三氮吲哚嗪对增感染料吸收光谱和荧光谱的影响

本文研究了三氮吲哚嗪（ＴＡＩ）对三种卤化银乳剂增感染料水溶液的吸收光谱和荧光光谱的影响。研究表明ＴＡＩ能使这些染料的各吸收峰强度增强，对容易形成Ｊ聚集体的染料来说，更有利于其Ｊ态光谱吸收；当三氮吲哚嗪的浓度达到一定值后，它能使染料Ｈ聚集体分解成单分子，利于单分子光谱吸收；结果说明染料的荧光发射也随溶液中ＴＡＩ浓度的增大而增强。本文还讨论了产生这种现象的原因。

INFLUENCES OF TERRAAZAINDENE ON ABSORPTION SPECTRA AND FLUORESCENCE SPECTRA OF SENSITIZING DYES

This study is about the influences of tetraazaindene(TAI) on absorption spectra and the fluorescence spectra of three kinds of sensitizing dyes.The absorption of all peaks of the dyes enhance with increasing TAI,among which the absorption of J aggregate has even marked enhancement.At certain value of TAI,the absorption of monomolecule of dye enhances much more rapidly as well as the absorption of H aggegte decreasing because of H aggregate dissociating into monomolecules.The results obtained also show that the fluorescence emissions of the dyes enhance with increasing TAI.The mechnisms of the observed phenomena are discussed in detail.