PECULIARITIES OF OPTICAL-PROPERTIES OF 4- TRETBUTILDIPHTHALOCYANINE OF HOLMIUM FILMS, FORMED WITH HELP OF THERMAL EVAPORATION AND BY METHODOF LANGMUIR-BLODGETT

Conditions of formation for homogeneous 4-tretbutildiphthalocyanine of Ho films with help of Langmuir - Blodgett and thermal evaporation met hods were determined and optical properties were investigated at the d ifferent aggregate states. The displacement of maxima of absorption ba nds to longer wave lengths (at 210 - 230 cm(-1)) and change of bands i ntensity were found during transition from neutral solution to solid. Such a change of intensity depends on the method of manufacturing film s. Enrichment of the red form takes place during making of Langmuir - Blodgett films. On the other hand, enrichment of both charged forms, b ut mainly of the blue form, takes place for the process of thermal eva poration. Besides, three new absorption bands with the maxima at 23,50 0 25,400 27,000 cm(-1) were found. Red, blue and green forms respectiv ely contribute to the formation of these bands.