https://scholars.lib.ntu.edu.tw/handle/123456789/576249
標題: | A Simple Dithieno[3,2-b:2′,3′-d]pyrrol-Rhodanine Molecular Third Component Enables Over 16.7% Efficiency and Stable Organic Solar Cells | 作者: | Wang H Yang L Lin P.-C Chueh C.-C Liu X Qu S Guang S Yu J Tang W. CHU-CHEN CHUEH |
關鍵字: | Additives; Aromatic compounds; Chlorine compounds; Conversion efficiency; Cost effectiveness; Energy transfer; Thermal aging; Binary blends; Cost effective; Device stability; Exciton dissociation; Photovoltaic parameters; Power conversion efficiencies; Structure design; Third component; Organic solar cells | 公開日期: | 2021 | 卷: | 17 | 期: | 18 | 來源出版物: | Small | 摘要: | Organic solar cells (OSCs) can achieve greatly improved power conversion efficiency (PCE) by incorporating suitable additives in active layers. Their structure design often faces the challenge of operation generality for more binary blends. Herein, a simple dithieno[3,2-b:2′,3′-d]pyrrole-rhodanine molecule (DR8) featuring high compatibility with polymer donor PM6 is developed as a cost-effective third component. By employing classic ITIC-like ITC6-4Cl and Y6 as model nonfullerene acceptors (NFAs) in PM6-based binary blends, DR8 added PM6:ITC6-4Cl blends exhibit significantly promoted energy transfer and exciton dissociation. The PM6:ITC6-4Cl:DR8 (1:1:0.1, weight ratio) OSCs contribute an exciting PCE of 14.94% in comparison to host binary devices (13.52%), while PM6:Y6:DR8 (1:1.2:0.1) blends enable 16.73% PCE with all simultaneously improved photovoltaic parameters. To the best of the knowledge, this performance is among the best for ternary OSCs with simple small molecular third components in the literature. More importantly, DR8-added ternary OSCs exhibit much improved device stability against thermal aging and light soaking over binary ones. This work provides new insight on the design of efficient third components for OSCs. ? 2021 Wiley-VCH GmbH |
URI: | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102612830&doi=10.1002%2fsmll.202007746&partnerID=40&md5=a6c011a8d7a8581390317d981575704c https://scholars.lib.ntu.edu.tw/handle/123456789/576249 |
ISSN: | 16136810 | DOI: | 10.1002/smll.202007746 | SDG/關鍵字: | Additives; Aromatic compounds; Chlorine compounds; Conversion efficiency; Cost effectiveness; Energy transfer; Thermal aging; Binary blends; Cost effective; Device stability; Exciton dissociation; Photovoltaic parameters; Power conversion efficiencies; Structure design; Third component; Organic solar cells |
顯示於: | 化學工程學系 |
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