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Oxygen- and Water-I...
Oxygen- and Water-Induced Energetics Degradation in Organometal Halide Perovskites
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- Yang, Jianming (author)
- East China Normal Univ, Peoples R China
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- Yuan, Zhongcheng (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Liu, Xianjie (author)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten
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- Braun, Slawomir (author)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten
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- Li, Yanqing (author)
- Soochow Univ, Peoples R China
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- Tang, Jianxin (author)
- Soochow Univ, Peoples R China
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- Gao, Feng (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Duan, Chungang (author)
- East China Normal Univ, Peoples R China; Shanxi Univ, Peoples R China
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- Fahlman, Mats (author)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten
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- Bao, Qinye (author)
- Linköpings universitet,Ytors Fysik och Kemi,Tekniska fakulteten,East China Normal Univ, Peoples R China
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(creator_code:org_t)
- 2018-04-13
- 2018
- English.
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In: ACS Applied Materials and Interfaces. - : AMER CHEMICAL SOC. - 1944-8244 .- 1944-8252. ; 10:18, s. 16225-16230
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Abstract
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- 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
- NATURVETENSKAP -- Kemi -- Annan kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Other Chemistry Topics (hsv//eng)
Keyword
- organometal halide perovskites; energetics; oxygen/water; in situ; degradation
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Yang, Jianming
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Yuan, Zhongcheng
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Liu, Xianjie
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Braun, Slawomir
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Li, Yanqing
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Tang, Jianxin
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show more...
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Gao, Feng
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Duan, Chungang
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Fahlman, Mats
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Bao, Qinye
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show less...
- 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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and Other Chemistry ...
- Articles in the publication
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ACS Applied Mate ...
- By the university
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Linköping University