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Jiangyong W, Erfu H, Zhibing W, ZhiYun L, Minggui X, Qing J. Novel poly(fluorene-alt-squaraine) derivatives having large coverage with solar spectrum. e-Polymers 2007. [DOI: 10.1515/epoly.2007.7.1.896] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
AbstractNovel main-chain-conjugated poly(fluorene-alt-squaraine) using vinyl as linkage group were synthesized through direct condensation of 9,9’-dioctylfluorene derivates and squaric acid. The resulting polyfluorenes were characterized by NMR and FT-IR. They have good solubility in common organic solvents, good thermal stability and electrochemical reversibility. The structure of donor-acceptor-donor interaction in the polymer backbone resulted in much more red-shifted absorption spectra of 500-1000 nm, and extremely low band gaps of ~1.2 eV have been obtained. Their absorption spectra have large coverage with solar spectrum, suggesting that they are potential materials that can be used in photovoltaic devices.
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Affiliation(s)
- Wu Jiangyong
- 1College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Huo Erfu
- 1College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Wu Zhibing
- 1College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Lu ZhiYun
- 1College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Xie Minggui
- 1College of Chemistry, Sichuan University, Chengdu 610064, China
| | - Jiang Qing
- 1College of Chemistry, Sichuan University, Chengdu 610064, China
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