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- Title
Synthesis and photovoltaic properties of fluorene-based copolymers with pendent donor-acceptor units.
- Authors
Hou, Qiong; Jia, Tao; Liu, Jungen; Luo, Suilian; Shi, Guang
- Abstract
Two fluorene-based copolymers comprising identical pendent triphenylamine (donor)-benzothiadiazole (acceptor) unit on the C9 site of fluorene but different conjugated main chain structures were synthesized by Pd-catalyzed Stille reaction. The thermal, photophysical, electrochemical and photovoltaic properties are studied. The polymers have strong absorption in 300-650 nm. The bulk heterojunction solar cells were fabricated with the copolymers as the donors and PCBM as the acceptor in a 1:3 weight ratio in the device configuration ITO/PEODT/copolymer:PCBM (1:3)/LiF/Al. The power conversion efficiency of the device based on copolymer PF-BTh-DTS is 1.1 % with open-circuit voltage ( V) 0.84 V under simulated AM 1.5 G solar irradiation (100 mW/cm). Graphical Abstract: [Figure not available: see fulltext.]
- Subjects
FLUORENE; ELECTRON donor-acceptor complexes; COPOLYMERS; CHEMICAL synthesis; TRIPHENYLAMINE; ELECTROCHEMISTRY; SOLAR radiation
- Publication
Journal of Materials Science: Materials in Electronics, 2013, Vol 24, Issue 11, p4284
- ISSN
0957-4522
- Publication type
Article
- DOI
10.1007/s10854-013-1398-5