多功能D-π-A染料体系LB膜的研究进展

Advances of Multifunctional D-π-A Dyes System in LB Film

D-π-A染料体系容易沿着 π-共轭链发生分子内电子转移 ,使其具有优良的二阶非线性光学性质和光电转换性质 ;同时对它进行恰当的分子修饰能使其具有导电性和离子选择性 .本文对 D-π-A染料体系 LB膜的发展现状及其应用领域进行了综述 。

The dyes with donor π conjugated bridge acceptor(D π A) structure exhibit a good photoelectric conversion property and excellent second order nonlinearity because they can cause photoinduced intramolecular electron transfer along π conjugated bridge. In the same time, the dyes receiving a suitable molecular modification also exhibit an electron conductivity and ion selectivity. The latest advances of multifunctional LB film of D π A dye systems were reviewed in this paper. The applications about LB film of D π A dye systems in second order nonlinear optics, photoelectric conversion and conductivity, etc. were specially discussed here.