阴阳离子菁染料J-聚集体的荧光光谱研究

采用荧光光谱技术，研究了两种阴阳离子菁染料及对应的阴离子和阳离子菁染料在溴碘化银立方体颗粒上形成的J-聚集体的荧光光谱特性，并与其在溴碘化银立方体上的光谱增感率进行了实验对比。结果表明：阴阳离子菁染料的荧光光谱峰值明显低于阴离子、阳离子菁染料，说明其吸收光子后，大部分电子转移到溴碘化银表面。因此具有较高的光谱增感效率。

Fluorescence Spectra of J-Aggregates of Anionic-Cationic Cyanine Dyes

In the present paper,the fluorescence spectral curves of J-aggregates of two kinds of anionic-cationic cyanine dyes adsorbed on AgIBr cubic microcrystals were measured by using fluorescence spectroscopy,and compared with the sensitivity characteristic of anionic-cationic cyanine dyes.The results show that the peaks of fluorescence spectral curves of anionic-cationic cyanine dyes were lower than that of anionic and cationic cyanine dyes,and the higher sensitivity efficiency was due to the fact that more electrons transfer to the surface of AgIBr microcrystal.