Home // International Journal On Advances in Systems and Measurements, volume 10, numbers 3 and 4, 2017 // View article

Aluminum-doped Zinc Oxide Nanoparticles Sensing Properties Enhanced by Ultraviolet Light

Authors:
Sandrine Bernardini
Tomas Fiorido
Khalifa Aguir
Meriem Gaceur
Olivier Margeat
Jörg Ackermann
Christine Videlot-Ackermann

Keywords: Gas sensor; NO2 sensor; light excitation; Al-ZnO nanoparticules; Ultraviolet illumination; blue illumination.

Abstract:
The development of room-temperature gas sensors for nitrogen dioxide gases is of great importance for air quality monitoring due to unhealthy impact on human life and environment. In this work, we focus on Aluminum-doped Zinc Oxide sensing properties. We compare nitrogen dioxide detection at room temperature in dark and under ultraviolet or blue illuminations. Working temperature from 25°C up to 100°C have been also performed in dark and under UV and blue Light Emitted Diodes. Aluminum-doped Zinc Oxide nanoparticules have been deposited by drop coating from colloidal solution as sensitive layer for air quality monitoring on Si/SiO2 substrate. Herein, a brief description of the process steps will be provided. We demonstrate that UV light and temperature enhance gas-sensing properties with good reversibility and repeatability.

Pages: 206 to 211

Copyright: Copyright (c) to authors, 2017. Used with permission.

Publication date: December 31, 2017

Published in: journal

ISSN: 1942-261x