Texture developing in TiO2/ORMOSIL composite sol-gel films by ECR etching

Wenxiu Que*, W. G. Liu, Y. Zhou, Y. L. Lam, Y. C. Chan, S. D. Cheng, H. P. Li, Y. W. Chen, S. Buddhudu, C. H. Kam

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)

Abstract

Composite waveguide film based on TiO2/organically modified silane (ORMOSIL) has been synthesized through a sol-gel technique. Tetrapropylorthotitanate (Ti(OC3H7)4) and y-Glycidoxypropyltrimethoxysilane (GLYMO, [(CH2OCH)CH2O(CH2)3]Si(OCH3) 3) were used as precursors for TiO2/ORMOSIL composite films. Chain-like texture structure in the electron cyclotron resonance (ECR)-etched composite waveguide film was observed during the fabrication of optical channel waveguides. The morphology and structure were characterized by using scanning electron microscopy (SEM) and Fourier transforms infrared spectroscopy (FTIR). It is proposed that the formation of the texture structure be due to the induced polymerization of the GLYMO monomer in the presence of plasma or gas catalyst.

Original languageEnglish
Pages (from-to)309-313
Number of pages5
JournalMaterials Letters
Volume44
Issue number5
DOIs
Publication statusPublished - 2000
Externally publishedYes

ASJC Scopus Subject Areas

  • General Materials Science
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Keywords

  • Composite
  • Electron cyclotron resonance
  • Optical channel waveguides
  • Organically modified silane
  • Polymerization
  • Sol-gel technique
  • Texture structure

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