Orientation of J-aggregate molecules in Langmuir film and Langmuir–Blodgett films of merocyanine dyes mixed with arachidic acid and n-octadecane and irradiation effect of visible light
| Autor: | Kieko Harada, Yoshiaki Imaizumi, Kazuyuki Sugita, Masahito Kushida |
|---|---|
| Rok vydání: | 2008 |
| Předmět: |
chemistry.chemical_classification
Langmuir Metals and Alloys Surfaces and Interfaces Photochemistry Langmuir–Blodgett film Surfaces Coatings and Films Electronic Optical and Magnetic Materials chemistry.chemical_compound Monomer chemistry Octadecane Materials Chemistry Arachidic acid Merocyanine J-aggregate Alkyl |
| Zdroj: | Thin Solid Films. 516:2586-2590 |
| ISSN: | 0040-6090 |
| DOI: | 10.1016/j.tsf.2007.04.071 |
| Popis: | Langmuir (L) film and Langmuir–Blodgett (LB) films of a merocyanine dyes (MC) containing C18 alkyl chain mixed with arachidic acid (AA) and n-octadecane (OD) were fabricated. Surface-pressure–area isotherms of an L film and absorption spectra of LB films deposited on a substrate were measured. Amphiphilic molecular orientation in the L film and the built-up proportion of MC J-aggregates to monomer and H-aggregates in MC-LB films mixed with AA and OD were controlled by altering the molar ratio of AA and OD to MC. The built-up proportion of MC J-aggregates in LB films decreased and the J-aggregates decayed to monomer and H-aggregates by increasing the exposure power of a 608-nm monochromatic light. |
| Databáze: | OpenAIRE |
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