Carbon-monoxide sensors based on thin films of BaSnO3

Uwe Lampe, Josef Gerblinger, Hans Meixner

Research output: Contribution to journalArticle

91 Citations (Scopus)


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
Issue number1-3
Publication statusPublished - Apr 1995


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

ASJC Scopus subject areas

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

Fingerprint Dive into the research topics of 'Carbon-monoxide sensors based on thin films of BaSnO<sub>3</sub>'. Together they form a unique fingerprint.

  • Cite this