Alcohol gas sensors capable of wireless detection using In2O3/Pt nanoparticles and Ag nanowires

So Yun Kim, Joohee Kim, Woon Hyung Cheong, In Jun Lee, Hujoong Lee, Hyeon Gyun Im, Hoyoul Kong, Byeong Soo Bae, Jang-Ung Park

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

An unconventional method is developed to fabricate flexible and transparent sensors for real-time, wireless sensing of alcohol vapors using hybrid nanostructures of indium oxide and Pt nanoparticles (as an active channel) with random networks of metal nanowires (as electrodes and antennas). The hybrid structures of indium oxide and Pt nanoparticles present high response and selectivity for ethanol vapor sensing with detecting the blood alcohol concentration range corresponding to the license suspension or revocation in the Road Traffic Act of many countries (blood alcohol concentration 200 ppm). The integration of a Bluetooth system or an inductive antenna enables wireless operations of the alcohol sensor using smartphones for applications as wearable and hands-free devices with flexible, transparent film geometries. Furthermore, these sensor systems exhibit outstanding thermal reliabilities for their stable operations over wide temperature ranges between −40 °C and 125 °C, which can extend their practical use for automobile electronics. Such devices can be transferable onto diverse nonplanar surfaces including steering wheels and curved glasses of phones, which suggests substantial promise for their applications in next-generation automobile or wearable electronics.

Original languageEnglish
Pages (from-to)825-832
Number of pages8
JournalSensors and Actuators, B: Chemical
Volume259
DOIs
Publication statusPublished - 2018 Apr 15

Fingerprint

Chemical sensors
Nanowires
alcohols
Alcohols
nanowires
Nanoparticles
nanoparticles
automobiles
sensors
gases
indium oxides
Indium
Automobiles
blood
Sensors
Blood
antennas
Vapors
vapors
Antennas

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

Cite this

Kim, So Yun ; Kim, Joohee ; Cheong, Woon Hyung ; Lee, In Jun ; Lee, Hujoong ; Im, Hyeon Gyun ; Kong, Hoyoul ; Bae, Byeong Soo ; Park, Jang-Ung. / Alcohol gas sensors capable of wireless detection using In2O3/Pt nanoparticles and Ag nanowires. In: Sensors and Actuators, B: Chemical. 2018 ; Vol. 259. pp. 825-832.
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Alcohol gas sensors capable of wireless detection using In2O3/Pt nanoparticles and Ag nanowires. / Kim, So Yun; Kim, Joohee; Cheong, Woon Hyung; Lee, In Jun; Lee, Hujoong; Im, Hyeon Gyun; Kong, Hoyoul; Bae, Byeong Soo; Park, Jang-Ung.

In: Sensors and Actuators, B: Chemical, Vol. 259, 15.04.2018, p. 825-832.

Research output: Contribution to journalArticle

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