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Pseudo-halide anion...
Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells
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- Jeong, Jaeki (author)
- Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea.;Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Kim, Minjin (author)
- Korea Inst Energy Res KIER, Ulsan, South Korea
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- Seo, Jongdeuk (author)
- Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea
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- Lu, Haizhou (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland.;Ecole Polytech Fed Lausanne EPFL, Lab Photomol Sci, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Ahlawat, Paramvir (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Mishra, Aditya (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Yang, Yingguo (author)
- Chinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai Synchrotron Radiat Facil SSRF, Shanghai, Peoples R China
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- Hope, Michael A. (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Eickemeyer, Felix T. (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Kim, Maengsuk (author)
- Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea
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- Yoon, Yung Jin (author)
- Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea
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- Choi, In Woo (author)
- Korea Inst Energy Res KIER, Ulsan, South Korea
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- Darwich, Barbara Primera (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Mol Engn Optoelect Nanomat, Lausanne, Switzerland
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- Choi, Seung Ju (author)
- Korea Inst Energy Res KIER, Ulsan, South Korea
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- Jo, Yimhyun (author)
- Korea Inst Energy Res KIER, Ulsan, South Korea
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- Lee, Jun Hee (author)
- Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea
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- Walker, Bright (author)
- Kyung Hee Univ, Dept Chem, Seoul, South Korea.;Kyung Hee Univ, Res Inst Basic Sci, Seoul, South Korea
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- Zakeeruddin, Shaik M. (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Emsley, Lyndon (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Rothlisberger, Ursula (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Hagfeldt, Anders (author)
- Uppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne EPFL, Lab Photomol Sci, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Kim, Dong Suk (author)
- Korea Inst Energy Res KIER, Ulsan, South Korea
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- Graetzel, Michael (author)
- Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland
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- Kim, Jin Young (author)
- Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea
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Ulsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea;Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland Korea Inst Energy Res KIER, Ulsan, South Korea (creator_code:org_t)
- 2021-04-05
- 2021
- English.
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In: Nature. - : Springer Nature. - 0028-0836 .- 1476-4687. ; 592:7854, s. 381-385
- Related links:
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https://scholarworks...
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Abstract
Subject headings
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- Metal halide perovskites of the general formula ABX(3)-where A is a monovalent cation such as caesium, methylammonium or formamidinium; B is divalent lead, tin or germanium; and X is a halide anion-have shown great potential as light harvesters for thin-film photovoltaics(1-5). Among a large number of compositions investigated, the cubic a-phase of formamidinium lead triiodide (FAPbI(3)) hasemerged as the most promising semiconductor for highly efficient and stable perovskite solar cells(6-9), and maximizing the performance of this material in such devices is of vital importance for the perovskite researchcommunity. Here we introduce an anion engineering concept that uses the pseudo-halide anion formate (HCOO-) to suppress anion-vacancy defects that are present at grain boundaries and at the surface of the perovskite films and to augment the crystallinity of the films. Theresulting solar cell devices attain a power conversion efficiency of 25.6 per cent (certified 25.2 per cent), have long-term operational stability (450 hours) and show intense electroluminescence with external quantum efficiencies of more than 10 per cent. Our findings provide a direct route to eliminate the most abundant and deleterious lattice defects present in metal halide perovskites, providing a facile access to solution-processable films with improved optoelectronic performance.
Subject headings
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
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- ref (subject category)
- art (subject category)
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Nature
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- By the author/editor
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Jeong, Jaeki
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Kim, Minjin
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Seo, Jongdeuk
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Lu, Haizhou
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Ahlawat, Paramvi ...
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Mishra, Aditya
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Yang, Yingguo
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Hope, Michael A.
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Eickemeyer, Feli ...
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Kim, Maengsuk
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Yoon, Yung Jin
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Choi, In Woo
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Darwich, Barbara ...
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Choi, Seung Ju
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Jo, Yimhyun
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Lee, Jun Hee
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Walker, Bright
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Zakeeruddin, Sha ...
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Emsley, Lyndon
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Rothlisberger, U ...
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Hagfeldt, Anders
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Kim, Dong Suk
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Graetzel, Michae ...
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Kim, Jin Young
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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 ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
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Nature
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Uppsala University