Odor sensors based on molecular wire and nanofibers

Kenshi Hayashi, Chuanjun Liu

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Chemical sensors that can be applied for an odor sensing must detect a very small portion of the bulk adsorbent. In order to realize this point it is necessary to observe an interaction between analytes and sensor surfaces sensitively. A candidate to achieve such chemical sensing is a switching behavior of a functional molecular that occurs on conductive molecules by adsorbing chemicals. If the electronic properties of the molecule are affected by such switching behavior, conductance will be easily changed. A charge transfer (CT) interaction between chemicals is a general concept for the conductance change, in which doping effect that causes donor or acceptor, Coulomb repulsion by electron correlation, or acid base reaction affects electrical conductance of materials. In the most typical case appeared in low dimensional conduct, CT interaction causes insulator-conductor transition, e.g., Mott transition, of materials, i.e., molecular switching phenomena. On the other hand, a nanostructured sensor surface is necessary to detect molecular conductance change caused by tiny analytes adsorption. In this study, we suggest sensor investigation for various volatile compounds by a transition of molecular wire conductance induced by electron-correlation interaction formation.

Original languageEnglish
Title of host publicationBiochemical Sensors
Subtitle of host publicationMimicking Gustatory and Olfactory Senses
PublisherPan Stanford Publishing Pte. Ltd.
Pages305-319
Number of pages15
ISBN (Electronic)9789814303422
ISBN (Print)9789814267076
DOIs
Publication statusPublished - Sep 23 2013

Fingerprint

Nanofibers
odors
Odors
Electron correlations
wire
Wire
Electrons
Charge transfer
sensors
Sensors
Adsorption
Molecules
Electron transitions
Chemical sensors
Electronic properties
Adsorbents
Acids
charge transfer
interactions
Doping (additives)

All Science Journal Classification (ASJC) codes

  • Medicine(all)
  • Biochemistry, Genetics and Molecular Biology(all)
  • Chemistry(all)
  • Chemical Engineering(all)
  • Engineering(all)
  • Physics and Astronomy(all)

Cite this

Hayashi, K., & Liu, C. (2013). Odor sensors based on molecular wire and nanofibers. In Biochemical Sensors: Mimicking Gustatory and Olfactory Senses (pp. 305-319). Pan Stanford Publishing Pte. Ltd.. https://doi.org/10.4032/9789814303422

Odor sensors based on molecular wire and nanofibers. / Hayashi, Kenshi; Liu, Chuanjun.

Biochemical Sensors: Mimicking Gustatory and Olfactory Senses. Pan Stanford Publishing Pte. Ltd., 2013. p. 305-319.

Research output: Chapter in Book/Report/Conference proceedingChapter

Hayashi, K & Liu, C 2013, Odor sensors based on molecular wire and nanofibers. in Biochemical Sensors: Mimicking Gustatory and Olfactory Senses. Pan Stanford Publishing Pte. Ltd., pp. 305-319. https://doi.org/10.4032/9789814303422
Hayashi K, Liu C. Odor sensors based on molecular wire and nanofibers. In Biochemical Sensors: Mimicking Gustatory and Olfactory Senses. Pan Stanford Publishing Pte. Ltd. 2013. p. 305-319 https://doi.org/10.4032/9789814303422
Hayashi, Kenshi ; Liu, Chuanjun. / Odor sensors based on molecular wire and nanofibers. Biochemical Sensors: Mimicking Gustatory and Olfactory Senses. Pan Stanford Publishing Pte. Ltd., 2013. pp. 305-319
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