Quartz crystal microbalance odor sensor coated with mixed-thiol-compound sensing film

Atsushi Saitoh, Tooru Nomura, Severino Munoz, Toyosaka Moriizumi

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The relationship between the sensing film material and odor sensor selectivity, as measured using quartz crystal microbalance, has been examined in previous studies. However, selectivity depends not only on the film material, but also on the structure of the sensing films. In the present study, the relationship between the structure of sensing film and the response characteristics observed during film is investigated. Thiol compounds with different molecular structures and atomic groups were mixed and used as sensing film materials. The mixing ratio was varied to produce different film structures. In addition, we demonstrated a new self-assembly method for making a sensing film with the desired specific response property, using the interaction between odor molecules and sensing film molecules due to their affinity. The experimental results indicate that the sensor response is influenced by the sensing film structure, and that sensors with specific response properties can be produced by controlling the film structure.

Original languageEnglish
Pages (from-to)2849-2852
Number of pages4
JournalJapanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers
Volume37
Issue number5 SUPPL. B
Publication statusPublished - 1998 May

Fingerprint

odors
Quartz crystal microbalances
Odors
quartz crystals
thiols
microbalances
sensors
Sensors
selectivity
Molecules
mixing ratios
Self assembly
Molecular structure
affinity
self assembly
molecules
molecular structure

Keywords

  • Film structure
  • Odor sensor
  • Quartz crystal microbalance
  • Self-assembly film
  • Thiol compounds

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)
  • Engineering(all)

Cite this

Quartz crystal microbalance odor sensor coated with mixed-thiol-compound sensing film. / Saitoh, Atsushi; Nomura, Tooru; Munoz, Severino; Moriizumi, Toyosaka.

In: Japanese Journal of Applied Physics, Part 1: Regular Papers and Short Notes and Review Papers, Vol. 37, No. 5 SUPPL. B, 05.1998, p. 2849-2852.

Research output: Contribution to journalArticle

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