Gas sensing properties of ordered mesoporous TiO2 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 TiO2 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 TiO2 films increased by 2.6 times. As specific surface area increased, gas sensing properties of the ordered mesoporous TiO2 film were enhanced, thus, ordered mesoporous TiO2 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

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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