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Title: | Guest Acceptors with Lower Electrostatic Potential in Ternary Organic Solar Cells for Minimizing Voltage Losses | Authors: | Yang, Shuncheng Chen, Zhenyu Zhu, Jintao Yang, Daobin Wang, Hongqian Ding, Pengfei Wu, Jie Yan, Pengyu Xie, Lin Chen, Fei WANG, Yuming Zhang, Jianqi Ge, Ziyi |
Issue Date: | 2024 | Publisher: | WILEY-V C H VERLAG GMBH | Source: | ADVANCED MATERIALS, | Status: | Early view | Abstract: | The ternary strategy, in which one guest component is introduced into one host binary system, is considered to be one of the most effective ways to realize high-efficiency organic solar cells (OSCs). To date, there is no efficient method to predict the effectiveness of guest components in ternary OSCs. Herein, three guest compositions (i.e., ANF-1, ANF-2 and ANF-3) with different electrostatic potential (ESP) are designed and synthesized by modulating the electron-withdrawing ability of the terminal groups through density functional theory simulations. The effects of the introduction of guest component into the host system (D18:N3) on the photovoltaic properties are investigated. The theoretical and experimental studies provide a key rule for guest acceptor in ternary OSCs to improve the open-circuit voltage, that is, the larger ESP difference between the guest and host acceptor, the stronger the intermolecular interactions and the higher the miscibility, which improves the luminescent efficiency of the blend film and the electroluminescence quantum yield (EQEEL) of the device by reducing the aggregation-caused-quenching, thereby effectively decreasing the non-radiative voltage loss of ternary OSCs. This work will greatly contribute to the development of highly efficient guest components, thereby promoting the rapid breakthrough of the 20% efficiency bottleneck for single-junction OSCs. A key strategy for predicting efficient guest components to minimize voltage losses in ternary organic solar cells (OSCs) is demonstrated. The larger electrostatic potential (ESP) difference between the guest acceptor and the host acceptor, the smaller non-radiative voltage losses. image | Notes: | Yang, DB; Xie, L; Ge, ZY (corresponding author), Chinese Acad Sci, Ningbo Inst Mat Technol & Engn, Zhejiang Engn Res Ctr Energy Optoelect Mat & Devic, Ningbo 315201, Peoples R China.; Yang, DB; Xie, L; Ge, ZY (corresponding author), Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China.; Wang, YM (corresponding author), Hasselt Univ, Inst Mat Res IMO IMOMEC, Wetenschapspk 1, B-3590 Diepenbeek, Belgium. yangdaobin@nimte.ac.cn; xielin@nimte.ac.cn; yuming.wang@uhasselt.be; geziyi@nimte.ac.cn |
Keywords: | electrostatic potential;high miscibility;intermolecular interactions;non-radiative voltage losses;ternary organic solar cells | Document URI: | http://hdl.handle.net/1942/42919 | ISSN: | 0935-9648 | e-ISSN: | 1521-4095 | DOI: | 10.1002/adma.202401789 | ISI #: | 001200750100001 | Rights: | 2024 Wiley-VCH Gmb | Category: | A1 | Type: | Journal Contribution |
Appears in Collections: | Research publications |
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Advanced Materials - 2024 - Yang - Guest Acceptors with Lower Electrostatic Potential in Ternary Organic Solar Cells for.pdf Restricted Access | Published version | 4.33 MB | Adobe PDF | View/Open Request a copy |
auteursversie.pdf Until 2024-09-05 | Peer-reviewed author version | 1.81 MB | Adobe PDF | View/Open Request a copy |
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