Back to Search
Start Over
Highly sensitive NO2 gas sensor based on Ag decorated ZnO nanorods.
- Source :
-
Applied Physics A: Materials Science & Processing . May2022, Vol. 128 Issue 5, p1-9. 9p. 5 Diagrams, 1 Chart, 3 Graphs. - Publication Year :
- 2022
-
Abstract
- In the present work, ZnO nanorods and Ag nanoparticles (NPs) decorated ZnO nanorods (NRs) were synthesized on a Si/SiO2 substrate by a simple chemical hydrothermal route. Various characterization techniques studied phase formation, surface morphology, and elemental composition of prepared samples. Gas sensing measurements for pristine ZnO and Ag/ZnO NRs have been carried out under a low detection limit (2–10 ppm). The highly crystalline nature of NRs aided in achieving a great sensing response. The ZnO NRs exhibit a sensing response of 934% towards 10 ppm NO2 at a working temperature of 180 °C. However, Ag/ZnO sensor gives the highest sensing response of 1075% for 10 ppm NO2 at a working temperature of 180 °C. The cause behind the increment of Ag/ZnO sensor response is explained via chemical and electronic models. These observations make an energy-efficient sensor for the detection of NO2 in the environment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09478396
- Volume :
- 128
- Issue :
- 5
- Database :
- Academic Search Index
- Journal :
- Applied Physics A: Materials Science & Processing
- Publication Type :
- Academic Journal
- Accession number :
- 156930826
- Full Text :
- https://doi.org/10.1007/s00339-022-05606-w