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Engineering of the ...
Engineering of the Back Contact between PCBM and Metal Electrode for Planar Perovskite Solar Cells with Enhanced Efficiency and Stability
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- Xiong, Shaobing (author)
- East China Normal Univ, Peoples R China
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- Yuan, Meng (author)
- Shanghai Jiao Tong Univ, Peoples R China
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- Yang, Jianming (author)
- East China Normal Univ, Peoples R China
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- Song, Jingnan (author)
- Shanghai Jiao Tong Univ, Peoples R China
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- Guo, Xuewen (author)
- East China Normal Univ, Peoples R China
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- Li, Xiang (author)
- East China Normal Univ, Peoples R China
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- Li, Bo (author)
- East China Normal Univ, Peoples R China
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- Liu, Xianjie (author)
- Linköpings universitet,Ytors Fysik och Kemi,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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- Liu, Feng (author)
- Shanghai Jiao Tong Univ, Peoples R China
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- Fahlman, Mats (author)
- Linköpings universitet,Laboratoriet för organisk elektronik,Tekniska fakulteten
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- Bao, Qinye (author)
- East China Normal Univ, Peoples R China; Shanxi Univ, Peoples R China
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(creator_code:org_t)
- 2019-06-27
- 2019
- English.
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In: Advanced Optical Materials. - : WILEY-V C H VERLAG GMBH. - 2162-7568 .- 2195-1071. ; 7:19
- Related links:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Subject headings
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- The cathode interface plays a critical role in achieving high-performance fullerene/perovskite planar solar cells. Herein, the simple molecule Isatin and its derivatives are introduced at the back contact [6,6]-phenyl-C61-butyric acid methyl ester (PCBM)/Al as a cathode modification interlayer. It is revealed that the Isatin interlayers facilitate electron transport/extraction and suppress electron recombination, attributed to the formation of negative dipole potential steps and the passivation of the interfacial trap density. The average power conversion efficiencies of the resulting devices are significantly improved by 11% from 17.68% to 19.74%, with an enhancement in all device parameters including short-circuit current, open-circuit voltage, and fill factor. The hysteresis index is found to disappear. In addition, such interlayer enhances device stability under ambient conditions compared to the control devices due to suppression of moisture-induced degradation of the perovskite films. These findings provide a comprehensive understanding of the engineering of the back contact between PCBM and the metal electrode to improve efficiency and stability of perovskite solar cells.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- back contact; cathode interface; device engineering; device stability; perovskite solar cells; solar cell efficiency
Publication and Content Type
- ref (subject category)
- art (subject category)
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- By the author/editor
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Xiong, Shaobing
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Yuan, Meng
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Yang, Jianming
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Song, Jingnan
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Guo, Xuewen
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Li, Xiang
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show more...
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Li, Bo
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Liu, Xianjie
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Duan, Chungang
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Liu, Feng
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Fahlman, Mats
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Bao, Qinye
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- About the subject
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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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Advanced Optical ...
- By the university
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Linköping University