Recent advances in ZnO nanostructure as a gas-sensing element for an acetone sensor: a short review |
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| Authors: | Rajneesh Kumar Mishra Vipin Kumar Le Gia Trung Gyu Jin Choi Jeong Won Ryu Rajesh Bhardwaj Pushpendra Kumar Jay Singh Seung Hee Lee Jin Seog Gwag |
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| Institution: | 1. Department of Physics, Yeungnam University, Gyeongsan, Gyeongbuk, South Korea;2. Department of Physics, G.G.M. Science College (A Constituent College of Cluster University of Jammu), University of Jammu, Jammu & Kashmir, India;3. Department of Physics, Manipal University Jaipur, Jaipur, Rajasthan, India;4. Department of Chemistry, Institute of Science, Banaras Hindu University, Varanasi, U.P., India;5. Department of Nanoconvergence Engineering and Department of Polymer Nano-Science and Technology, Jeonbuk National University, Jeonju, Jeonbuk, South Korea |
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| Abstract: | Air pollution is a severe concern globally as it disturbs the health conditions of living beings and the environment because of the discharge of acetone molecules. Metal oxide semiconductor (MOS) nanomaterials are crucial for developing efficient sensors because of their outstanding chemical and physical properties, empowering the inclusive developments in gas sensor productivity. This review presents the ZnO nanostructure state of the art and notable growth, and their structural, morphological, electronic, optical, and acetone-sensing properties. The key parameters, such as response, gas detection limit, sensitivity, reproducibility, response and recovery time, selectivity, and stability of the acetone sensor, have been discussed. Furthermore, gas-sensing mechanism models based on MOS for acetone sensing are reported and discussed. Finally, future possibilities and challenges for MOS (ZnO)-based gas sensors for acetone detection have also been explored. |
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| Keywords: | acetone sensor gas-sensing mechanisms gas-sensing parameters heterostructures/composites ZnO |
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