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231225s2019 xx |||||o 00| ||eng c |
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|a 10.1002/adma.201901872
|2 doi
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|a pubmed24n0992.xml
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|a (NLM)31157474
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|a DE-627
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|a eng
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|a Xu, Xiaopeng
|e verfasserin
|4 aut
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|a Single-Junction Polymer Solar Cells with 16.35% Efficiency Enabled by a Platinum(II) Complexation Strategy
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|c 2019
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|a Text
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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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 © 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
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|a A new strategy of platinum(II) complexation is developed to regulate the crystallinity and molecular packing of polynitrogen heterocyclic polymers, optimize the morphology of the active blends, and improve the efficiency of the resulting nonfullerene polymer solar cells (NF-PSCs). The newly designed s-tetrazine (s-TZ)-containing copolymer of PSFTZ (4,8-bis(5-((2-butyloctyl)thio)-4-fluorothiophen-2-yl)benzo[1,2-b:4,5-b']dithiophene-alt-3,6-bis(4-octylthiophen-2-yl)-1,2,4,5-tetrazine) has a strong aggregation property, which results in serious phase separation and large domains when blending with Y6 ((2,2'-((2Z,2'Z)-((12,13-bis(2-ethylhexyl)-3,9-diundecyl-12,13-dihydro-[1,2,5]thiadiazolo[3,4-e]thieno[2″,3″:4',5']thieno[2',3':4,5]pyrrolo[3,2-g]thieno[2',3':4,5]thieno[3,2-b]indole-2,10-diyl)bis(methanylylidene))bis(5,6-difluoro-3-oxo-2,3-dihydro-1H-indene-2,1-diylidene))dimalononitrile)), and produces a power-conversion efficiency (PCE) of 13.03%. By adding small amount of Pt(Ph)2 (DMSO)2 (Ph, phenyl and DMSO, dimethyl sulfoxide), platinum(II) complexation would occur between Pt(Ph)2 (DMSO)2 and PSFTZ. The bulky benzene ring on the platinum(II) complex increases the steric hindrance along the polymer main chain, inhibits the polymer aggregation strength, regulates the phase separation, optimizes the morphology, and thus improves the efficiency to 16.35% in the resulting devices. 16.35% is the highest efficiency for single-junction PSCs reported so far
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|a Journal Article
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|a morphology control
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|a nonfullerene polymer solar cells
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|a platinum(II) complexation
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|a s-tetrazine
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|a wide-bandgap polymers
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|a Feng, Kui
|e verfasserin
|4 aut
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| 700 |
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|a Bi, Zhaozhao
|e verfasserin
|4 aut
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| 700 |
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|a Ma, Wei
|e verfasserin
|4 aut
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|a Zhang, Guangjun
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Peng, Qiang
|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 31(2019), 29 vom: 06. Juli, Seite e1901872
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnns
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| 773 |
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|g volume:31
|g year:2019
|g number:29
|g day:06
|g month:07
|g pages:e1901872
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|u http://dx.doi.org/10.1002/adma.201901872
|3 Volltext
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