A highly stable humidity sensor based on a new Bi2O3/CNT hybrid nanostructure
In this article, we propose a facile chemical fabrication strategy for the synthesis of Bi2O3 nanoparticles/ CNT homophonous nanohybrid for a humidity sensing device development at room temperature. We use a simple bar coating method to prepare Bi2O3 nanoparticles and CNT hybrids. Then the morpholog...
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Published in | Sensors and actuators. A. Physical. Vol. 351; p. 114141 |
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Main Authors | , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Elsevier B.V
01.03.2023
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Subjects | |
Online Access | Get full text |
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Summary: | In this article, we propose a facile chemical fabrication strategy for the synthesis of Bi2O3 nanoparticles/ CNT homophonous nanohybrid for a humidity sensing device development at room temperature. We use a simple bar coating method to prepare Bi2O3 nanoparticles and CNT hybrids. Then the morphology and structure of Bi2O3/CNT are studied using X-ray diffraction, Transmission electron microscopy and other surface area measurements. The humidity sensing properties of the sensor is investigated at room temperature under a variety of analytical value. Bi2O3/CNT nanohybrid with average pore size of ∼22.2 nm displays proportional stable response toward increasing humidity values (from relative humidity (RH) level 0%–90%) and reveals better linearity than pure Bi2O3 (indistinguishable at RH60%+) and higher response (∼90%) than pure CNT (∼15%).
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•Bi2O3/ CNT nanohybrid structures enhance humidity linearity properties.•The ∆I calculation which represents the absolute different carrier charges rate confirms the phenomenon.•Bi2O3 pure is a promising humidity material candidate. |
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ISSN: | 0924-4247 1873-3069 |
DOI: | 10.1016/j.sna.2022.114141 |