Direct Deposition of Mesoscopically Assembled Dye-Doped Silica Films from Aqueous Solutions of Silicon Alkoxides

Junrok Oh, Hiroaki Imai, Hiroshi Hirashima

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Silica films incorporating organic dyes, such as Rhodamine B and Disperse Red 1, were directly deposited on a substrate from aqueous solutions of phenyltriethoxysilane (PhTES). The organic dyes were homogeneously dispersed and firmly trapped in a silica matrix. The X-ray diffraction patterns indicated that the dye-doped films have a mesoscopically assembled structure. Since the period of the mesostructure, ca. 12 Å, was almost the same as the average distance between the dye molecules, the dye-doped films were suggested to be formed by assembling micelle-like clusters consisting of a monomer of the organic dyes surrounded with the hydrolyzed silica precursors. Thus, the monomers of the dyes were tightly captured in a three-dimensional cage of the silica network. Mesoscopically porous silica films were obtained by calcination of the deposited films.

Original languageEnglish
Pages (from-to)1582-1588
Number of pages7
JournalChemistry of Materials
Volume10
Issue number6
Publication statusPublished - 1998 Jun

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Silicon
Silicon Dioxide
Coloring Agents
Dyes
Silica
rhodamine B
Monomers
Micelles
Calcination
Diffraction patterns
X ray diffraction
Molecules
Substrates

ASJC Scopus subject areas

  • Materials Science(all)
  • Materials Chemistry

Cite this

Direct Deposition of Mesoscopically Assembled Dye-Doped Silica Films from Aqueous Solutions of Silicon Alkoxides. / Oh, Junrok; Imai, Hiroaki; Hirashima, Hiroshi.

In: Chemistry of Materials, Vol. 10, No. 6, 06.1998, p. 1582-1588.

Research output: Contribution to journalArticle

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