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- Yang, JianmingEast China Normal Univ, Peoples R China (author)
Unraveling Photostability of Mixed Cation Perovskite Films in Extreme Environment
- Article/chapterEnglish2018
Publisher, publication year, extent ...
- 2018-08-05
- WILEY-V C H VERLAG GMBH,2018
- printrdacarrier
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- LIBRIS-ID:oai:DiVA.org:liu-152618
- https://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-152618URI
- https://doi.org/10.1002/adom.201800262DOI
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- Language:English
- Summary in:English
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- Funding Agencies|National Science Foundation of China [11604099, 11474214, 51811530011, 11774092]; Shanghai Science and Technology Innovation Action Plan [17JC1402500]; 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 [2009 00971]; China Scholarship Council; Fundamental Research Funds for the Central Universities
- Organometal halide perovskites exhibit a bright future for applications in solar cells, as efficiency has achieved over 22%. The long-term stability remains a major obstacle for commercialization. Here, it is found that three cationic compositional engineered perovskites, MAPb(I0.83Br0.17)(3), FA(0.83)MA(0.17)Pb(I0.83Br0.17)(3), and Cs-0.1(FA(0.83)MA(0.17))(0.9)Pb(I0.83Br0.17)(3), undergo severe degradation under white-light illumination in ultrahigh vacuum (UHV) environment, but the rate of degradation is significantly lower for the mixed cation perovskites. This is attributed to the defect-induced trap states that trigger the strong coupling between the photoexcited carriers and the crystal lattice. The observed behavior supports the view of the mixed cations suppressing the photoinduced degradation. It is further demonstrated that UHV environment remarkably accelerates the degradation of the perovskite films under illumination, which delivers a very important message that the current hybrid perovskite materials and their optoelectronic devices are not suitable for application in outer space. Moreover, the applied UHV environment can be an accelerated test method to estimate the photostability of the perovskites.
Subject headings and genre
- TEKNIK OCH TEKNOLOGIER Kemiteknik Polymerteknologi hsv//swe
- ENGINEERING AND TECHNOLOGY Chemical Engineering Polymer Technologies hsv//eng
- extreme environment; mixed cation perovskite films; perovskite solar cells; photoinduced degradation; ultrahigh vacuum
Added entries (persons, corporate bodies, meetings, titles ...)
- Hong, QiumingSoochow Univ, Peoples R China (author)
- Yuan, ZhongchengLinköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten(Swepub:liu)zhoyu49 (author)
- Xu, RuipengSoochow Univ, Peoples R China (author)
- Guo, XuewenEast China Normal Univ, Peoples R China (author)
- Xiong, ShaobingEast China Normal Univ, Peoples R China (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)
- 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; Shanxi Univ, Peoples R China; Soochow Univ, Peoples R China(Swepub:liu)qinba41 (author)
- East China Normal Univ, Peoples R ChinaSoochow Univ, Peoples R China (creator_code:org_t)
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- In:Advanced Optical Materials: WILEY-V C H VERLAG GMBH6:202162-75682195-1071
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