Evolution of optical absorption from small oligomers to ideally conjugated PPV and MEH-PPV polymers

被引：22

作者：

Oelkrug, D

Gierschner, J

Egelhaaf, HJ

Lüer, L

Tompert, A

Müllen, K

Stalmach, U

Meier, H

机构：

[1] Univ Tubingen, Inst Phys & Theoret Chem, D-72076 Tubingen, Germany

[2] Max Planck Inst Polymerforsch, D-55128 Mainz, Germany

[3] Univ Mainz, Inst Organ Chem, D-55099 Mainz, Germany

来源：

SYNTHETIC METALS | 2001年 / 121卷 / 1-3期

关键词：

oligophenylenevinylenes; MEH-PPV; absorption; transition energies;

D O I：

10.1016/S0379-6779(00)01179-6

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Oligomeric series of p-phenylenevinylene and p-(dialkoxyphenylene)vinylene with n = 1 - 11 repeating units are characterized in solution by polarized fluorescence and absorption spectroscopy. Assignments of the six lowest singlet-singlet transitions are given as a function of n and extrapolated to the perfectly conjugated polymer. Experiments are compared with semi-empirical quantum mechanical calculations. Especially the role of the symmetry breaking alkoxy-substituents is discussed.

引用

页码：1693 / 1694

页数：2

共 3 条

[1] Optical absorption in the substituted phenylene-based conjugated polymers: Theory and experiment [J].