高等学校化学学报 ›› 2009, Vol. 30 ›› Issue (4): 792.

• 研究论文 • 上一篇    下一篇

Cu2+对不同相形态中聚3-己基噻吩光学性质的影响

朱俊1, 彭瑞祥1, 王命泰1,2   

    1. 中国科学院等离子体物理研究所, 合肥 230031;
    2. 安徽建筑工业学院材料科学与工程系, 合肥 230022
  • 收稿日期:2008-11-17 出版日期:2009-04-10 发布日期:2009-04-10
  • 通讯作者: 王命泰, E-mail:mtwang@ipp.ac.cn
  • 基金资助:

    国家“九七三”计划(批准号: 2007CB936602)和国家自然科学基金(批准号: 20474066)资助.

Effect of Cu2+ on the Optical Properties of Poly(3-hexylthiophene) in Different Phases

ZHU Jun1, PENG Rui-Xiang1, WANG Ming-Tai1,2*   

    1. Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China;
    2. Department of Materials Science and Engineering, Anhui Institute of Architecture & Industry, Hefei 230022, China
  • Received:2008-11-17 Online:2009-04-10 Published:2009-04-10
  • Contact: WANG Ming-Tai, E-mail:mtwang@ipp.ac.cn

摘要:

用紫外-可见吸收光谱和荧光光谱方法研究了Cu2+分别与稀溶液、分散液和薄膜三种体系中的聚3-己基噻吩(P3HT)的相互作用. 结果表明, P3HT的相形态对其相互作用有重要影响. 在四氢呋喃的稀溶液中, P3HT与Cu2+的溶剂化程度都很高, 它们之间几乎不存在化学作用; 在分散液中, P3HT形成聚集的颗粒, Cu2+的加入产生较弱的氧化掺杂, Cu2+部分进入到分散颗粒中; 在P3HT的薄膜中, Cu2+使链的共轭长度变短, 引起光吸收蓝移.

关键词: 聚3-己基噻吩, 铜离子, 光学性质

Abstract:

The interactions between Cu2+ and poly(3-hexylthiophene)(P3HT) in three different phases(dilute solution, dispersive solution and film), were investigated with UV-Vis absorption spectroscopy and photoluminescence spectroscopy. Our results indicate that the phase state of P3HT has a remarkable influence on the interactions. In the dilute THF solution, there is almost no chemical interaction between Cu2+ and P3HT due to the high degrees of solvation of both them, while in the dispersive solution, the Cu2+ partially enters into the dispersive particles and leads to weak oxidative doping of P3HT. In P3HT films, the presence of Cu2+ makes the conjugation length of P3HT become shorter and causes a blue-shift in the absorption spectroscopy.

Key words: Poly(3-hexylthiophene), Copper ion, Optical property

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