抄録
Water-soluble cyanine dye derivatives can be adsorbed from aqueous solution to an arachidic acid monolayer at the air-water interface. Interface-adsorbed complex Langmuir-Blodgett films of arachidic acid and four different derivatives of thiacarbocyanine dyes were fabricated using this method, and their optical properties were examined employing a linearly polarized incident. Clear differences in both spectral shape and in-plane anisotropy were found among the films of different derivatives, each associated with an aggregate form characteristic of the substituent group. They can be classified as a dimer with Davydov splitting, a monomer, and a J aggregate. Estimation of the configuration of the molecules in the dimers and measurement of the photoluminescence spectrum for the J aggregate were performed to clarify the nature of aggregates. The results suggest the possibility of systematic control of aggregate formation in the system by introducing substituent groups for dyes.
本文言語 | English |
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ページ(範囲) | 8291-8297 |
ページ数 | 7 |
ジャーナル | Journal of Applied Physics |
巻 | 69 |
号 | 12 |
DOI | |
出版ステータス | Published - 1991 12月 1 |
外部発表 | はい |
ASJC Scopus subject areas
- 物理学および天文学(全般)