P1.8 Selective and reliable amperometric H2O2 sensor based on Au-ZnO heterostructure electrode
- Event
- SMSI 2020
-
(did not take place because of Covid-19 virus pandemic) - Band
- SMSI 2020 - Sensors and Instrumentation
- Chapter
- P1 Chemical Sensors
- Author(s)
- S. Zhuiykov, M. Karbalaei Akbari - Gent University Global Campus, Yeonsu-gu, Incheon (South Korea)
- Pages
- 209 - 210
- DOI
- 10.5162/SMSI2020/P1.8
- ISBN
- 978-3-9819376-2-6
- Price
- free
Abstract
Au-ZnO heterostructures were fabricated on the 4-inch SiO2/Si substrates by the atomic layer deposi-tion (ALD) technique for their subsequent use as sensing electrodes in amperometric H2O2 sensor. The results showed that the sensors based on Au-ZnO heterostructures possess high sensitivity of 0.53 μAμM-1cm-2, excellent long-term stability, wide linear H2O2 detection range of 1.0 μM to 120 mM, low limit of detection (LOD) of 0.78 μM and excellent selectivity at the normal operation conditions.