Detecting Air Pollutant Molecules Using Tube-Shaped Single Electron Transistor
1
School of Chemistry and Chemical Engineering, Chongqing Key Laboratory of Soft-Matter Material Chemistry and Function Manufacturing, Southwest University, Chongqing 400715, China
2
Key Laboratory of Inorganic Special Functional Materials of Chongqing, Yangtze Normal University, Chongqing 408100, China
3
Hunan Key Laboratory of Micro-Nano Energy Materials and Devices, Xiangtan University, Xiangtan 411105, China
4
Key Laboratory of Extraordinary Bond Engineering and Advanced Materials Technology of Chongqing, Yangtze Normal University, Chongqing 408100, China
*
Authors to whom correspondence should be addressed.
Academic Editors: Yuanfu Chen, Qian Chen, Guankui Long, Yiming Wang and Afang Zhang
Molecules 2021, 26(23), 7098; https://doi.org/10.3390/molecules26237098
Received: 29 October 2021
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Revised: 20 November 2021
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Accepted: 20 November 2021
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Published: 24 November 2021
(This article belongs to the Special Issue Materials Chemistry in China)
An air pollution detector is proposed based on a tube-shaped single-electron transistor (SET) sensor. By monitoring the flow control component of the detector, each air pollutant molecule can be placed at the center of a SET nanopore and is treated as an island of the SET device in the same framework. Electron transport in the SET was incoherent, and the performances of the SET were sensitive at the single molecule level. Employing first-principles calculations, electronic features of an air pollutant molecule within a tube-shaped SET environment were found to be independent of the molecule rotational orientations with respect to axis of symmetry, unlike the electronic features in a conventional SET environment. Charge stability diagrams of the island molecules were demonstrated to be distinct for each molecule, and thus they can serve as electronic fingerprints for detection. Using the same setup, quantification of the air pollutant can be realized at room temperature as well. The results presented herein may help provide guidance for the identification and quantification of various types of air pollutants at the molecular level by treating the molecule as the island of the SET component in the proposed detector.
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Keywords:
tube-shaped single electron transistors; incoherent transport; air pollutant molecule; first-principle calculations; identification and quantification
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MDPI and ACS Style
Huang, Z.; Peng, X.; Peng, C.; Huang, J.; Bo, M.; Yao, C.; Li, J. Detecting Air Pollutant Molecules Using Tube-Shaped Single Electron Transistor. Molecules 2021, 26, 7098. https://doi.org/10.3390/molecules26237098
AMA Style
Huang Z, Peng X, Peng C, Huang J, Bo M, Yao C, Li J. Detecting Air Pollutant Molecules Using Tube-Shaped Single Electron Transistor. Molecules. 2021; 26(23):7098. https://doi.org/10.3390/molecules26237098
Chicago/Turabian StyleHuang, Zhongkai, Xiangyang Peng, Cheng Peng, Jin Huang, Maolin Bo, Chuang Yao, and Jibiao Li. 2021. "Detecting Air Pollutant Molecules Using Tube-Shaped Single Electron Transistor" Molecules 26, no. 23: 7098. https://doi.org/10.3390/molecules26237098
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