An overview on room-temperature chemiresistor gas sensors based on 2D materials: Research status and challenge

MXene‐Based Flexible Sensors: Materials, Preparation, and Applications

“…[11] Compounding can be used to create a wide range of flexible sensors based on the excellent performance of MXenes materials and the properties of various substrate materials. [12] They are classified as pressure sensors, [13] gas sensors, [14] electrochemical sensors, [15] biosensors, [16] temperature and humidity sensors, [17] and so on based on their sensing properties. [18] Pressure sensors are the most well-researched type of flexible sensors, which are capable of sensing compression and tension under external forces and are widely used in wearable devices and smart medical devices.…”

Pt-Doped HfS2 Monolayer as a Novel Sensor and Scavenger for Dissolved Gases (H2, CO2, CH4, and C2H2) in Transformer Oil: A Density Functional Theory Study

“…Thanks to their large exposed surface area, short electron migration path, and high conductivity, nanomaterials with two-dimensional (2D) structures have been widely recognized as the consummate materials for preparing gas-sensitive substrates of resistivity-type sensors. – For example, graphene, a single layer constructed by carbon atoms, has been researched deeply by theoretical and experimental means for its application potential in gas sensors since it was developed in 2004 . However, the inherent characteristic of a zero band gap limits the practical application of graphene, which drives bright scientists away toward new substitutes for high-qualified gas sensors .…”

SnSe2/Ag2Se heterostructures with an accumulation layer for rapid and sensitive detection of NO2

“…Two-dimensional (2D) metal chalcogenides are used in various fields, such as electrocatalysts, photocatalysts, and sensors. [20][21][22][23][24][25] Especially, owing to the large surface area, high reactive activity, and outstanding carrier mobility, 2D metal chalcogenides, such as SnS 2 [26][27][28][29] and MoS 2 , 30 have been increasingly investigated for gas sensors. Compared with SnS 2 , SnSe 2 has a narrower band gap, wider layer spacing, and higher carrier mobility.…”