Gas sensing properties of ordered mesoporous TiO 2 film enhanced by thermal shock induced cracking

Tae Jung Ha, Min Hee Hong, Chang Sun Park, Hyung-Ho Park

Research output: Contribution to journalArticle

15 Citations (Scopus)

Abstract

Ordered mesoporous TiO 2 films with increased pore connectivity are introduced in this work. Crack generation was accomplished by thermal shock using rapid thermal annealing to obtain a connected pore structure. Due to the increased pore connectivity caused by crack generation, the specific surface area of mesoporous TiO 2 films increased by 2.6 times. As specific surface area increased, gas sensing properties of the ordered mesoporous TiO 2 film were enhanced, thus, ordered mesoporous TiO 2 films with increased pore connectivity are ideal candidates for gas sensor applications.

Original languageEnglish
Pages (from-to)874-879
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume181
DOIs
Publication statusPublished - 2013 Apr 2

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All Science Journal Classification (ASJC) codes

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

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