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  • Cappel, Ute BUppsala universitet,Molekyl- och kondenserade materiens fysik (author)

Partially Reversible Photoinduced Chemical Changes in a Mixed-Ion Perovskite Material for Solar Cells.

  • Article/chapterEnglish2017

Publisher, publication year, extent ...

  • 2017-09-29
  • American Chemical Society (ACS),2017
  • printrdacarrier

Numbers

  • LIBRIS-ID:oai:DiVA.org:kth-225437
  • https://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-225437URI
  • https://doi.org/10.1021/acsami.7b10643DOI
  • https://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-340141URI

Supplementary language notes

  • Language:English
  • Summary in:English

Part of subdatabase

Classification

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

Notes

  • QC 20180416
  • ) with the element specificity and chemical sensitivity of core-level photoelectron spectroscopy. By carrying out measurements at a synchrotron beamline optimized for low X-ray fluxes, we are able to avoid sample changes due to X-ray illumination and are therefore able to monitor what sample changes are induced by visible illumination only. We find that laser illumination causes partially reversible chemistry in the surface region, including enrichment of bromide at the surface, which could be related to a phase separation into bromide- and iodide-rich phases. We also observe a partially reversible formation of metallic lead in the perovskite structure. These processes occur on the time scale of minutes during illumination. The presented methodology has a large potential for understanding light-induced chemistry in photoactive materials and could specifically be extended to systematically study the impact of morphology and composition on the photostability of metal halide perovskites.

Subject headings and genre

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

  • Svanström, SebastianUppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)sebsv792 (author)
  • Lanzilotto, ValeriaUppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)valla860 (author)
  • Johansson, Fredrik O. L.Uppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)frejo210 (author)
  • Aitola, KerttuUppsala universitet,Fysikalisk kemi(Swepub:uu)kerai404 (author)
  • Philippe, Bertrand,Dr.1986-Uppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)phibe331 (author)
  • Giangrisostomi, ErikaHelmholtz Zentrum Berlin GmbH, Inst Methods & Instrumentat Synchrotron Radiat Re, Albert Einstein Str 15, D-12489 Berlin, Germany. (author)
  • Ovsyannikov, RuslanHelmholtz Zentrum Berlin GmbH, Inst Methods & Instrumentat Synchrotron Radiat Re, Albert Einstein Str 15, D-12489 Berlin, Germany. (author)
  • Leitner, Torsten,1979-Uppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)torle615 (author)
  • Föhlisch, AlexanderHelmholtz Zentrum Berlin GmbH, Inst Methods & Instrumentat Synchrotron Radiat Re, Albert Einstein Str 15, D-12489 Berlin, Germany.;Univ Potsdam, Inst Phys & Astron, Karl Liebknecht Str 24-25, D-14476 Potsdam, Germany. (author)
  • Svensson, Svante,1947-Uppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)svansven (author)
  • Mårtensson, Nils,1949-Uppsala universitet,Molekyl- och kondenserade materiens fysik,Uppsala Berlin Joint Lab Next Generat Photoelectr, Albert Einstein Str 15, D-12489 Berlin, Germany.(Swepub:uu)nma32143 (author)
  • Boschloo, GerritUppsala universitet,Fysikalisk kemi(Swepub:uu)gerrbosc (author)
  • Lindblad, AndreasUppsala universitet,Molekyl- och kondenserade materiens fysik(Swepub:uu)anlin087 (author)
  • Rensmo, Håkan (author)
  • Uppsala universitetMolekyl- och kondenserade materiens fysik (creator_code:org_t)

Related titles

  • In:ACS Applied Materials and Interfaces: American Chemical Society (ACS)9:40, s. 34970-349781944-82441944-8252

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