Titania/ormosils organic-inorganic hybrid thin films doped with azobenzene small molecules for optical switch applications

Wenxiu Que*, M. Sun, C. Y. Jia, L. Cheng, Z. Sun, L. L. Wang, X. Hu

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Titania/organically modified silanes (ormosils) organic-inorganic hybrid thin films doped with azobenzene small molecules are prepared by a low temperature sol-gel spin-coating process for optical switch applications. Acid-catalyzed solutions of y-glycidoxypropyltrimethoxysilane and methyltrimethoxysilane mixed with tetrapropyl orthotitanate are used as matrix precursors. Atomic force microscopy is used to study the morphological properties of the hybrid thin films. Results indicate that crack-free thin films with a thickness of about 1.3 μm can be obtained by a single spin-coating process after a low heat treatment temperature. The propagation mode properties of the hybrid thin films are also studied by employing a prism coupling technique. The photo-responsive properties of the hybrid films baked at different temperatures are induced by an irradiation with UV light and subsequent visible light.

Original languageEnglish
Title of host publicationSemiconductor Photonics
Subtitle of host publicationNano-Structured Materials and Devices
PublisherTrans Tech Publications
Pages11-13
Number of pages3
ISBN (Print)0878494715, 9780878494712
DOIs
Publication statusPublished - 2008
Externally publishedYes
EventInternational Conference on Materials for Advanced Technologies, ICMAT 2007 - Singapore, Singapore
Duration: Jul 1 2007Jul 6 2007

Publication series

NameAdvanced Materials Research
Volume31
ISSN (Print)1022-6680

Conference

ConferenceInternational Conference on Materials for Advanced Technologies, ICMAT 2007
Country/TerritorySingapore
CitySingapore
Period7/1/077/6/07

ASJC Scopus Subject Areas

  • General Engineering

Keywords

  • Azobenzene
  • Optical switch
  • Organic-inorganic hybrid
  • Sol-gel technique
  • Thin films

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