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Precursor engineering enables high-performance all-inorganic CsPbIBr2 perovskite solar cells with a record efficiency approaching 13%

Chang, Qingyan (författare)
State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning
An, Yidan (författare)
Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong, China
Cao, Huaiman (författare)
State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning
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Pan, Yuzhen (författare)
School of Chemical and Engineering, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning
Zhao, Liangyu (författare)
State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning
Chen, Yulong (författare)
State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning
We, Yi (författare)
Key Laboratory of Materials Modification by Laser, Ion, and Electron Beams (Ministry of Education), Dalian University of Technology (DUT), Dalian 116024 Liaoning, China, Liaoning
Tsang, Sai Wing (författare)
Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong, China
Yip, Hin Lap (författare)
Department of Materials Science and Engineering, City University of Hong Kong, Kowloon 999077, Hong Kong, China; School of Energy and Environment, City University of Hong Kong, Kowloon 999077, Hong Kong, China
Sun, Licheng, 1962- (författare)
KTH,Organisk kemi,State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning; Center of Artificial Photosynthesis for Solar Fuels and Department of Chemistry, School of Science, Westlake University, Hangzhou 310024, Zhejiang, China, Zhejiang
Yu, Ze (författare)
State Key Laboratory of Fine Chemicals, Dalian University of Technology (DUT), Dalian 116024, Liaoning, China, Liaoning
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 (creator_code:org_t)
Elsevier BV, 2024
2024
Engelska.
Ingår i: Journal of Energy Chemistry. - : Elsevier BV. - 2095-4956 .- 2096-885X. ; 90, s. 16-22
Relaterad länk:
https://urn.kb.se/re...
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https://doi.org/10.1...
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  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • All-inorganic CsPbIBr2 perovskite has attracted widespread attention in photovoltaic and other optoelectronic devices because of its superior thermal stability. However, the deposition of high-quality solution-processed CsPbIBr2 perovskite films with large thicknesses remains challenging. Here, we develop a triple-component precursor (TCP) by employing lead bromide, lead iodide, and cesium bromide, to replace the most commonly used double-component precursor (DCP) consisting of lead bromide and cesium iodide. Remarkably, the TCP system significantly increases the solution concentration to 1.3 M, leading to a larger film thickness (∼390 nm) and enhanced light absorption. The resultant CsPbIBr2 films were evaluated in planar n-i-p structured solar cells, which exhibit a considerably higher optimal photocurrent density of 11.50 mA cm−2 in comparison to that of DCP-based devices (10.69 mA cm−2). By adopting an organic surface passivator, the maximum device efficiency using TCP is further boosted to a record efficiency of 12.8% for CsPbIBr2 perovskite solar cells.

Ämnesord

NATURVETENSKAP  -- Kemi -- Materialkemi (hsv//swe)
NATURAL SCIENCES  -- Chemical Sciences -- Materials Chemistry (hsv//eng)

Nyckelord

All-inorganic perovskite solar cells
CsPbIBr 2
High performance
Precursor engineering
Solubility

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