Transition metal dichalcogenides-based flexible gas sensors

• Published in: Sensors and actuators. A. Physical. Vol. 303; p. 111875
• Main Authors: Kumar, Rahul, Goel, Neeraj, Hojamberdiev, Mirabbos, Kumar, Mahesh
• Format: Journal Article
• Language: English
• Published: Lausanne Elsevier B.V 01.03.2020; Elsevier BV
• Subjects: 2D layered materials; Air monitoring; Chalcogenides; Detection; Electronic textiles; Flexibility; Gas sensors; Layered materials; Mechanical properties; Metals; Power consumption; Sensors; Smart materials; Textiles; Tin disulfide; Transition metal compounds; Wearability; Wearable computers; Wearable technology; Electronic textiles; Wearability; 2D layered materials; Gas sensors; Flexibility
• ISSN: 0924-4247; 1873-3069
• DOI: 10.1016/j.sna.2020.111875

[Display omitted] •2D layered materials such as MoS2, MoSe2, WS2, WSe2, VS2, SnS2, etc. utilized for detection of many toxic and combustible inorganic and organic gases on flexible sensing platform.•Sensitivity, response/recovery time, stability, and selectivity of a sensor are some of the key factors, which are addressed with suitable sensing mechanism for different TMDCs materials.•Integration of TMDCs materials into e-skin-oriented and e-textiles gas sensor are also highlighted.•Challenges and future perspectives for TMDCs materials in emerging flexible and wearable gas sensing field are discussed. In recent years, two-dimensional (2D) layered materials, such as MoS2, MoSe2, WS2, WSe2, SnS2, etc., have gained enormous interest in sensing applications with low-power consumption owing to their unique electrical, chemical, and mechanical properties. Among a broad range of sensors, rapid advances in flexible and wearable sensors have paved the way for smart sensing applications, including electronic skin (e-skin), home security, air- and health-monitoring, etc. This review aims at summarizing recent progress in energy-efficient flexible gas sensors by utilizing 2D transition metal dichalcogenides (TMDCs) materials. Main concepts and different approaches are overviewed for optimizing the gas sensing characteristics on flexible sensing platforms. The different strategies and challenges for incorporating 2D TMDCs materials into e-skin-oriented and e-textiles gas sensors are also highlighted. In addition, this review also includes the challenges and future perspectives for TMDCs materials in emerging flexible and wearable gas sensing field.