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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201706571
|2 doi
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|a pubmed24n0938.xml
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|a eng
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| 100 |
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|a Dai, Shuixing
|e verfasserin
|4 aut
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|a Enhancing the Performance of Polymer Solar Cells via Core Engineering of NIR-Absorbing Electron Acceptors
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Completed 01.08.2018
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|a Date Revised 01.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a © 2018 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a In order to utilize the near-infrared (NIR) solar photons like silicon-based solar cells, extensive research efforts have been devoted to the development of organic donor and acceptor materials with strong NIR absorption. However, single-junction organic solar cells (OSCs) with photoresponse extending into >1000 nm and power conversion efficiency (PCE) >11% have rarely been reported. Herein, three fused-ring electron acceptors with varying core size are reported. These three molecules exhibit strong absorption from 600 to 1000 nm and high electron mobility (>1 × 10-3 cm2 V-1 s-1 ). It is proposed that core engineering is a promising approach to elevate energy levels, enhance absorption and electron mobility, and finally achieve high device performance. This approach can maximize both short-circuit current density ( JSC ) and open-circuit voltage (VOC ) at the same time, differing from the commonly used end group engineering that is generally unable to realize simultaneous enhancement in both VOC and JSC . Finally, the single-junction OSCs based on these acceptors in combination with the widely polymer donor PTB7-Th yield JSC as high as 26.00 mA cm-2 and PCE as high as 12.3%
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|a Journal Article
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|a NIR absorption
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|a core engineering
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|a fused-ring electron acceptor
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|a nonfullerene
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|a polymer solar cell
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|a Li, Tengfei
|e verfasserin
|4 aut
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|a Wang, Wei
|e verfasserin
|4 aut
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|a Xiao, Yiqun
|e verfasserin
|4 aut
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|a Lau, Tsz-Ki
|e verfasserin
|4 aut
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|a Li, Zeyuan
|e verfasserin
|4 aut
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|a Liu, Kuan
|e verfasserin
|4 aut
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|a Lu, Xinhui
|e verfasserin
|4 aut
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| 700 |
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|a Zhan, Xiaowei
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Advanced materials (Deerfield Beach, Fla.)
|d 1998
|g 30(2018), 15 vom: 17. Apr., Seite e1706571
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|g volume:30
|g year:2018
|g number:15
|g day:17
|g month:04
|g pages:e1706571
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|u http://dx.doi.org/10.1002/adma.201706571
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