Title
Recent advances in 2D/nanostructured metal sulfide-based gas sensors: Mechanisms, applications, and perspectives
Author
Tang, H. (TU Delft Electronic Components, Technology and Materials)
Sacco, L.N. (TU Delft Electronic Components, Technology and Materials) 
Vollebregt, S. (TU Delft Electronic Components, Technology and Materials)
Ye, H. (Shenzhen Institute of Wide-bandgap Semiconductors; Southern University of Science and Technology)
Fan, Xuejun (Lamar University)
Zhang, Kouchi (TU Delft Electronic Components, Technology and Materials)
Date
2020
Abstract
2D and nanostructured metal sulfide materials are promising in the advancement of several gas sensing applications due to the abundant choice of materials with easily tunable electronic, optical, physical, and chemical properties. These applications are particularly attractive for gas sensing in environmental monitoring and breath analysis. This review gives a systematic description of various gas sensors based on 2D and nanostructured metal sulfide materials. Firstly, the crystal structures of metal sulfides are introduced. Secondly, the gas sensing mechanisms of different metal sulfides based on density functional theory analysis are summarised. Various gas-sensing concepts of metal sulfide-based devices, including chemiresistors, functionalized metal sulfides, Schottky junctions, heterojunctions, field-effect transistors, and optical and surface acoustic wave sensors, are compared and presented. It then discusses the extensive applications of metal sulfide-based sensors for different gas molecules, including volatile organic compounds (i.e., acetone, benzene, methane, formaldehyde, ethanol, and liquefied petroleum gas) and inorganic gas (i.e., CO2, O2, NH3, H2S, SO2, NOx, CH4, H2, and humidity). Finally, a strengths-weaknesses-opportunities-threats (SWOT) analysis is proposed for future development and commercialization in this field. This journal is
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DOI
https://doi.org/10.1039/D0TA08190F
ISSN
2050-7488
Source
Journal of Materials Chemistry A, 8 (47), 24943-24976
Part of collection
Institutional Repository
Document type
review
Rights
© 2020 H. Tang, L.N. Sacco, S. Vollebregt, H. Ye, Xuejun Fan, Kouchi Zhang