Sol-gel derived titania/γ-glycidoxypropyltrimethoxysilane and methyltrimethoxysilane hybrid materials for optical waveguides

Wenxiu Que*, X. Hu

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

23 Citations (Scopus)

Abstract

We report here on titania/organically modified silane hybrid materials produced by the sol-geli technique for optical waveguide applications. Acid catalyzed solutions of γ-glycidoxypropyltrimethoxysilane and methyltrimethoxysilane mixed with tetrapropylorthotitanate have been used as precursors for the hybrid materials. Waveguide films with a thickness about 1.3-μm have been prepared on a silicon substrate by a single-coating process and low-temperature heat treatment. Atomic force microscopy (AFM), thermal gravimetric analysis (TGA), UV-visible spectroscopy (UV-VIS), and Fourier transform infrared (FTIR) spectroscopy have been used to investigate the optical and structural properties of these waveguide films. The results have shown that dense, pore-free, and highly transparent films can be obtained by low temperature heat treatment. The planar waveguide propagation loss of the hybrid films has also been measured.

Original languageEnglish
Pages (from-to)319-325
Number of pages7
JournalJournal of Sol-Gel Science and Technology
Volume28
Issue number3
DOIs
Publication statusPublished - Nov 2003
Externally publishedYes

ASJC Scopus Subject Areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • General Chemistry
  • Biomaterials
  • Condensed Matter Physics
  • Materials Chemistry

Keywords

  • Hybrid
  • Optical properties
  • Sol-gel technique
  • Spectroscopy
  • Waveguides

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