PT5.59 - Pt-nanoparticles decorated Amorphous/Crystalline a-V2O5/VO2 Thin Films for NO2 and H2 sensing
- Event
- EUROSENSORS XXXVI
2024-09-01 - 2024-09-04
Debrecen (Hungary) - Band
- Poster
- Chapter
- PT5 - Chemical Sensors
- Author(s)
- V. Ricci, V. Paolucci, C. Cantalini - University of Padova (DII), Padova (Italy), M. Basso, N. Thirugnanam, A. Martucci - University of L’Aquila (DIIIE), L’Aquila (Italy)
- Pages
- 345 - 346
- DOI
- 10.5162/EUROSENSORSXXXVI/PT5.59
- ISBN
- 978-3-910600-03-4
- Price
- free
Abstract
We report that nanosecond pulsed laser annealing (PLA) of solution based VO2 thin films yields high surface area amorphous/crystalline a-V2O5/VO2 nanostructures with promising chemoresistive gas sensing response to NO2 (400 ppb –1 ppm) at 100 °C temperature. In addition, Pt-nanoparticles (Pt-NPs) decorated a-V2O5/VO2 show excellent response to H2 (5 – 100 ppm) with limit of detection (LOD) as low as 5 ppm. Remarkably Pt-NPs loading resulted to neutralize the humidity cross response (10 - 80% RH) to H2 sensing, opening new perspectives for selective H2 detection in humid environments.