Two-Dimensional Transition Metal Dichalcogenides and Metal Oxide Hybrids for Gas Sensing
- Authors
- Lee, Eunji; Yoon, Young Soo; Kim, Dong-Joo
- Issue Date
- Oct-2018
- Publisher
- AMER CHEMICAL SOC
- Keywords
- gas sensor; 2D materials; transition metal dichalcogenides; metal oxide; hybrids; nanocomposite; heterojunction
- Citation
- ACS SENSORS, v.3, no.10, pp.2045 - 2060
- Journal Title
- ACS SENSORS
- Volume
- 3
- Number
- 10
- Start Page
- 2045
- End Page
- 2060
- URI
- https://scholarworks.bwise.kr/gachon/handle/2020.sw.gachon/3300
- DOI
- 10.1021/acssensors.8b01077
- ISSN
- 2379-3694
- Abstract
- Two-dimensional (2D) nanomaterials have demonstrated great potential in the field of gas sensing due to their layered structures. Especially for 2D transition metal dichalcogenides (TMDs), inherent high surface areas and their unique semiconducting properties with tunable band gaps make them compelling for sensing applications. In combination with the general benefits of 2D nanomaterials, the incorporation of metal oxides into 2D TMDs is a recent approach for improving the gas sensing performance of these materials by the synergistic effects of the hybridization. This Review aims to comprehend the sensing mechanisms and the synergistic effects of various hybridizations of 2D TMDs and metal oxides. The Review begins with the gas sensing mechanisms and synthesis methods of 2D TMDs. Achievements in recent research on 2D TMDs and their metal oxide hybrids for sensor applications are then comprehensively compiled. To clearly understand the collective benefits of TMDs and metal oxide hybrids, the hybridization effects are discussed in three aspects: geometrical, electronic, and chemical effects.
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