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  • Shen, XinyiUniversity of Oxford (author)

Chloride-Based Additive Engineering for Efficient and Stable Wide-Bandgap Perovskite Solar Cells

  • Article/chapterEnglish2023

Publisher, publication year, extent ...

  • 2023

Numbers

  • LIBRIS-ID:oai:lup.lub.lu.se:5d86730f-7bd6-4a5a-96c4-f4d875e64498
  • https://lup.lub.lu.se/record/5d86730f-7bd6-4a5a-96c4-f4d875e64498URI
  • https://doi.org/10.1002/adma.202211742DOI

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  • Language:English
  • Summary in:English

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  • Subject category:art swepub-publicationtype
  • Subject category:ref swepub-contenttype

Notes

  • Metal halide perovskite based tandem solar cells are promising to achieve power conversion efficiency beyond the theoretical limit of their single-junction counterparts. However, overcoming the significant open-circuit voltage deficit present in wide-bandgap perovskite solar cells remains a major hurdle for realizing efficient and stable perovskite tandem cells. Here, a holistic approach to overcoming challenges in 1.8 eV perovskite solar cells is reported by engineering the perovskite crystallization pathway by means of chloride additives. In conjunction with employing a self-assembled monolayer as the hole-transport layer, an open-circuit voltage of 1.25 V and a power conversion efficiency of 17.0% are achieved. The key role of methylammonium chloride addition is elucidated in facilitating the growth of a chloride-rich intermediate phase that directs crystallization of the desired cubic perovskite phase and induces more effective halide homogenization. The as-formed 1.8 eV perovskite demonstrates suppressed halide segregation and improved optoelectronic properties.

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  • Gallant, Benjamin M.University of Oxford (author)
  • Holzhey, PhilippeUniversity of Oxford (author)
  • Smith, Joel A.University of Oxford (author)
  • Elmestekawy, Karim A.University of Oxford (author)
  • Yuan, ZhongchengUniversity of Oxford (author)
  • Rathnayake, P. V.G.M.University of Sydney (author)
  • Bernardi, StefanoUniversity of Sydney (author)
  • Dasgupta, AkashUniversity of Oxford (author)
  • Kasparavicius, ErnestasCenter for Physical Sciences and Technology, Lithuania (author)
  • Malinauskas, TadasKaunas University of Technology (author)
  • Caprioglio, PietroUniversity of Oxford (author)
  • Shargaieva, OleksandraHelmholtz-Zentrum Berlin für Materialien und Energie GmbH (author)
  • Lin, Yen HungUniversity of Oxford (author)
  • McCarthy, Melissa M.University of Oxford (author)
  • Unger, EvaLund University,Lunds universitet,NanoLund: Centre for Nanoscience,Annan verksamhet, LTH,Lunds Tekniska Högskola,Kemisk fysik,Enheten för fysikalisk och teoretisk kemi,Kemiska institutionen,Institutioner vid LTH,LTH profilområde: Nanovetenskap och halvledarteknologi,LTH profilområden,LU profilområde: Ljus och material,Lunds universitets profilområden,Other operations, LTH,Faculty of Engineering, LTH,Chemical Physics,Physical and theoretical chemistry,Department of Chemistry,Departments at LTH,Faculty of Engineering, LTH,LTH Profile Area: Nanoscience and Semiconductor Technology,LTH Profile areas,Faculty of Engineering, LTH,LU Profile Area: Light and Materials,Lund University Profile areas,Helmholtz-Zentrum Berlin für Materialien und Energie GmbH(Swepub:lu)chem-eun (author)
  • Getautis, VytautasKaunas University of Technology (author)
  • Widmer-Cooper, AsaphUniversity of Sydney (author)
  • Herz, Laura M.Technical University of Munich,University of Oxford (author)
  • Snaith, Henry J.University of Oxford (author)
  • University of OxfordUniversity of Sydney (creator_code:org_t)

Related titles

  • In:Advanced Materials35:300935-9648

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