Journal
SENSORS
Volume 15, Issue 12, Pages 30539-30544Publisher
MDPI AG
DOI: 10.3390/s151229816
Keywords
nanowire; sensors; hydrogen; SEM-FIB; nano-fabrication; devices
Funding
- CONACYT-Mexico [265700, 253280]
Ask authors/readers for more resources
Low concentrations of hazardous gases are difficult to detect with common gas sensors. Using semiconductor nanostructures as a sensor element is an alternative. Single ZnO nanowire gas sensor devices were fabricated by manipulation and connection of a single nanowire into a four-electrode aluminum probe in situ in a dual-beam scanning electron microscope-focused ion beam with a manipulator and a gas injection system in/column. The electrical response of the manufactured devices shows response times up to 29 s for a 121 ppm of H-2 pulse, with a variation in the nanowire resistance appreciable at room temperature and at 373.15 K of approximately 8% and 14% respectively, showing that ZnO nanowires are good candidates to detect low concentrations of H-2.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available