MgO@CeO2 chemiresistive flexible sensor for room temperature LPG detection

Nowadays, gas sensors are playing an essential role in wearable electronic devices for detecting pollutant, flammable, toxic gases besides it needs to be flexible, transparent, and operating at room temperature. Liquefied petroleum gas detection is critical because it is a flammable and toxic gas th...

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Bibliographic Details
Published in:Journal of materials science. Materials in electronics 2019-09, Vol.30 (18), p.17295-17302
Main Authors: Sai Bhargava Reddy, M., Kailasa, Saraswathi, Geeta Rani, B., Jayarambabu, N., Bikshalu, K., Munindra, P., Venkateswara Rao, K.
Format: Article
Language:English
Subjects:
Cerium oxides
Characterization and Evaluation of Materials
Chemistry and Materials Science
Coated electrodes
Cost analysis
Electron microscopy
Electronic devices
Emission analysis
Field emission microscopy
Field emission spectroscopy
Flammability
Flammable gases
Flexible components
Fourier transforms
Gas sensors
Gases
Gold
Liquefied petroleum gas
Magnesium oxide
Materials Science
Microscopy
Nanocomposites
Nanomaterials
Optical and Electronic Materials
Organic chemistry
Pollutants
Polyethylene terephthalate
Room temperature
Selectivity
Sensitivity analysis
Substrates
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Summary:Nowadays, gas sensors are playing an essential role in wearable electronic devices for detecting pollutant, flammable, toxic gases besides it needs to be flexible, transparent, and operating at room temperature. Liquefied petroleum gas detection is critical because it is a flammable and toxic gas that of dangerous to humans as well the environment. The present study reports the hydrothermally synthesized MgO@CeO 2 nanocomposite coated on flexible Polyethylene terephthalate substrate printed interdigitated gold electrodes (working electrodes) through the spin coating and continued for liquefied petroleum gas detection (50–900 ppm) at room temperature. X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy and transmission electron microscopy were used to analyze the structural and morphological studies of prepared nanomaterials. The fabricated low-cost, eco-friendly MgO@CeO 2 chemiresistive flexible sensor showed good selectivity towards analyte at room temperature with a sensitivity of 32% at 900 ppm and lower detection of 5% towards 50 ppm along with good long-term stability and mechanical flexibility.
ISSN:0957-4522
1573-482X
DOI:10.1007/s10854-019-02076-4