Baharuddin, Aainaa Aqilah and Ang, Bee Chin and Haseeb, A. S. M. A. and Wong, Yew Hoong (2024) Low operating temperature N-ZnO/PANI chemiresistive acetone gas sensor. Journal of Materials Science-Materials in Electronics, 35 (1). ISSN 0957-4522, DOI https://doi.org/10.1007/s10854-023-11827-3.
Full text not available from this repository.Abstract
In the advances of electronic miniaturization, a power efficient wireless gas sensor is desirable. In order to reduce gas sensor working temperature and improve lower limit of detection (LOD) as well as increase response toward acetone gas in this study, ZnO was first synthesized into porous nanosheet network before it was in-situ ball-milled and nitrogen (N) doped, followed by mixing with polyaniline (PANI). Ultimately, the N-ZnO was combined with PANI into composites of 5 wt%, 10 wt%, and 20 wt% of PANI to N-ZnO in order to scrutinize the effects of combining different weight percent of nitrogen-doped ZnO (N-ZnO) to PANI. Investigation on morphology of sample using X-ray diffractometer found that in-situ ball milling and nitrogen doping had induced lattice strain to the ZnO morphology. The rise in carrier concentration in N-ZnO could be the advantageous feature that enhanced the sensor LOD which also promptly decreased the working temperature. On the other hand, the increased in acetone response of the sensor is due to the heterojunction of N-ZnO/PANI composite.
| Item Type: | Article |
|---|---|
| Funders: | Universiti Malaya [FRGS/1/2019/TK05/UM/02/2], Ministry of Higher Education (MOHE) Malaysia via Fundamental Research Grant Scheme [ST009-2022], GPF060B-2020, Universiti Malaya (UM) via International Collaboration Grant, UMSFA 2019 |
| Uncontrolled Keywords: | OPTICAL-PROPERTIES; ZNO; PERFORMANCE; NANOFIBERS; PHASE |
| Subjects: | T Technology > TJ Mechanical engineering and machinery T Technology > TK Electrical engineering. Electronics Nuclear engineering |
| Divisions: | Faculty of Engineering Faculty of Engineering > Department of Chemical Engineering Faculty of Engineering > Department of Mechanical Engineering |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 19 Jun 2024 01:05 |
| Last Modified: | 19 Jun 2024 01:05 |
| URI: | http://eprints.um.edu.my/id/eprint/44189 |
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