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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202102787
|2 doi
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|a pubmed25n1096.xml
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|a eng
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| 100 |
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|a Wang, Jianqiu
|e verfasserin
|4 aut
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| 245 |
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|a A Tandem Organic Photovoltaic Cell with 19.6% Efficiency Enabled by Light Distribution Control
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
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|2 rdacarrier
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|a Date Revised 04.10.2021
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2021 Wiley-VCH GmbH.
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|a Despite more potential in realizing higher photovoltaic performance, the highest power conversion efficiency (PCE) of tandem organic photovoltaic (OPV) cells still lags behind that of state-of-the-art single-junction cells. In this work, highly efficient double-junction tandem OPV cells are fabricated by optimizing the photoactive layers with low voltage losses and developing an effective method to tune optical field distribution. The tandem OPV cells studied are structured as indium tin oxide (ITO)/ZnO/bottom photoactive layer/interconnecting layer (ICL)/top photoactive layer/MoOx /Ag, where the bottom and top photoactive layers are based on blends of PBDB-TF:ITCC and PBDB-TF:BTP-eC11, respectively, and ICL refers to interconnecting layer structured as MoOx /Ag/ZnO:PFN-Br. As these results indicate that there is not much room for optimizing the bottom photoactive layer, more effort is put into fine-tuning the top photoactive layer. By rationally modulating the composition and thickness of PBDB-TF:BTP-eC11 blend films, the 300 nm-thick PBDB-TF:BTP-eC11 film with 1:2 D/A ratio is found to be an ideal photoactive layer for the top sub-cell in terms of photovoltaic characteristics and light distribution control. For the optimized tandem cell, a PCE of 19.64% is realized, which is the highest result in the OPV field and certified as 19.50% by the National Institute of Metrology
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|a Journal Article
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|a D/A ratio
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|a light distribution control
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| 650 |
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|a organic photovoltaics
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|a power conversion efficiency
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| 650 |
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4 |
|a tandem photovoltaic cells
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|a Zheng, Zhong
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zu, Yunfei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Yafei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Liu, Xiaoyu
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Shaoqing
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Zhang, Maojie
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Hou, Jianhui
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 33(2021), 39 vom: 06. Okt., Seite e2102787
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:33
|g year:2021
|g number:39
|g day:06
|g month:10
|g pages:e2102787
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|u http://dx.doi.org/10.1002/adma.202102787
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