DEVELOPMENT OF QUANTUM OPTICAL DEVICES FROM SPECIALLY AND DIMENSIONALLY CONTROLLED NANO PHASE-SEPARATED STRUCTURE

采用原子力显微镜观察的方法，研究了由花青素染料和脂肪酸组成的混合单层膜在压缩过程中的分子聚集形态。用反射光谱法评价了膜层的光学性质。以3,3′-二十八烷基-2,2′-草青碱高酯为染料，棕榈酸、花生酸、木质素单酸为脂肪酸组成单层。吸收行为显示在菁染料和脂肪酸的单层中形成j聚集体。特别地，在（菁染料/棕榈酸：50/50）混合单层中观察到一个特殊的能带结构，也证实了该结构对应于j聚集体。体系中j聚集体的形成取决于脂肪酸的烷基链长和组成比例。例如，单钠酸的混合体系在组成比为25/75 -40/60的情况下也能形成j -团聚体，而棕榈酸的混合体系只有在组成比为50/50的情况下才会形成j -团聚体。同时三元体系的单层也形成了j聚集体。在混合单分子层中，无法构建功能菁染料分子被脂肪酸分子约束在纳米级的相分离结构。

Molecular aggregated morphology of mixed monolayer composed of cyanine dye and fatty acids during compression was investigated on the basis of an atomic force microscopic observation. Optical properties of the monolayers were also evaluated from a reflected spectroscopy. 3,3'-Dioctadecyl-2,2'-oxacyanine perchior ate as dye and palmitic, arachidic, lignoceric monatonic acids as fatty acid were used for monolayer composition. Absorption behavior revealed formation of J-aggregate in the monolayer of cyanine dye and fatty acids. In particular, a specific band structure was observed for (cyanine dye/palmitic acid :50/50) mixed monolayer and also confirmed -that the structure corresponds to J-aggregate. Formation of J-aggregate in the system depended on alkyl chain length of faty acid and composition ratio. For example, mixed system of monatonic acid formed J-aggregate even the case of composition ratio of 25/75 -40/60, although that of palmitic acid formed it only the case of that of 50/50. Also ternary system of the monolayer formed J-aggregate. A required phase separated structure, which functional cyanine dye molecules were confined by fatty acid molecules at a nanometer order in the mixed monolayer cannot be constructed.