Molecular sifter using space controlled Langmuir-Blodgett films by fullerene molecules

Seimei Sha Shiratori, Motoi Shimizu, Kazuo Ikezaki

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

We have found that the intermolecular spacing of an arachidc acid (C20) Langmuir-Blodgett (LB) film can be controlled by introducing a variable amount of spacer molecules such as fullerene (C60) into the film. Using this characteristic, several kinds of mixed LB films, composed of C20 and C60, were prepared and the adsorption characteristics of gas molecules, namely phytoncid (e.g. limonene, α-pinene), to these films were studied using a quartz crystal microbalance. The dependence of the amount of the gas adsorbed on the number of layers reveal that the permeability of the gas molecules into the LB films remarkably increases with an increase of the intermolecular spacing of LB films. Gas molecules with different sizes or structures were sifted by using C60 containing LB films. This characteristic of the LB films containing C60 can be applied to a novel gas sensor with a molecular sifter function.

Original languageEnglish
Pages (from-to)655-658
Number of pages4
JournalThin Solid Films
Volume327-329
Issue number1-2
DOIs
Publication statusPublished - 1998

Keywords

  • Arachidic acid
  • Fullerene
  • Gas sensor
  • Langmuir-Blodgett film
  • Molecular sifter
  • Quartz crystal microbalance

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry

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