Research Article
Facile flexible sensors based on CNT-metal oxide nanocomposites for CO2 sensing
@INPROCEEDINGS{10.4108/eai.7-12-2021.2314737, author={Ashok Kumar L and Alagappan M and Ria George and Janani K M}, title={Facile flexible sensors based on CNT-metal oxide nanocomposites for CO2 sensing}, proceedings={Proceedings of the First International Conference on Combinatorial and Optimization, ICCAP 2021, December 7-8 2021, Chennai, India}, publisher={EAI}, proceedings_a={ICCAP}, year={2021}, month={12}, keywords={cnt/metal oxide nanocomposites gas sensing chemiresistor nano sensor composites}, doi={10.4108/eai.7-12-2021.2314737} }- Ashok Kumar L
Alagappan M
Ria George
Janani K M
Year: 2021
Facile flexible sensors based on CNT-metal oxide nanocomposites for CO2 sensing
ICCAP
EAI
DOI: 10.4108/eai.7-12-2021.2314737
Abstract
Portable and wearable gas sensors are required to judge and warn people about the condition of the air they walk into and thus deter accidents caused by gas leakage, saving life and machinery.Synthesis and characterization of CNT / metal oxide nanocomposites with two different compositions, namely SnO2 and ZnO are investigated in this paper. The nanocomposites are coated using a simple drop casting method over a flexible electrode with interdigitated geometry. The fabricated sensors are tested for CO2 gas in a custom-made test set up. It was observed that SnO2 and ZnO are n-type semiconductors in which resistance increased with increasing CO2 concentration. The facile hydrothermal synthesis process, ease of fabrication, and room temperature operability make metal oxide Nano composites with CNT as a good candidate for CO2 gas sensing.
