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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1002/adma.202302861
|2 doi
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|a pubmed25n1188.xml
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|a (DE-627)NLM356672549
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|a (NLM)37164341
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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 Fan, Baobing
|e verfasserin
|4 aut
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|a Understanding the Role of Removable Solid Additives
|b Selective Interaction Contributes to Vertical Component Distributions
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|c 2023
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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 Revised 11.08.2023
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|a published: Print-Electronic
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|a Citation Status Publisher
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|a © 2023 Wiley-VCH GmbH.
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|a Sequentially deposited organic solar cells (SD-OSCs) have attracted great attention owing to their ability in achieving a more favorable, vertically phase-separated morphology to avoid the accumulation of counter charges at absorber/transporting layer interfaces. However, the processing of SD-OSCs is still quite challenging in preventing the penetration of small-molecule acceptors into the polymer donor layer via erosion or swelling. Herein, solid additives (SAs) with varied electrostatic potential distributions and steric hinderance are introduced into SD-OSCs to investigate the effect of evaporation dynamics and selective interaction on vertical component distribution. Multiple modelings indicate that the π-π interaction dominates the interactions between aromatic SAs and active layer components. Among them, p-dibromobenzene shows a stronger interaction with the donor while 2-chloronaphthalene (2-CN) interacts more preferably with acceptor. Combining the depth-dependent morphological study aided by multiple X-ray scattering methods, it is concluded that the evaporation of SAs can drive the stronger-interaction component upward to the surface, while having minor impact on the overall molecular packing. Ultimately, the 2-CN-treated devices with reduced acceptor concentration at the bottom surface deliver a high power conversion efficiency of 19.2%, demonstrating the effectiveness of applying selective interactions to improve the vertical morphology of OSCs by using SAs with proper structure
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|a Journal Article
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|a evaporation dynamics
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|a organic solar cells
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|a selective interactions
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|a solid additives
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| 650 |
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|a vertical component distribution
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|a Zhong, Wenkai
|e verfasserin
|4 aut
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|a Gao, Wei
|e verfasserin
|4 aut
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| 700 |
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|a Fu, Huiting
|e verfasserin
|4 aut
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|a Lin, Francis R
|e verfasserin
|4 aut
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|a Wong, Reese W-Y
|e verfasserin
|4 aut
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|a Liu, Ming
|e verfasserin
|4 aut
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| 700 |
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|a Zhu, Chenhui
|e verfasserin
|4 aut
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| 700 |
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|a Wang, Cheng
|e verfasserin
|4 aut
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| 700 |
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|a Yip, Hin-Lap
|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 |
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|a Jen, Alex K-Y
|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 35(2023), 32 vom: 05. Aug., Seite e2302861
|w (DE-627)NLM098206397
|x 1521-4095
|7 nnas
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| 773 |
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|g volume:35
|g year:2023
|g number:32
|g day:05
|g month:08
|g pages:e2302861
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|u http://dx.doi.org/10.1002/adma.202302861
|3 Volltext
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|d 35
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