Cu^2＋对不同相形态中聚3-己基噻吩光学性质的影响  

Effect of Cu^(2+) on the Optical Properties of Poly(3-hexylthiophene) in Different Phases

作　　者：朱俊[1] 彭瑞祥[1] 王命泰[1,2] 

机构地区：[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

出　　处：《高等学校化学学报》2009年第4期792-795,共4页Chemical Journal of Chinese Universities

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

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.The interactions between Cu^2＋ and poly （3-hexyhhiophene） （ 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 Cu^2＋ and P3HT due to the high degrees of solvation of both them, while in the dispersive solution, the Cu^2＋ partially enters into the dispersive particles and leads to weak oxidative doping of P3HT. In P3HT films, the presence of Cu^2＋ makes the conjugation length of P3HT become shorter and causes a blue-shift in the absorption spectroscopy.

关 键 词：聚3-己基噻吩 铜离子 光学性质 

分 类 号：O631.2[理学—高分子化学]