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Sökning: id:"swepub:oai:DiVA.org:liu-196831" > In Situ Reconstruct...

  • Jiang, ShengEast China Normal Univ, Peoples R China (författare)

In Situ Reconstruction of Hole-Selective Perovskite Heterojunction with Graded Energetics Toward Highly Efficient and Stable Solar Cells

  • Artikel/kapitelEngelska2023

Förlag, utgivningsår, omfång ...

  • WILEY-V C H VERLAG GMBH,2023
  • printrdacarrier

Nummerbeteckningar

  • LIBRIS-ID:oai:DiVA.org:liu-196831
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-196831URI
  • https://doi.org/10.1002/aenm.202300983DOI

Kompletterande språkuppgifter

  • Språk:engelska
  • Sammanfattning på:engelska

Ingår i deldatabas

Klassifikation

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

Anmärkningar

  • Funding Agencies|National Natural Science Foundation of China [22279034, 52261145698]; National Key Research and Development Program of China [2022YFB3803300]; Shanghai Science and Technology Innovation Action Plan [22ZR1418900]; Fundamental Research Funds for the Central Universities; East China Normal University (ECNU) Multifunctional Platform for Innovation; China Postdoctoral Science Foundation [BX20220089]
  • Perovskite solar cells (PSCs) have demonstrated a high power conversion efficiency, however, the large energy loss due to non-radiative recombination is the main challenge for further performance enhancement. Here, a surface treatment strategy is developed by heat-induced decomposition of a thin interlayer 2,7-Naphthaleneditriflate (NAP) to in situ reconstruct perovskite energetics. It is verified that the reconstructed perovskite surface energetics match better with the upper hole transport layer compared to the intrinsic condition. Spontaneous generation of n/n(-) homojunctions between the perovskite film bulk and the surface region promotes hole extraction, enhancing built-in electric field, and thus significantly suppresses charge recombination at such perovskite hole-selective heterojunctions. Moreover, the surface decomposed fluorine-rich complexes passivate the defects and improve the crystallinity of the perovskite film. These advantages are confirmed by a remarkably improved efficiency from 20.52% for the control device to 23.37% for the treated one with excellent stability. The work provides a promising approach of in situ reconstructing perovskite surface and interface for the design of highly efficient and stable PSCs.

Ämnesord och genrebeteckningar

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

  • Xiong, ShaobingEast China Normal Univ, Peoples R China; Fudan Univ, Peoples R China (författare)
  • Wu, HongboDonghua Univ, Peoples R China (författare)
  • Zhao, DongyangEast China Normal Univ, Peoples R China (författare)
  • You, XiaomengEast China Normal Univ, Peoples R China (författare)
  • Xu, YehuiEast China Normal Univ, Peoples R China (författare)
  • Jia, MenghuiEast China Normal Univ, Peoples R China (författare)
  • Bai, WeiEast China Normal Univ, Peoples R China (författare)
  • Ma, ZaifeiDonghua Univ, Peoples R China (författare)
  • Liu, Xianjie,1971-Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten(Swepub:liu)xiali21 (författare)
  • Yao, YefengEast China Normal Univ, Peoples R China (författare)
  • Sun, ZhenrongEast China Normal Univ, Peoples R China (författare)
  • Bao, QinyeEast China Normal Univ, Peoples R China; Fudan Univ, Peoples R China; Shanxi Univ, Peoples R China (författare)
  • East China Normal Univ, Peoples R ChinaEast China Normal Univ, Peoples R China; Fudan Univ, Peoples R China (creator_code:org_t)

Sammanhörande titlar

  • Ingår i:Advanced Energy Materials: WILEY-V C H VERLAG GMBH13:271614-68321614-6840

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