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Degradation mechani...
Degradation mechanisms of perovskite solar cells under vacuum and one atmosphere of nitrogen
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- Guo, Renjun (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Han, Dan (författare)
- Ludwig Maximilians Univ Munchen, Dept Chem, Munich, Germany.
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- Chen, Wei (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.;Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China.
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- Dai, Linjie (författare)
- Univ Cambridge, Cavendish Lab, Cambridge, England.
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- Ji, Kangyu (författare)
- Univ Cambridge, Cavendish Lab, Cambridge, England.
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- Xiong, Qiu (författare)
- Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou, Peoples R China.
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- Li, Saisai (författare)
- Nankai Univ, Dept Chem, Tianjin, Peoples R China.
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- Reb, Lennart K. (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Scheel, Manuel A. (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Pratap, Shambhavi (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Li, Nian (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Yin, Shanshan (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Xiao, Tianxiao (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Liang, Suzhe (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Oechsle, Anna Lena (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Weindl, Christian L. (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.
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- Schwartzkopf, Matthias (författare)
- Deutsch Elektronen Synchrotron DESY, Hamburg, Germany.
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- Ebert, Hubert (författare)
- Ludwig Maximilians Univ Munchen, Dept Chem, Munich, Germany.
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Gao, Peng (författare)
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- Wang, Kai (författare)
- Southern Univ Sci & Technol, Dept Elect & Elect Engn, Shenzhen, Peoples R China.;Chinese Acad Sci, Fujian Inst Res Struct Matter, Fuzhou, Peoples R China.
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- Yuan, Mingjian (författare)
- Nankai Univ, Dept Chem, Tianjin, Peoples R China.
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- Greenham, Neil C. (författare)
- Univ Cambridge, Cavendish Lab, Cambridge, England.
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- Stranks, Samuel D. (författare)
- Univ Cambridge, Cavendish Lab, Cambridge, England.
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- Roth, Stephan V. (författare)
- KTH,Biokompositer,Deutsch Elektronen Synchrotron DESY, Hamburg, Germany.;Univ Cambridge, Chem Engn & Biotechnol, Cambridge, England.
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- Friend, Richard H. (författare)
- Univ Cambridge, Cavendish Lab, Cambridge, England.
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- Muller-Buschbaum, Peter (författare)
- Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany.;Tech Univ Munich, Heinz Maier Leibnitz Zentrum, Garching, Germany.
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Tech Univ Munich, Phys Dept, Lehrstuhl Funkt Mat, Garching, Germany Ludwig Maximilians Univ Munchen, Dept Chem, Munich, Germany. (creator_code:org_t)
- 2021-10-18
- 2021
- Engelska.
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Ingår i: Nature Energy. - : Springer Nature. - 2058-7546. ; 6:10, s. 977-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
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- Extensive studies have focused on improving the operational stability of perovskite solar cells, but few have surveyed the fundamental degradation mechanisms. One aspect overlooked in earlier works is the effect of the atmosphere on device performance during operation. Here we investigate the degradation mechanisms of perovskite solar cells operated under vacuum and under a nitrogen atmosphere using synchrotron radiation-based operando grazing-incidence X-ray scattering methods. Unlike the observations described in previous reports, we find that light-induced phase segregation, lattice shrinkage and morphology deformation occur under vacuum. Under nitrogen, only lattice shrinkage appears during the operation of solar cells, resulting in better device stability. The different behaviour under nitrogen is attributed to a larger energy barrier for lattice distortion and phase segregation. Finally, we find that the migration of excessive PbI2 to the interface between the perovskite and the hole transport layer degrades the performance of devices under vacuum or under nitrogen. Understanding degradation mechanisms in perovskite solar cells is key to their development. Now, Guo et al. show a greater degradation of the perovskite structure and morphology for devices operated under vacuum than under nitrogen.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
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Guo, Renjun
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Han, Dan
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Chen, Wei
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Dai, Linjie
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Ji, Kangyu
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Xiong, Qiu
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Li, Saisai
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Reb, Lennart K.
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Scheel, Manuel A ...
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Pratap, Shambhav ...
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Li, Nian
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Yin, Shanshan
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Xiao, Tianxiao
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Liang, Suzhe
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Oechsle, Anna Le ...
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Weindl, Christia ...
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Schwartzkopf, Ma ...
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Ebert, Hubert
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Gao, Peng
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Wang, Kai
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Yuan, Mingjian
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Greenham, Neil C ...
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Stranks, Samuel ...
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Roth, Stephan V.
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Friend, Richard ...
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Muller-Buschbaum ...
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