Skip to main content
padlock icon - secure page this page is secure

Exploration of New Sensing Electrode Materials for FET-type NOx Sensors with Fast Response

Buy Article:

$106.34 + tax (Refund Policy)

A FET type NO2 sensor fitted with NaNO2-Ru/WO3 as a new auxiliary (sensing) layer was fabricated and tested for its NO2 sensing properties. The developed device responded to dilute NO2 of ppb concentrations (20–300 ppb) at 130 and 170 °C. The sensor signal (VGS; gate-source voltage) is linearly proportional to the logarithm of NO2 concentration, exhibiting the Nernstian response. It was found that the response speed was improved at lower operating temperature by adding Ru to the NaNO2-WO3 auxiliary layer. It was suggested that Ru nanoparticles deposited in the auxiliary layer with a porous morphology improved the rate of adsorption and electrochemical reaction of NO2 occurring at the interface between the Au gate electrode and auxiliary layer.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics


Document Type: Research Article

Publication date: December 1, 2008

More about this publication?
  • The growing interest and activity in the field of sensor technologies requires a forum for rapid dissemination of important results: Sensor Letters is that forum. Sensor Letters offers scientists, engineers and medical experts timely, peer-reviewed research on sensor science and technology of the highest quality. Sensor Letters publish original rapid communications, full papers and timely state-of-the-art reviews encompassing the fundamental and applied research on sensor science and technology in all fields of science, engineering, and medicine. Highest priority will be given to short communications reporting important new scientific and technological findings.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more