MyJournals Home  

RSS FeedsSensors, Vol. 19, Pages 374: Improved Sensing Capability of Integrated Semiconducting Metal Oxide Gas Sensor Devices (Sensors)

 
 

19 january 2019 14:00:42

 
Sensors, Vol. 19, Pages 374: Improved Sensing Capability of Integrated Semiconducting Metal Oxide Gas Sensor Devices (Sensors)
 




Semiconducting metal oxide (SMO) gas sensors were designed, fabricated, and characterized in terms of their sensing capability and the thermo-mechanical behavior of the micro-hotplate. The sensors demonstrate high sensitivity at low concentrations of volatile organic compounds (VOCs) at a low power consumption of 10.5 mW. In addition, the sensors realize fast response and recovery times of 20 s and 2.3 min, respectively. To further improve the baseline stability and sensing response characteristics at low power consumption, a novel sensor is conceived of and proposed. Tantalum aluminum (TaAl) is used as a microheater, whereas Pt-doped SnO2 is used as a thin film sensing layer. Both layers were deposited on top of a porous silicon nitride membrane. In this paper, two designs are characterized by simulations and experimental measurements, and the results are comparatively reported. Simultaneously, the impact of a heat pulsing mode and rubber smartphone cases on the sensing performance of the gas sensor are highlighted.


Del.icio.us Digg Facebook Google StumbleUpon Twitter
 
16 viewsCategory: Chemistry, Physics
 
Sensors, Vol. 19, Pages 373: Economic Analysis of a Multi-Sided Platform for Sensor-Based Services in the Internet of Things (Sensors)
Sensors, Vol. 19, Pages 372: A Comprehensive Study of the Potential Application of Flying Ethylene-Sensitive Sensors for Ripeness Detection in Apple Orchards (Sensors)
 
 
blog comments powered by Disqus


MyJournals.org
The latest issues of all your favorite science journals on one page

Username:
Password:

Register | Retrieve

Search:

Physics

Use these buttons to bookmark us:
Del.icio.us Digg Facebook Google StumbleUpon Twitter


Valid HTML 4.01 Transitional
Copyright © 2008 - 2019 Indigonet Services B.V.. Contact: Tim Hulsen. Read here our privacy notice.
Other websites of Indigonet Services B.V.: Nieuws Vacatures News Tweets Travel Photos Nachrichten Indigonet Finances Leer Mandarijn