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  • Yang, JianmingEast China Normal Univ, Peoples R China (author)

Oxygen- and Water-Induced Energetics Degradation in Organometal Halide Perovskites

  • Article/chapterEnglish2018

Publisher, publication year, extent ...

  • 2018-04-13
  • AMER CHEMICAL SOC,2018
  • electronicrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:liu-148390
  • https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-148390URI
  • https://doi.org/10.1021/acsami.8b04182DOI

Supplementary language notes

  • Language:English
  • Summary in:English

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Classification

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

Notes

  • Funding Agencies|National Science Foundation of China [11604099]; Fundamental Research Funds for the Central Universities; Swedish Research Council [2016-05498]; Goran Gustafsson Foundation for Research in Nature Sciences and Medicine; Swedish Government Strategic Research Area in Materials Science on Functional Materials at Linkoping University (Faculty Grant SFO Mat LiU) [2009 00971]; China Scholarship Council; Open Project of Jiangsu Key Laboratory for Carbon Based Functional Materials Devices
  • Organometal halide perovskites are under rapid development, and significant focus has been placed on their stability that currently presents a major obstacle for practical application. Energetics plays a vital role in charge injection/extraction and transport properties in devices. Here, we in situ investigate oxygen and water-induced energetics degradation in organometal halide perovskite films. Oxygen gas induces an upward shift of the vacuum level of the perovskite films because of the formation of an oxygen induced surface dipole, water vapor causes a significant vacuum-level downshift, and the valence band binding energy referenced to the Fermi level simultaneously increases so as to keep the ionization potential of the perovskite films unchanged. Moreover, the chemical compositions, crystalline structures, surface morphologies, and dynamical properties also are monitored and analyzed in detail. These results are indispensable to understand the degradation mechanisms and to perform the optimizations of stable materials and devices in the future.

Subject headings and genre

Added entries (persons, corporate bodies, meetings, titles ...)

  • Yuan, ZhongchengLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)zhoyu49 (author)
  • Liu, XianjieLinköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten(Swepub:liu)xiali21 (author)
  • Braun, SlawomirLinköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten(Swepub:liu)slama19 (author)
  • Li, YanqingSoochow Univ, Peoples R China (author)
  • Tang, JianxinSoochow Univ, Peoples R China (author)
  • Gao, FengLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)fenga88 (author)
  • Duan, ChungangEast China Normal Univ, Peoples R China; Shanxi Univ, Peoples R China (author)
  • Fahlman, MatsLinköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten(Swepub:liu)matfa21 (author)
  • Bao, QinyeLinköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten,East China Normal Univ, Peoples R China(Swepub:liu)qinba41 (author)
  • East China Normal Univ, Peoples R ChinaBiomolekylär och Organisk Elektronik (creator_code:org_t)

Related titles

  • In:ACS Applied Materials and Interfaces: AMER CHEMICAL SOC10:18, s. 16225-162301944-82441944-8252

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