有机太阳能电池
共轭体系
噻吩
能量转换效率
材料科学
光伏系统
电子受体
芴
光化学
化学
有机化学
聚合物
光电子学
生态学
生物
复合材料
作者
Shreyam Chatterjee,Yutaka Ie
出处
期刊:Journal of Photopolymer Science and Technology
[The Technical Association of Photopolymers, Japan]
日期:2022-12-16
卷期号:35 (2): 187-191
被引量:1
标识
DOI:10.2494/photopolymer.35.187
摘要
The progress of organic solar cells (OSCs) largely depends on the development of nonfullerene acceptors (NFAs) based on electron-accepting π-conjugated compounds. Therefore, the creation of its building unit is important to tune the properties and increase the OSC performance. In this contribution, a new electron-accepting building unit, fluoranthenedione (FDO), was designed by extending the π-conjugation of representative indene-1,3-dione (IDO) framework. The electron-accepting π-conjugated compound (FL-FDO) composed of thiophene-linked fluorene (FL) as a central unit and FDO as terminal units was designed and synthesized. Compared to the corresponding IDO-containing NFAs, the introduction of FDO led to the red-shifted absorption and increased frontier orbital energy levels. The OSCs based on FL-FDO and poly(3-hexylthiophene) (P3HT) as a donor showed improved power conversion efficiency, compared to the P3HT/FL-IDO-based devices. These results indicate that the FDO unit has the potential to act as a promising terminal unit of NFAs.
科研通智能强力驱动
Strongly Powered by AbleSci AI