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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201706124
|2 doi
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|a pubmed25n0933.xml
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|a (DE-627)NLM279964234
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|a (NLM)29334160
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Luo, Zhenghui
|e verfasserin
|4 aut
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|a Fine-Tuning of Molecular Packing and Energy Level through Methyl Substitution Enabling Excellent Small Molecule Acceptors for Nonfullerene Polymer Solar Cells with Efficiency up to 12.54
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 01.08.2018
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|a Date Revised 30.09.2020
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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 A novel small molecule acceptor MeIC with a methylated end-capping group is developed. Compared to unmethylated counterparts (ITCPTC), MeIC exhibits a higher lowest unoccupied molecular orbital (LUMO) level value, tighter molecular packing, better crystallites quality, and stronger absorption in the range of 520-740 nm. The MeIC-based polymer solar cells (PSCs) with J71 as donor, achieve high power conversion efficiency (PCE), up to 12.54% with a short-circuit current (JSC ) of 18.41 mA cm-2 , significantly higher than that of the device based on J71:ITCPTC (11.63% with a JSC of 17.52 mA cm-2 ). The higher JSC of the PSC based on J71:MeIC can be attributed to more balanced μh /μe , higher charge dissociation and charge collection efficiency, better molecular packing, and more proper phase separation features as indicated by grazing incident X-ray diffraction and resonant soft X-ray scattering results. It is worth mentioning that the as-cast PSCs based on MeIC also yield a high PCE of 11.26%, which is among the highest value for the as-cast nonfullerene PSCs so far. Such a small modification that leads to so significant an improvement of the photovoltaic performance is a quite exciting finding, shining a light on the molecular design of the nonfullerene acceptors
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|a Journal Article
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|a molecular packing
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|a polymer solar cells
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|a power conversion efficiencies
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|a small molecular acceptors
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|a Bin, Haijun
|e verfasserin
|4 aut
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|a Liu, Tao
|e verfasserin
|4 aut
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|a Zhang, Zhi-Guo
|e verfasserin
|4 aut
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|a Yang, Yankang
|e verfasserin
|4 aut
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|a Zhong, Cheng
|e verfasserin
|4 aut
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|a Qiu, Beibei
|e verfasserin
|4 aut
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| 700 |
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|a Li, Guanghao
|e verfasserin
|4 aut
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| 700 |
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|a Gao, Wei
|e verfasserin
|4 aut
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|a Xie, Dongjun
|e verfasserin
|4 aut
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|a Wu, Kailong
|e verfasserin
|4 aut
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|a Sun, Yanming
|e verfasserin
|4 aut
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| 700 |
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|a Liu, Feng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Li, Yongfang
|e verfasserin
|4 aut
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| 700 |
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|a Yang, Chuluo
|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), 9 vom: 07. März
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:30
|g year:2018
|g number:9
|g day:07
|g month:03
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|u http://dx.doi.org/10.1002/adma.201706124
|3 Volltext
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