Physical and chemical characterization of poly(2-bromo-5-hexyloxy-p-phenylenevinylene) and poly(5,5′-dibromo-2,2′-bis-hexyloxy-4,4′-biphenylenevinylene) -: comparison to related polymers

被引:18
作者
Benvenho, ARV
Lessmann, R
Hümmelgen, IA
Mello, RMQ
Li, RWC
Bazito, FFC
Gruber, J
机构
[1] Univ Fed Parana, Dept Fis, Grupo Disposit Optoelect Organ, BR-81531990 Curitiba, Parana, Brazil
[2] Univ Fed Parana, Dept Quim, BR-81531990 Curitiba, Parana, Brazil
[3] Univ Sao Paulo, Inst Quim, BR-05513970 Sao Paulo, SP, Brazil
基金
巴西圣保罗研究基金会;
关键词
conjugated polymers; biphenylenevinylene derivatives; charge carrier mobilities;
D O I
10.1016/j.matchemphys.2005.06.022
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
We performed the synthesis, spectroscopic and electrical characterization of poly(2-bromo-5-hexyloxy-p-phenylenevinylene), BHPPV, and poly(5,5'-dibromo-2,2'-bis-hexyloxy-4,4'-biphenylenevinylene), BHBPV. We determined the positive charge carrier mobility, similar to 3.7 x 10(-7) cm(2) V-1 S-1 for BHPPV and 5.9 x 10(-7) cm(2) V-1 s(-1) for BHBPV and estimated the energy levels, energy gap and determined the photoluminescence spectrum for both polymers. The results are compared with similar results on poly(p-phenylenevinylene) and poly(biphenylenevinylene) derivatives, discussing trends in physical parameters. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码:176 / 182
页数:7
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