高等学校化学学报 ›› 2023, Vol. 44 ›› Issue (7): 20230146.doi: 10.7503/cjcu20230146

• 研究论文 • 上一篇    下一篇

基于刚性连接单元的双缆共轭高分子材料的合成及在单组分有机太阳能电池中的应用

方海盛1, 梁世洁1, 肖承义1, 夏冬冬2(), 李韦伟1()   

  1. 1.北京化工大学材料学院, 北京软物质科学与工程高精尖创新中心&有机?无机复合材料国家重点实验室, 北京 100029
    2.江西省科学院应用化学研究所, 南昌 330096
  • 收稿日期:2023-03-29 出版日期:2023-07-10 发布日期:2023-05-06
  • 通讯作者: 夏冬冬,李韦伟 E-mail:xiadongdong16@mails.ucas.ac.cn;liweiwei@iccas.ac.cn
  • 基金资助:
    中国科技部(2018YFA0208504);北京市自然科学基金(JQ21006);国家自然科学基金(92163128);中央高校基本科研业务费(buctrc201828);有机-无机复合材料国家重点实验室开放课题(oic-202201006);超分子结构与材料国家重点实验室开放课题(sklssm202209);江西省科学院(2022YSBG22031)

Double-cable Conjugated Polymers with Rigid Linkers for Single-component Organic Solar Cells

FANG Haisheng1, LIANG Shijie1, XIAO Chengyi1, XIA Dongdong2(), LI Weiwei1()   

  1. 1.Beijing Advanced Innovation Center for Soft Matter Science and Engineering & State Key Laboratory of Organic?Inorganic Composites,College of Materials,Beijing University of Chemical Technology,Beijing 100029,China
    2.Institute of Applied Chemistry,Jiangxi Academy of Sciences,Nanchang 330096,China
  • Received:2023-03-29 Online:2023-07-10 Published:2023-05-06
  • Contact: XIA Dongdong, LI Weiwei E-mail:xiadongdong16@mails.ucas.ac.cn;liweiwei@iccas.ac.cn
  • Supported by:
    the Ministry of Science and Technology, China(2018YFA0208504);the Beijing Natural Science Foundation, China(JQ21006);the National Natural Science Foundation of China(92163128);the Fundamental Research Funds for the Central Universities, China(buctrc201828);the Open Project of State Key Laboratory of Organic-Inorganic Composites, China(oic-202201006);the Open Project of State Key Laboratory of Supramolecular Structure and Materials, China(sklssm202209);the Jiangxi Academy of Sciences, China(2022YSBG22031)

摘要:

通过调节刚性连接单元中联二噻吩的烷基链区域位置, 合成了两种新型双缆共轭高分子聚合物聚[2-(4-{3,3′-十二烷基-5′-[4-(1-{4-[5-(2-乙基己基)噻吩-2-基]-8-[5-(庚烷-3-基)噻吩-2-基]苯并[1,2-b∶4,5-b′]二噻 吩-2-基}-4,6-二酮-4H-噻吩并[3,4-C]吡咯-5(6H)-基)苯基]-[2,2′-联噻吩]-5-基}-苯基)-9-(二十三烷-12-基)蒽[2,1,9-def∶6,5,10-d′e′f′]二异喹啉-1,3,8,10(2H,9H)-四酮](FLP7)和聚[2-(4-{4,4′-十二烷基-5′-[4-(1-{4-[5-(2-乙基己基)噻吩-2-基]-8-[5-(庚烷-3-基)噻吩-2-基]苯并[1,2-b∶4,5-b′]二噻吩-2-基}-4,6-二酮-4H-噻吩并[3,4-C]吡咯-5(6H)-基)苯基]-[2,2′-联噻吩]-5-基}-苯基)-9-(二十三烷-12-基)蒽[2,1,9-def∶6,5,10-d′e′f′]二异喹啉-1,3,8,10(2H,9H)-四酮](FLP8). 这两种双缆共轭高分子聚合物基于噻吩二甲酰亚胺(TPD)给体骨架和苝酰亚胺(PBI)受体侧链. 通过调控刚性连接链上烷基链的位置, 使刚性链处烷基链的构象由朝外变为朝内, 从而改善了聚合物的自聚集能力、 薄膜形态和光电转换效率. 与FLP8聚合物相比, FLP7聚合物在单组分有机太阳能电池中表现出更高的光电性能参数, 实现了1.59%的能量转换效率.

关键词: 双缆共轭高分子, 刚性链, 自聚集, 单组分有机太阳能电池

Abstract:

Two novel double-cable conjugated polymers, poly[2-(4-{3,3′-didodecyl-5′-[4-(1-{4-[5-(2-ethylhexyl)thiophen-2-yl]-8-[5-(heptan-3-yl)thiophen-2-yl]benzo[1,2-b∶4,5-b′]dithiophen-2-yl}-4,6-dioxo-4H-thieno [3,4-c]pyrrol-5(6H)-yl)phenyl]-[2,2′-bithiophen]-5-yl}phenyl)-9-(tricosan-12-yl)anthra[2,1,9-def∶6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetraone)](FLP7) and poly[2-(4-{4,4′-didodecyl-5′-[4-(1-{4-[5-(2-ethylhexyl)thiophen-2-yl]-8-[5-(heptan-3-yl)thiophen-2-yl]benzo[1,2-b∶4,5-b′]dithiophen-2-yl}-4,6-dioxo-4H-thieno[3,4-c]pyrrol-5(6H)-yl)phenyl]-[2,2′-bithiophen]-5-yl}phenyl)-9-(tricosan-12-yl)anthra[2,1,9-def∶6,5,10-d′e′f′]diisoquinoline-1,3,8,10(2H,9H)-tetraone](FLP8), have been developed with bithiophene-based rigid linkers. These polymers were synthesized by adopting a thiophenedicarboximide(TPD) donor backbone and perylene biimide(PBI) acceptor side units. By adjusting the position of alkyl chains on the rigid linkers from external to interior, the self-aggregation capacity, film morphology and photoelectric conversion efficiency of the polymers were improved. Finally, the FLP7 polymer demonstrated superior photoelectric performance parameters as compared to the FLP8 polymer and achieved a power conversion efficiency of 1.59%.

Key words: Double-cable conjugated polymer, Rigid linker, Self-aggregation, Single-component organic solar cell

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