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Partially Reversibl...
Partially Reversible Photoinduced Chemical Changes in a Mixed-Ion Perovskite Material for Solar Cells.
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- Cappel, Ute B (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Svanström, Sebastian (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Lanzilotto, Valeria (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Johansson, Fredrik O. L. (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Aitola, Kerttu (author)
- Uppsala universitet,Fysikalisk kemi
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- Philippe, Bertrand, Dr. 1986- (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Giangrisostomi, Erika (author)
- Helmholtz Zentrum Berlin GmbH, Inst Methods & Instrumentat Synchrotron Radiat Re, Albert Einstein Str 15, D-12489 Berlin, Germany.
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- Ovsyannikov, Ruslan (author)
- Helmholtz Zentrum Berlin GmbH, Inst Methods & Instrumentat Synchrotron Radiat Re, Albert Einstein Str 15, D-12489 Berlin, Germany.
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- Leitner, Torsten, 1979- (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Föhlisch, Alexander (author)
- Helmholtz 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.
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- Svensson, Svante, 1947- (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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- Mårtensson, Nils, 1949- (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik,Uppsala Berlin Joint Lab Next Generat Photoelectr, Albert Einstein Str 15, D-12489 Berlin, Germany.
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- Boschloo, Gerrit (author)
- Uppsala universitet,Fysikalisk kemi
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- Lindblad, Andreas (author)
- Uppsala universitet,Molekyl- och kondenserade materiens fysik
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Rensmo, Håkan (author)
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(creator_code:org_t)
- 2017-09-29
- 2017
- English.
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In: ACS Applied Materials and Interfaces. - : American Chemical Society (ACS). - 1944-8244 .- 1944-8252. ; 9:40, s. 34970-34978
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https://uu.diva-port... (primary) (Raw object)
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Abstract
Subject headings
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- ) 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
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- ion migration
- laser illumination
- lead halide perovskite
- phase separation
- photoelectron spectroscopy
- stability
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Cappel, Ute B
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Svanström, Sebas ...
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Lanzilotto, Vale ...
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Johansson, Fredr ...
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Aitola, Kerttu
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Philippe, Bertra ...
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Giangrisostomi, ...
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Ovsyannikov, Rus ...
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Leitner, Torsten ...
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Föhlisch, Alexan ...
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Svensson, Svante ...
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Mårtensson, Nils ...
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Boschloo, Gerrit
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Lindblad, Andrea ...
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Rensmo, Håkan
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- About the subject
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Chemical Science ...
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- NATURAL SCIENCES
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NATURAL SCIENCES
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and Physical Science ...
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and Condensed Matter ...
- Articles in the publication
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ACS Applied Mate ...
- By the university
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Royal Institute of Technology
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Uppsala University