Hydrothermally synthesized ZnO and Z-rGO nanorods: Effect of post-annealing temperature and rGO incorporation on hydrogen sensing
| Autor: | Karthigeyan Annamalai, Ajay Rakkesh Rajendran, Balakumar Subramanian, Pandiyarasan Veluswamy, Hiroya Ikeda, Guru Nisha Narayanan, Pavithra Ananthasubramanian |
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| Rok vydání: | 2021 |
| Předmět: |
Fabrication
Materials science Hydrogen Graphene Oxide chemistry.chemical_element Substrate (electronics) Zinc Condensed Matter Physics Atomic and Molecular Physics and Optics Electronic Optical and Magnetic Materials law.invention chemistry.chemical_compound chemistry Chemical engineering law Electrode Nanorod Electrical and Electronic Engineering |
| Zdroj: | Journal of Materials Science: Materials in Electronics. 33:9455-9470 |
| ISSN: | 1573-482X 0957-4522 |
| Popis: | In this work, hydrogen-sensing characteristics of zinc oxide nanorods and reduced graphene oxide-incorporated zinc oxide nanorods are investigated. The effect of post-annealing treatment and incorporation of reduced graphene oxide in zinc oxide nanorods on hydrogen sensing was reported. The sensor is developed using zinc oxide nanorods film and reduced graphene oxide-incorporated zinc oxide nanorods film over a glass substrate with interdigitated gold electrode structure over the sensing film. Sensor fabrication and material characterization were analyzed. The resistivity of ZnO nanorod increased from 0.76 to 2.03 Ω.cm with the incorporation with rGO. The devices were tested using hydrogen at operating temperature 200 °C for different gas concentrations (100, 150, and 200 ppm). Among all the fabricated sensor samples, Z–rGO sample is found to exhibit better sensing properties toward hydrogen. |
| Databáze: | OpenAIRE |
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