Reorganization of redshifted band in merocyanine-Cd arachidate mixed langmuir-blodgett films induced by hydrothermal treatments

Syuji Mouri, Shin Ichi Morita, Yasuhiro F. Miura, Michio Sugi

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

The effect of hydrothermal treatments (HTT) on merocyanine (MS)-Cd arachidate mixed Langmuir-Blodgett (LB) films has been studied. At temperatures ranging from 30 to 90°C, the redshifted J-band in the as-deposited state has been found to reorganize under the condition of 100% relative humidity, forming a new phase of further redshifted bands with spectra sharper than those of the as-deposited J-band. The HTT-induced phase closely resembles that induced by the heat treatment without humidity control, while the occurrence of the latter is limited to 60-70°C. The water content introduced into the LB system during HTT is suggested to play a catalytic role in facilitating the reorganization by its lubricating and/or hydrolyzing effects to soften the film structure.

Original languageEnglish
Pages (from-to)7925-7927
Number of pages3
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume45
Issue number10 A
DOIs
Publication statusPublished - 2006 Oct 15
Externally publishedYes

Keywords

  • Heat treatment
  • Hydrothermal treatment
  • J-aggregate
  • Lb film
  • Merocyanine

ASJC Scopus subject areas

  • Engineering(all)
  • Physics and Astronomy(all)

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