Crystallographic coherent lengths of J-aggregates and their absorption spectra

Noritaka Kato*, Ichiro Hirosawa, Masugu Sato, Tomoyuki Koganezawa, Kazuya Yuasa

*この研究の対応する著者

研究成果: Article査読

3 被引用数 (Scopus)

抄録

The Langmuir (L) and Langmuir-Blodgett (LB) films of the J-aggregates formed by amphiphilic merocyanine dye (MD) differ their absorption bands (J-bands), and the J-band in the LB film is located in shorter wavelength than that in the L film. From the grazing incidence X-ray diffraction patterns, the lattice structures and the crystallographic coherent lengths of the MD J-aggregates in the L and LB films were evaluated. Besides a 7% shrinkage of the 2-dimensional lattice in the LB film, more than two-order of magnitude shorter coherent lengths were observed in the LB film, suggesting that the difference of the J-band wavelength was attributed to the size effect of the J-aggregate crystal.

本文言語English
ページ(範囲)275-280
ページ数6
ジャーナルColloids and Surfaces A: Physicochemical and Engineering Aspects
321
1-3
DOI
出版ステータスPublished - 2008 5 15

ASJC Scopus subject areas

  • 表面および界面
  • 物理化学および理論化学
  • コロイド化学および表面化学

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