N，N，N＇，N＇－四苄基取代方块菁染料LB膜研究

A STUDY OF LANGMUIR-BLODGETT FILM OF N,N,N',N'-TETRABENZYL SUBSTITUTING SQUARAINE DYE

Ｎ，Ｎ，Ｎ＇，Ｎ＇－四苄基取代方块菁染料ＬＢ膜研究李津如，李宝芳，范长宇，李兴长（中国科学院感光化学研究所，北京１００１０１）关键词方块菁染料，聚集体，ＬＢ膜，各向异性方块菁染料在有机光导材料［１，２］、有机太阳能存储［２，３］、光记录［４］、有机光...

The squaraine dye 2-[4-(dibenzylamino)phenyl]-4-[4-(dibenzylimino)-2.5-cyclohexadienylidene]-3-oxo-1-cyclobuten-1-olate(NK2846)can be incorporated into composite monolayers with arachidic acid(C_(20))at the air-water interface.The composite monolayers including the dye can be transferred onto a glass slide with hydrophobic surface by vertical dipping method as typical Y films.The aggregation of the squaraine dye in the LB films was studied by absorption spectroscopy.It was found that the absorption curve of LB films with squaraine dye covers most of the visible region and extends to the near IR,because of the aggregation of dye molecules(or intermolecular interaction)in LB films.Polarized UV-visible spectroscopy indicated that there is partial anisotropy of dye molecules presentedin the layer plane.