引用本文:
Wei Zhang, Zheng Wang, Yu Sheng Tang, Zhi Gang Xu, Ying Li, Qing Jiang. Synthesis and properties of novel low band-gap polymers beating squaraine units[J]. Chinese Chemical Letters,
2010, 21(2): 245-248.
doi:
10.1016/j.cclet.2009.09.003
Citation: Wei Zhang, Zheng Wang, Yu Sheng Tang, Zhi Gang Xu, Ying Li, Qing Jiang. Synthesis and properties of novel low band-gap polymers beating squaraine units[J]. Chinese Chemical Letters, 2010, 21(2): 245-248. doi: 10.1016/j.cclet.2009.09.003
Citation: Wei Zhang, Zheng Wang, Yu Sheng Tang, Zhi Gang Xu, Ying Li, Qing Jiang. Synthesis and properties of novel low band-gap polymers beating squaraine units[J]. Chinese Chemical Letters, 2010, 21(2): 245-248. doi: 10.1016/j.cclet.2009.09.003
Synthesis and properties of novel low band-gap polymers beating squaraine units
摘要:
Novel main-chain-conjugated poly(carbazol-alt-squaraine)and poly(dipyridyl-alt-squaraine)were successfully synthesized through direct polycondensation of 9-(2-ethylhexyl)carbazole-bridged or dipyridyl-bridged bispyrrole and squaric acid.The structures and properties of the polymers were characterized using 1H NMR,FT-IR,UV-vis and cyclic voltammetry.Both polymers exhibit excellent solubility in common organic solvents and good thermal stability.Their UV-vis absorption spectra indicated the polymers have broad and strong spectral responses from 200 nm to 900 nm,which reveals a low optical band gap around 1.38 eV,suggesting that they may be promising candidates for organic solar cells.
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关键词:
- Squaraine
- / Polymer
- / Synthesis
- / Low band gap
- / Organic solar cell material
English
Synthesis and properties of novel low band-gap polymers beating squaraine units
Abstract:
Novel main-chain-conjugated poly(carbazol-alt-squaraine)and poly(dipyridyl-alt-squaraine)were successfully synthesized through direct polycondensation of 9-(2-ethylhexyl)carbazole-bridged or dipyridyl-bridged bispyrrole and squaric acid.The structures and properties of the polymers were characterized using 1H NMR,FT-IR,UV-vis and cyclic voltammetry.Both polymers exhibit excellent solubility in common organic solvents and good thermal stability.Their UV-vis absorption spectra indicated the polymers have broad and strong spectral responses from 200 nm to 900 nm,which reveals a low optical band gap around 1.38 eV,suggesting that they may be promising candidates for organic solar cells.
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Key words:
- Squaraine
- / Polymer
- / Synthesis
- / Low band gap
- / Organic solar cell material
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