Carbon-monoxide sensors based on thin films of BaSnO3

Uwe Lampe, Josef Gerblinger, H. Meixner

Research output: Contribution to journalArticle

86 Citations (Scopus)

Abstract

BaSnO3 is a very promising sensor material for detecting carbon monoxide. The mechanism of CO sensitivity of this metal oxide is supposed to be a surface reaction process. Thus to get a high gas sensitivity, the CO elementary sensor is realized as a thin film. The sensitivities of the BaSnO3 thin films to CO are measured as a function of the temperature and the oxygen concentration. As the most important cross-sensitivities, the influence of humidity, methane and hydrogen on the sensor signal has been examined. The CO sensitivity shows a maximum in the range 600-700 °C under dry conditions. Humidity has a different influence on the CO sensitivity, which depends on the oxygen concentration. The cross-sensitivity to methane can be described by the sum of the sensitivities to CO and methane.

Original languageEnglish
Pages (from-to)657-660
Number of pages4
JournalSensors and Actuators, B: Chemical
Volume25
Issue number1-3
DOIs
Publication statusPublished - 1995

Fingerprint

Carbon Monoxide
Carbon monoxide
carbon monoxide
Methane
Thin films
sensitivity
sensors
Atmospheric humidity
Sensors
thin films
methane
Oxygen
Surface reactions
humidity
oxygen
Hydrogen
Oxides
surface reactions
metal oxides
Metals

Keywords

  • Barium stannate
  • Carbon monoxide sensors
  • Thin-film sensors

ASJC Scopus subject areas

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

Cite this

Carbon-monoxide sensors based on thin films of BaSnO3. / Lampe, Uwe; Gerblinger, Josef; Meixner, H.

In: Sensors and Actuators, B: Chemical, Vol. 25, No. 1-3, 1995, p. 657-660.

Research output: Contribution to journalArticle

Lampe, Uwe ; Gerblinger, Josef ; Meixner, H. / Carbon-monoxide sensors based on thin films of BaSnO3. In: Sensors and Actuators, B: Chemical. 1995 ; Vol. 25, No. 1-3. pp. 657-660.
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