The Role of Solution Aggregation Property toward High-Efficiency Non-Fullerene Organic Photovoltaic Cells

The Role of Solution Aggregation Property toward High-Efficiency Non-Fullerene Organic Photovoltaic Cells

© 2024 Wiley‐VCH GmbH.

Bibliographische Detailangaben
Veröffentlicht in:Advanced materials (Deerfield Beach, Fla.). - 1998. - 36(2024), 28 vom: 02. Juli, Seite e2403476
1. Verfasser: Xu, Lei (VerfasserIn)
Weitere Verfasser: Li, Sunsun, Zhao, Wenchao, Xiong, Yaomeng, Yu, Jinfeng, Qin, Jinzhao, Wang, Gang, Zhang, Rui, Zhang, Tao, Mu, Zhen, Zhao, Jingjing, Zhang, Yuyang, Zhang, Shaoqing, Kuvondikov, Vakhobjon, Zakhidov, Erkin, Peng, Qiming, Wang, Nana, Xing, Guichuan, Gao, Feng, Hou, Jianhui, Huang, Wei, Wang, Jianpu
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2024
Zugriff auf das übergeordnete Werk:Advanced materials (Deerfield Beach, Fla.)
Schlagworte:Journal Article aggregation kinetics film morphology non‐fullerene organic photovoltaic cells solution‐aggregation effects
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520 |a In organic photovoltaic cells, the solution-aggregation effect (SAE) is long considered a critical factor in achieving high power-conversion efficiencies for polymer donor (PD)/non-fullerene acceptor (NFA) blend systems. However, the underlying mechanism has yet to be fully understood. Herein, based on an extensive study of blends consisting of the representative 2D-benzodithiophene-based PDs and acceptor-donor-acceptor-type NFAs, it is demonstrated that SAE shows a strong correlation with the aggregation kinetics during solidification, and the aggregation competition between PD and NFA determines the phase separation of blend film and thus the photovoltaic performance. PDs with strong SAEs enable earlier aggregation evolutions than NFAs, resulting in well-known polymer-templated fibrillar network structures and superior PCEs. With the weakening of PDs' aggregation effects, NFAs, showing stronger tendencies to aggregate, tend to form oversized domains, leading to significantly reduced external quantum efficiencies and fill factors. These trends reveal the importance of matching SAE between PD and NFA. The aggregation abilities of various materials are further evaluated and the aggregation ability/photovoltaic parameter diagrams of 64 PD/NFA combinations are provided. This work proposes a guiding criteria and facile approach to match efficient PD/NFA systems 
650 4 |a Journal Article 
650 4 |a aggregation kinetics 
650 4 |a film morphology 
650 4 |a non‐fullerene 
650 4 |a organic photovoltaic cells 
650 4 |a solution‐aggregation effects 
700 1 |a Li, Sunsun  |e verfasserin  |4 aut 
700 1 |a Zhao, Wenchao  |e verfasserin  |4 aut 
700 1 |a Xiong, Yaomeng  |e verfasserin  |4 aut 
700 1 |a Yu, Jinfeng  |e verfasserin  |4 aut 
700 1 |a Qin, Jinzhao  |e verfasserin  |4 aut 
700 1 |a Wang, Gang  |e verfasserin  |4 aut 
700 1 |a Zhang, Rui  |e verfasserin  |4 aut 
700 1 |a Zhang, Tao  |e verfasserin  |4 aut 
700 1 |a Mu, Zhen  |e verfasserin  |4 aut 
700 1 |a Zhao, Jingjing  |e verfasserin  |4 aut 
700 1 |a Zhang, Yuyang  |e verfasserin  |4 aut 
700 1 |a Zhang, Shaoqing  |e verfasserin  |4 aut 
700 1 |a Kuvondikov, Vakhobjon  |e verfasserin  |4 aut 
700 1 |a Zakhidov, Erkin  |e verfasserin  |4 aut 
700 1 |a Peng, Qiming  |e verfasserin  |4 aut 
700 1 |a Wang, Nana  |e verfasserin  |4 aut 
700 1 |a Xing, Guichuan  |e verfasserin  |4 aut 
700 1 |a Gao, Feng  |e verfasserin  |4 aut 
700 1 |a Hou, Jianhui  |e verfasserin  |4 aut 
700 1 |a Huang, Wei  |e verfasserin  |4 aut 
700 1 |a Wang, Jianpu  |e verfasserin  |4 aut 
773 0 8 |i Enthalten in  |t Advanced materials (Deerfield Beach, Fla.)  |d 1998  |g 36(2024), 28 vom: 02. Juli, Seite e2403476  |w (DE-627)NLM098206397  |x 1521-4095  |7 nnns 
773 1 8 |g volume:36  |g year:2024  |g number:28  |g day:02  |g month:07  |g pages:e2403476 
856 4 0 |u http://dx.doi.org/10.1002/adma.202403476  |3 Volltext 
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