Gas-Sensing Properties of Thin Films Grown on the Surface of InP Single Crystals by Thermal Oxidation

A Self‐Powered Portable Nanowire Array Gas Sensor for Dynamic NO2 Monitoring at Room Temperature

“…The experimental studies from Kostryukov et al. [ 52 ] and Garcia et al. [ 53 ] also demonstrated that InP thin film has a much smaller sensing response to CO and NO than to NO 2 .…”

“…The larger Q and E a of NO 2 indicate that it has a significantly stronger chemical adsorption and charge transfer ability with InP than those of CO and NO. The experimental studies from Kostryukov et al [52] and Garcia et al [53] also demonstrated that InP thin film has a much smaller sensing response to CO and NO than to NO 2 . Furthermore, according to the study from Christian et al, [54] and Parthasarathi et al, [55] the concentration of hydrocarbons and SO 2 in vehicle exhaust is much smaller than that of NO 2 (NO 2 is ≈0.4 g km −1 ; hydrocarbons in total is ≈0.1 g km −1 ; SO 2 only shows possible trace from vehicle emission).…”

Two‐Dimensional Nanomaterials for the Development of Efficient Gas Sensors: Recent Advances, Challenges, and Future Perspectives

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of every single sensor is depending on several characteristics such as sensitivity, selectivity, detection limit, response time, and recovery time. [4][5][6][7] In the previous several decades, nanomaterials-based technologies have achieved great importance and have been extensively used in many applications such as in food technology, industrial machinery, catalysis, electronic transportation, data storage, and energy applications. [135][136][137][138][139][140][141][142][143][144][145][146][147][148][149][150][151][152] Devices based on nanoscale techniques are the backbone of many applications such as medical diagnostics and treatment, national defense, security systems, and sensing devices.

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