Photostimulated modification of the structure and optical properties of a molecular layer of a polymethine dye

Formation mechanisms of the component composition for thin films and aqueous solutions of symmetric cyanine dyes

“…Allocation of the absorption band of the different molecular forms from the film absorption spectra was carried out by the original method [11]. The spectrum of each components was in the form of three Gaussian functions describing the most probable transitions between the ground electronic state and the vibrational sublevels of the first excited state.…”

“…The advantages of spin-coating method are homogeneity of the fi . lms; ability to prepare multi-component (different isomers, dlmers and J-aggregates [11]) and multi-layered films in a single technological cycle; control of the film thickness (from monomolecular to 100 nm). However, formation of components composition, influence of the molecular structure on structure of film morphology and optical properties are not well studied.…”

Выделение Полос Поглощения Мономеров И Агрегатов В Спектре Слоя Цианинового Красителя И Определение Ориентации Молекул

“…В работах [18,19] показано, что дипольные моменты переходов с поглощением как мономеров, так и ассоциатов в слоях цианиновых красителей наклонены 412 Е.Н. Калитеевская, В.П.…”

“…где D n -плотности поглощения отдельных n-компонентов слоя при α = 0. В работах [18,19] углы θ n определялись в отдельных точках спектра. Для оценки величин θ n для разных компонентов слоя авторами использовались следующие методики.…”