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Oriented Quasi-2D P...
Oriented Quasi-2D Perovskites for High Performance Optoelectronic Devices
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- Yang, Rong (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Li, Renzhi (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Cao, Yu (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Wei, Yingqiang (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Miao, Yanfeng (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Tan, Wen Liang (author)
- Monash Univ, Australia
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- Jiao, Xuechen (author)
- Monash Univ, Australia; Australian Synchrotron ANSTO, Australia
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- Chen, Hong (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Zhang, Liangdong (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Chen, Qing (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Zhang, Huotian (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Zou, Wei (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Wang, Yuming (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- Yang, Ming (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Yi, Chang (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Wang, Nana (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Gao, Feng (author)
- Linköpings universitet,Biomolekylär och Organisk Elektronik,Tekniska fakulteten
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- McNeill, Christopher R. (author)
- Monash Univ, Australia
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- Qin, Tianshi (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Wang, Jianpu (author)
- Nanjing Tech Univ NanjingTech, Peoples R China
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- Huang, Wei (author)
- Nanjing Tech Univ NanjingTech, Peoples R China; NPU, Peoples R China
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(creator_code:org_t)
- 2018-10-21
- 2018
- English.
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In: Advanced Materials. - : WILEY-V C H VERLAG GMBH. - 0935-9648 .- 1521-4095. ; 30:51
- 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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- Quasi-2D layered organometal halide perovskites have recently emerged as promising candidates for solar cells, because of their intrinsic stability compared to 3D analogs. However, relatively low power conversion efficiency (PCE) limits the application of 2D layered perovskites in photovoltaics, due to large energy band gap, high exciton binding energy, and poor interlayer charge transport. Here, efficient and water-stable quasi-2D perovskite solar cells with a peak PCE of 18.20% by using 3-bromobenzylammonium iodide are demonstrated. The unencapsulated devices sustain over 82% of their initial efficiency after 2400 h under relative humidity of approximate to 40%, and show almost unchanged photovoltaic parameters after immersion into water for 60 s. The robust performance of perovskite solar cells results from the quasi-2D perovskite films with hydrophobic nature and a high degree of electronic order and high crystallinity, which consists of both ordered large-bandgap perovskites with the vertical growth in the bottom region and oriented small-bandgap components in the top region. Moreover, due to the suppressed nonradiative recombination, the unencapsulated photovoltaic devices can work well as light-emitting diodes (LEDs), exhibiting an external quantum efficiency of 3.85% and a long operational lifetime of approximate to 96 h at a high current density of 200 mA cm(-2) in air.
Subject headings
- NATURVETENSKAP -- Fysik -- Den kondenserade materiens fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences -- Condensed Matter Physics (hsv//eng)
Keyword
- multiple quantum wells; perovskites; solar cells; stability; two dimension
Publication and Content Type
- ref (subject category)
- art (subject category)
Find in a library
To the university's database
- By the author/editor
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Yang, Rong
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Li, Renzhi
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Cao, Yu
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Wei, Yingqiang
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Miao, Yanfeng
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Tan, Wen Liang
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show more...
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Jiao, Xuechen
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Chen, Hong
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Zhang, Liangdong
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Chen, Qing
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Zhang, Huotian
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Zou, Wei
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Wang, Yuming
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Yang, Ming
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Yi, Chang
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Wang, Nana
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Gao, Feng
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McNeill, Christo ...
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Qin, Tianshi
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Wang, Jianpu
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Huang, Wei
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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 Materia ...
- By the university
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Linköping University