CuO nanowire gas sensors for air quality control in automotive cabin

Yoon Sung Kim, In Sung Hwang, Sun Jung Kim, Choong Yong Lee, Jong Heun Lee

Research output: Contribution to journalArticle

219 Citations (Scopus)

Abstract

CuO nanowires (NWs) were grown by the thermal oxidation of Cu foil at 400 °C and gas sensors were fabricated by the deposition of a solution containing the CuO NWs. At 300-370 °C, the sensor resistance increased upon exposure to 30-100 ppm CO. This has been explained by the gas sensing characteristics of the p-type oxide semiconductor. In contrast, the sensor showed two opposite NO2 sensing behaviors; the resistance decreased upon exposure to 30-100 ppm NO2, but increased upon contact with ≤5 ppm NO2. The increase in resistance upon contact with both reducing CO and a low concentration of oxidizing NO2 gases provides a simple and novel sensing algorithm for air quality control in automotive cabins.

Original languageEnglish
Pages (from-to)298-303
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume135
Issue number1
DOIs
Publication statusPublished - 2008 Dec 10

Fingerprint

cabins
air quality
Carbon Monoxide
quality control
Chemical sensors
Air quality
Nanowires
Quality control
nanowires
Gases
sensors
Sensors
Contact resistance
gases
Metal foil
contact resistance
Oxidation
low concentrations
foils
oxidation

Keywords

  • Automobile ventilation
  • CO
  • CuO nanowires
  • NO
  • Thermal oxidation

ASJC Scopus subject areas

  • Instrumentation
  • Materials Chemistry
  • Surfaces, Coatings and Films
  • Metals and Alloys
  • Electronic, Optical and Magnetic Materials
  • Condensed Matter Physics
  • Electrical and Electronic Engineering

Cite this

CuO nanowire gas sensors for air quality control in automotive cabin. / Kim, Yoon Sung; Hwang, In Sung; Kim, Sun Jung; Lee, Choong Yong; Lee, Jong Heun.

In: Sensors and Actuators, B: Chemical, Vol. 135, No. 1, 10.12.2008, p. 298-303.

Research output: Contribution to journalArticle

Kim, Yoon Sung ; Hwang, In Sung ; Kim, Sun Jung ; Lee, Choong Yong ; Lee, Jong Heun. / CuO nanowire gas sensors for air quality control in automotive cabin. In: Sensors and Actuators, B: Chemical. 2008 ; Vol. 135, No. 1. pp. 298-303.
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