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Sökning: WFRF:(Choi Jin Young) > (2020-2024) > Pseudo-halide anion...

  • Jeong, JaekiUlsan 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 (författare)

Pseudo-halide anion engineering for α-FAPbI3 perovskite solar cells

  • Artikel/kapitelEngelska2021

Förlag, utgivningsår, omfång ...

  • 2021-04-05
  • Springer Nature,2021
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:uu-467408
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-467408URI
  • https://doi.org/10.1038/s41586-021-03406-5DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

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Klassifikation

  • Ämneskategori:ref swepub-contenttype
  • Ämneskategori:art swepub-publicationtype

Anmärkningar

  • 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.

Ämnesord och genrebeteckningar

Biuppslag (personer, institutioner, konferenser, titlar ...)

  • Kim, MinjinKorea Inst Energy Res KIER, Ulsan, South Korea (författare)
  • Seo, JongdeukUlsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea (författare)
  • Lu, HaizhouEcole 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 (författare)
  • Ahlawat, ParamvirEcole Polytech Fed Lausanne EPFL, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Mishra, AdityaEcole Polytech Fed Lausanne EPFL, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Yang, YingguoChinese Acad Sci, Shanghai Adv Res Inst, Zhangjiang Lab, Shanghai Synchrotron Radiat Facil SSRF, Shanghai, Peoples R China (författare)
  • Hope, Michael A.Ecole Polytech Fed Lausanne EPFL, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Eickemeyer, Felix T.Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Kim, MaengsukUlsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea (författare)
  • Yoon, Yung JinUlsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea (författare)
  • Choi, In WooKorea Inst Energy Res KIER, Ulsan, South Korea (författare)
  • Darwich, Barbara PrimeraEcole Polytech Fed Lausanne EPFL, Lab Mol Engn Optoelect Nanomat, Lausanne, Switzerland (författare)
  • Choi, Seung JuKorea Inst Energy Res KIER, Ulsan, South Korea (författare)
  • Jo, YimhyunKorea Inst Energy Res KIER, Ulsan, South Korea (författare)
  • Lee, Jun HeeUlsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea (författare)
  • Walker, BrightKyung Hee Univ, Dept Chem, Seoul, South Korea.;Kyung Hee Univ, Res Inst Basic Sci, Seoul, South Korea (författare)
  • Zakeeruddin, Shaik M.Ecole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Emsley, LyndonEcole Polytech Fed Lausanne EPFL, Lab Magnet Resonance, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Rothlisberger, UrsulaEcole Polytech Fed Lausanne EPFL, Lab Computat Chem & Biochem, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Hagfeldt, AndersUppsala universitet,Fysikalisk kemi,Ecole Polytech Fed Lausanne EPFL, Lab Photomol Sci, Inst Chem Sci & Engn, Lausanne, Switzerland(Swepub:uu)andehagf (författare)
  • Kim, Dong SukKorea Inst Energy Res KIER, Ulsan, South Korea (författare)
  • Graetzel, MichaelEcole Polytech Fed Lausanne EPFL, Lab Photon & Interfaces, Inst Chem Sci & Engn, Lausanne, Switzerland (författare)
  • Kim, Jin YoungUlsan Natl Inst Sci & Technol UNIST, Sch Energy & Chem Engn, Dept Energy Engn, Ulsan, South Korea (författare)
  • 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, SwitzerlandKorea Inst Energy Res KIER, Ulsan, South Korea (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Nature: Springer Nature592:7854, s. 381-3850028-08361476-4687

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