Characterization of ormosil film for dissolved oxygen-sensing

Xi Chen, Zhenming Zhong, Zhen Li, Yaqi Jiang, Xiaoru Wang, Kwok Yin Wong

Research output: Journal article publicationJournal articleAcademic researchpeer-review

72 Citations (Scopus)

Abstract

An organically modified silicate (ormosil) as a matrix for the fabrication of dissolved oxygen-sensing film was produced. The process included taking tetramethoxysilane (TMOS) and dimethyldimethoxysilane (DiMe-DMOS) as precursor and running a reaction at 60 °C in an open vial, which accelerates hydrolysis and condensation and results in the formation of emulsion. The film doped with tris-(4,7-diphenyl-1,10-phenanthroline) ruthenium(II) ([Ru(dpp)3]2+) as an oxygen indicator exhibited a good linear relationship, fast response time, long-term stability and enhanced sensitivity to dissolved oxygen after optimizing the sol-gel processing parameters. The properties and the oxygen-sensing behavior of the film were investigated. The results presented here emphasized the significance of ormosil as a matrix for dissolved oxygen-sensing.
Original languageEnglish
Pages (from-to)233-238
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume87
Issue number2
DOIs
Publication statusPublished - 10 Dec 2002

Keywords

  • Dissolved oxygen
  • Fluorescence quenching
  • Hydrophobicity
  • Ormosil
  • Sensing film

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Instrumentation
  • Condensed Matter Physics
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Materials Chemistry
  • Electrical and Electronic Engineering

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