Melenevskyy D. Photophysical properties of the informational media based on the polymeric compositions with the merocianyne dyes.

This work is dedicated the problem of modeling construction of conception of absorption spectrum properties, photogeneration and recombination of charge carriers in polymeric composites, based on carbazol-containing polymers with merocianyne dyes. Also the problem of study of information characteristic of holographic recording mediums PC based these polymers was investigated. The results of study of absorption spectrums and photophysical characteristics of polymeric composite films with neutral dyes, donors and acceptors were shown in this work. Also the effect of external electrical field on these characteristics was searched. The holographic recording mediums were produced, using information about investigated characteristics. The peculiarities of hiding holographic image formation in these mediums were studied. It was shown, that external electrical field does not have the effect on optical absorption spectrums of polymeric composites films based on carbazolyl-containing polymers with merocianyne dyes with different solvatochromism. The absorption of films with meroczianyne dyes with positive solvatochromism in short-wave section of absorption spectrum decreases and in long-wave section increases. And the reverse effects were observed in films with dyes with negative solvatochromism. Polymeric composition films with donors, acceptors and merocianyne dyes characterizes by the high photoconductivity vales in visible and near infrared spectral division. In the registration media based on the polymeric composition films with the -type connection photogeneretation centers, a non-homogeneous charge distribution on the polymeric composition film surface, which is equal to the projected optical image structure, forms during corona discharge and during optical image exposure. Such property gives a chance to use an investigated media for a double-exposure holography. Developed registration media have a high optical homogeneity and informational characteristics, and restored holographic image quality doesn't differ from the maximal value, which is calculated theoretically.