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Adv Sci (Weinh)


Title:Unique Photoactivated Time-Resolved Response in 2D GeS for Selective Detection of Volatile Organic Compounds
Author(s):Mohammadzadeh MR; Hasani A; Jaferzadeh K; Fawzy M; De Silva T; Abnavi A; Ahmadi R; Ghanbari H; Askar A; Kabir F; Rajapakse R; Adachi MM;
Address:"School of Engineering Science, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada. Department of Computer Science and Software Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada. Department of Physics, Simon Fraser University, Burnaby, British Columbia, V5A 1S6, Canada"
Journal Title:Adv Sci (Weinh)
Year:2023
Volume:20230119
Issue:10
Page Number:e2205458 -
DOI: 10.1002/advs.202205458
ISSN/ISBN:2198-3844 (Electronic) 2198-3844 (Linking)
Abstract:"Volatile organic compounds (VOCs) sensors have a broad range of applications including healthcare, process control, and air quality analysis. There are a variety of techniques for detecting VOCs such as optical, acoustic, electrochemical, and chemiresistive sensors. However, existing commercial VOC detectors have drawbacks such as high cost, large size, or lack of selectivity. Herein, a new sensing mechanism is demonstrated based on surface interactions between VOC and UV-excited 2D germanium sulfide (GeS), which provides an effective solution to distinguish VOCs. The GeS sensor shows a unique time-resolved electrical response to different VOC species, facilitating identification and qualitative measurement of VOCs. Moreover, machine learning is utilized to distinguish VOC species from their dynamic response via visualization with high accuracy. The proposed approach demonstrates the potential of 2D GeS as a promising candidate for selective miniature VOCs sensors in critical applications such as non-invasive diagnosis of diseases and health monitoring"
Keywords:2D Materials GeS machine learning sensors volatile organic compounds (VOCs) detection;
Notes:"PubMed-not-MEDLINEMohammadzadeh, Mohammad Reza Hasani, Amirhossein Jaferzadeh, Keyvan Fawzy, Mirette De Silva, Thushani Abnavi, Amin Ahmadi, Ribwar Ghanbari, Hamidreza Askar, Abdelrahman Kabir, Fahmid Rajapakse, R K N D Adachi, Michael M eng Natural Sciences and Engineering Research Council of Canada/ Western Economic Diversification Canada/ Innovation for Defence Excellence and Security/ Canada Foundation for Innovation/ B.C. Knowledge Development Fund/ Germany 2023/01/21 Adv Sci (Weinh). 2023 Apr; 10(10):e2205458. doi: 10.1002/advs.202205458. Epub 2023 Jan 19"

 
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