期刊
THIN SOLID FILMS
卷 516, 期 9, 页码 2586-2590出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.tsf.2007.04.071
关键词
J-aggregate; H-aggregatc; molecular orientation; irradiation effect; langmuir-blodgett films
Langmuir (L) film and Langmuir-Blodgett (LB) films of a merocyanine dyes (MC) containing C Is 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. (c) 2007 Elsevier B.V. All rights reserved.
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