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Managing grains and...
Managing grains and interfaces via ligand anchoring enables 22.3%-efficiency inverted perovskite solar cells
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- Zheng, Xiaopeng (author)
- KAUST, Saudi Arabia
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- Hou, Yi (author)
- Univ Toronto, Canada
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- Bao, Chunxiong (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Yin, Jun (author)
- KAUST, Saudi Arabia
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- Yuan, Fanglong (author)
- Univ Toronto, Canada
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- Huang, Ziru (author)
- University of Toronto, Toronto, Ontario, Canada
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- Song, Kepeng (author)
- KAUST, Saudi Arabia
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- Liu, Jiakai (author)
- KAUST, Saudi Arabia
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- Troughton, Joel (author)
- KAUST, Saudi Arabia
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- Gasparini, Nicola (author)
- KAUST, Saudi Arabia
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- Zhou, Chun (author)
- Univ Toronto, Canada
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- Lin, Yuanbao (author)
- KAUST, Saudi Arabia
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- Xue, Ding-Jiang (author)
- Univ Toronto, Canada
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- Chen, Bin (author)
- Univ Toronto, Canada
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- Johnston, Andrew K. (author)
- Univ Toronto, Canada
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- Wei, Nini (author)
- KAUST, Saudi Arabia
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- Hedhili, Mohamed Nejib (author)
- KAUST, Saudi Arabia
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- Wei, Mingyang (author)
- Univ Toronto, Canada
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- Alsalloum, Abdullah Y. (author)
- KAUST, Saudi Arabia
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- Maity, Partha (author)
- KAUST, Saudi Arabia
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- Turedi, Bekir (author)
- KAUST, Saudi Arabia
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- Yang, Chen (author)
- KAUST, Saudi Arabia
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- Baran, Derya (author)
- KAUST, Saudi Arabia
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- Anthopoulos, Thomas D. (author)
- KAUST, Saudi Arabia
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- Han, Yu (author)
- KAUST, Saudi Arabia
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- Lu, Zheng-Hong (author)
- Univ Toronto, Canada
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- Mohammed, Omar F. (author)
- KAUST, Saudi Arabia
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- Gao, Feng (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Sargent, Edward H. (author)
- Univ Toronto, Canada
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- Bakr, Osman M. (author)
- KAUST, Saudi Arabia
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(creator_code:org_t)
- 2020-01-20
- 2020
- English.
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In: NATURE ENERGY. - : Nature Publishing Group. - 2058-7546. ; 5, s. 131-140
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
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- Inverted perovskite solar cells have attracted increasing attention because they have achieved long operating lifetimes. However, they have exhibited significantly inferior power conversion efficiencies compared to regular perovskite solar cells. Here we reduce this efficiency gap using a trace amount of surface-anchoring alkylamine ligands (AALs) with different chain lengths as grain and interface modifiers. We show that long-chain AALs added to the precursor solution suppress nonradiative carrier recombination and improve the optoelectronic properties of mixed-cation mixed-halide perovskite films. The resulting AAL surface-modified films exhibit a prominent (100) orientation and lower trap-state density as well as enhanced carrier mobilities and diffusion lengths. These translate into a certified stabilized power conversion efficiency of 22.3% (23.0% power conversion efficiency for lab-measured champion devices). The devices operate for over 1,000 h at the maximum power point under simulated AM1.5 illumination, without loss of efficiency. While perovskite solar cells with an inverted architecture hold great promise for operation stability, their power conversion efficiency lags behind that of conventional cells. Here, Zheng et al. achieve a certified 22.34% efficiency, exploiting alkylamine ligands as grain and interface modifiers.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Zheng, Xiaopeng
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Hou, Yi
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Bao, Chunxiong
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Yin, Jun
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Yuan, Fanglong
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Huang, Ziru
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show more...
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Song, Kepeng
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Liu, Jiakai
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Troughton, Joel
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Gasparini, Nicol ...
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Zhou, Chun
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Lin, Yuanbao
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Xue, Ding-Jiang
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Chen, Bin
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Johnston, Andrew ...
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Wei, Nini
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Hedhili, Mohamed ...
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Wei, Mingyang
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Alsalloum, Abdul ...
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Maity, Partha
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Turedi, Bekir
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Yang, Chen
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Baran, Derya
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Anthopoulos, Tho ...
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Han, Yu
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Lu, Zheng-Hong
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Mohammed, Omar F ...
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Gao, Feng
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Sargent, Edward ...
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Bakr, Osman M.
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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and Materials Chemis ...
- Articles in the publication
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NATURE ENERGY
- By the university
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Linköping University