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Constructing Chromi...
Constructing Chromium Multioxide Hole-Selective Heterojunction for High-Performance Perovskite Solar Cells
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- Jiang, Sheng (author)
- East China Normal Univ, Peoples R China
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- Xiong, Shaobing (author)
- East China Normal Univ, Peoples R China
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- Dong, Wei (author)
- East China Normal Univ, Peoples R China
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- Li, Danqin (author)
- East China Normal Univ, Peoples R China
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- Yan, Yuting (author)
- East China Normal Univ, Peoples R China
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- Jia, Menghui (author)
- East China Normal Univ, Peoples R China
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- Dai, Yannan (author)
- East China Normal Univ, Peoples R China
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- Zhao, Qingbiao (author)
- East China Normal Univ, Peoples R China
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- Jiang, Kai (author)
- East China Normal Univ, Peoples R China
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- Liu, Xianjie, 1971- (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Ding, Liming (author)
- Natl Ctr Nanosci & Technol, Peoples R China
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- Fahlman, Mats, 1967- (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Sun, Zhenrong (author)
- East China Normal Univ, Peoples R China
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- Bao, Qinye (author)
- East China Normal Univ, Peoples R China; Shanxi Univ, Peoples R China
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(creator_code:org_t)
- 2022-08-28
- 2022
- English.
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In: Advanced Science. - : Wiley. - 2198-3844. ; 9:30
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https://urn.kb.se/re...
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Abstract
Subject headings
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- Perovskite solar cells (PSCs) suffer from significant nonradiative recombination at perovskite/charge transport layer heterojunction, seriously limiting their power conversion efficiencies. Herein, solution-processed chromium multioxide (CrOx) is judiciously selected to construct a MAPbI(3)/CrOx/Spiro-OMeTAD hole-selective heterojunction. It is demonstrated that the inserted CrOx not only effectively reduces defect sites via redox shuttle at perovskite contact, but also decreases valence band maximum (VBM)-HOMO offset between perovskite and Spiro-OMeTAD. This will diminish thermionic losses for collecting holes and thus promote charge transport across the heterojunction, suppressing both defect-assisted recombination and interface carrier recombination. As a result, a remarkable improvement of 21.21% efficiency with excellent device stability is achieved compared to 18.46% of the control device, which is among the highest efficiencies for polycrystalline MAPbI(3) based n-i-p planar PSCs reported to date. These findings of this work provide new insights into novel charge-selective heterojunctions for further enhancing efficiency and stability of PSCs.
Subject headings
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Annan kemiteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Other Chemical Engineering (hsv//eng)
Keyword
- charge transport; efficiency; hole-selective heterojunction; nonradiative recombination; perovskite solar cells
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Jiang, Sheng
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Xiong, Shaobing
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Dong, Wei
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Li, Danqin
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Yan, Yuting
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Jia, Menghui
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show more...
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Dai, Yannan
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Zhao, Qingbiao
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Jiang, Kai
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Liu, Xianjie, 19 ...
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Ding, Liming
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Fahlman, Mats, 1 ...
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Sun, Zhenrong
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Bao, Qinye
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- About the subject
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- ENGINEERING AND TECHNOLOGY
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ENGINEERING AND ...
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and Chemical Enginee ...
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and Other Chemical E ...
- Articles in the publication
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Advanced Science
- By the university
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Linköping University