MoS₂ Decorated α-Fe₂O₃ Nanostructures for Efficient NO₂ Gas Sensor

Recent advances in bismuth oxychalcogenide nanosheets for sensing applications

“…Sensing can be applied for the detection of different analytes, molecules and radiation in different sensing media. [66][67][68] BOXs have gained huge attention for sensing applications due to their surface chemical reactivity and excellent charge transfer properties. These materials have been explored theoretically and experimentally for gas sensing, biosensing and optical sensing ( photodetectors).…”

Sputtered Ultrathin WO3 for Realizing Room-Temperature High-Sensitive NO2 Gas Sensors

“…For detecting the analytical gas, we injected NO 2 gas through a syringe pump with adjustable background air and a flow rate of 500 mL/min. The concentration of NO 2 gas was varied from 0.7 to 17 ppm by controlling the syringe pump and volume with a fixed sensing period of 30 s. The Keysight U2722A USB Modular Source Measure Unit was used for real-time current measurement at a fixed voltage of 5 V. The sensing response of the real-time measurement was calculated as R = I final − I int I int × 100 % and is shown in Figure S2. − …”

Ultrahigh-acetone-sensitivity sensor based on Pt-loaded TiO2 porous nanoparticles synthesized via a facile hydrothermal method

“…Semiconducting metal oxides (SMOs) are commonly studied in the field of gas sensors due to their excellent allround performance and reasonable price. There have been numerous reports of sensors made from metal-oxidesemiconductors in recent years, such as In 2 O 3 [12][13][14], Fe 2 O 3 [15][16][17], SnO 2 [18][19][20], ZnO [21][22][23] and TiO 2 [24][25][26]. TiO 2 is a new type of n-type transparent functional semiconductor material, and is usually available in three crystal types-anatase, rutile and brucite-among which anatase TiO 2 is an n-type semiconductor and has a wide bandgap (E g = 3.6 eV).…”