两种荧光LB膜的制备和光谱性能

Preparation and Spectral Properties of Two Fluorescent LB Films

制取了４－二氰基亚甲基－２－甲基－６－对二甲胺基苯乙烯基－４Ｈ－吡喃（ＤＣＭ）和１，２－双（５－甲基苯并唑）基乙烯（ＤＴ）两种荧光分子的ＬＢ膜以及两者的混合膜。以吸收光谱和荧光光谱探讨了膜中分子的构型、微环境、发光性能等特征。发现在ＬＢ膜的缀密排布环境中ＤＣＭ顺式构型的含量较之在溶液中大为增加。

The LB films of two fluorescent molectiles,4-dicyanomethylene-2-methyl-6-p-dimethylaminostyryl-4H-pyran(DCM)and 1,2-bis(5-methylbenzoxazol-2-yl)ethylene(DT)and their mixture were prepared. The configtiration, micro environment and luminescenceproperties of these molecules in films have been investigated by absorption and fluorcscencespectroscopy, The content of cis-form DCM in LB film was found to be greatly increascd incomparison with that in solution.