, Jiabang,Zhu, Peide,et al. Binary Microcrystal Additives Enabled Antisolvent-Free Perovskite Solar Cells with High Efficiency and Stability[J]. Advanced Energy Materials,2022,13(7).

Wang, Deng.,Chen, Jiabang.,Zhu, Peide.,Qiao, Ying.,Hu, Hang.,...&Xu, Baomin.(2022).Binary Microcrystal Additives Enabled Antisolvent-Free Perovskite Solar Cells with High Efficiency and Stability.Advanced Energy Materials,13(7).

Wang, Deng,et al."Binary Microcrystal Additives Enabled Antisolvent-Free Perovskite Solar Cells with High Efficiency and Stability".Advanced Energy Materials 13.7(2022).