Microstructure control of WO 3 film by adding nano-particles of SnO 2 for NO 2 detection in ppb level

Kengo Shimanoe, Aya Nishiyama, Masayoshi Yuasa, Tetsuya Kida, Noboru Yamazoe

Research output: Contribution to journalConference articlepeer-review

10 Citations (Scopus)


To fabricate more excellent NO 2 sensor with high sensor response and good linearity between the sensor response and NO 2 concentration, the microstructure of WO 3 lamellae was controlled by adding nano-particles of SnO 2. It was found that the sintering of WO 3 lamellae was inhibited by adding nano-particles of SnO 2. The device using WO 3 lamellae added a small amount of SnO 2 nano-particles had the highest sensor response, exhibiting a high sensor response (S = 60-540) even to dilute NO 2 (100-1000 ppb) in air at 200°C.

Original languageEnglish
Pages (from-to)212-215
Number of pages4
JournalProcedia Chemistry
Issue number1
Publication statusPublished - Sep 2009
EventEurosensors 23rd Conference - Lausanne, Switzerland
Duration: Sep 6 2009Sep 9 2009

All Science Journal Classification (ASJC) codes

  • Chemistry(all)
  • Chemical Engineering(all)


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