A study of fast response characteristics for hydrogen sensing with platinum FET sensor

K. Tsukada, T. Kiwa, T. Yamaguchi, S. Migitaka, Y. Goto, K. Yokosawa

Research output: Contribution to journalArticle

66 Citations (Scopus)

Abstract

The fast response characteristics of a Pt-FET hydrogen sensor have been investigated using a hydrogen gas flow system and a flow-through cell for the sensor. The Pt-FET hydrogen sensor showed good linear response, detecting hydrogen concentrations from 10 ppm to 10%, and had a sensitivity of -25.1 mV/decade at room temperature, which is close to the value for the Nernstian slope. The transient response characteristic shows that the equivalent catalytic reaction on the platinum surface is dominant in the response time.

Original languageEnglish
Pages (from-to)158-163
Number of pages6
JournalSensors and Actuators, B: Chemical
Volume114
Issue number1
DOIs
Publication statusPublished - Mar 30 2006

Keywords

  • Fast response characteristics
  • Gas flow
  • Hydrogen gas
  • Hydrogen sensor
  • Pt-FET

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

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