UV-activated WS2/SnO2 2D/0D heterostructures for fast and reversible NO2 gas sensing at room temperature

Enhanced Free‐Radical Generation on MoS2/Pt by Light and Water Vapor Co‐Activation for Selective CO Detection with High Sensitivity

“…[16][17][18][19] Moreover, the light-induced carriers may decompose and facilitate to release the adsorbed water, which enables a wider range of tolerance to humidity by the sensors. [20] Nevertheless, the relationship between the regulation strategies of free radicals on the sensitive materials surface and sensing performance was barely studied. Improving the selectivity of sensors through free radical regulation has not been reported yet.…”

Strategic review of gas sensing enhancement ways of 2D tungsten disulfide/selenide-based chemiresistive sensors: decoration and composite

“…Besides, formation of WS 2 /SnO 2 heterointerfaces improved the efficient partition of photo-generated electronhole pairs and electrons, which directly interacted with NO 2 molecules and led to enhanced gas response. 190 For the purpose of sensing NH 3 gas at room temperature (RT), a synthetic method was employed to decorate WS 2 NSs with TiO 2 QDs. These TiO 2 QDs have been used as the primary sites for adsorption of gases.…”

“…Besides, formation of WS 2 /SnO 2 heterointerfaces improved the efficient partition of photo-generated electron–hole pairs and electrons, which directly interacted with NO 2 molecules and led to enhanced gas response. 190…”

Pt and black phosphorus co-modified flower-like WS2 composites for fast NO2 gas detection at low temperature

“…So far, various feasible strategies, e.g., constructing composites, 4,8 noble metal functionalization, 6,[9][10][11] building heterojunctions, [12][13][14][15][16] and UV-light irradiation, 15,17,18 have been tried to overcome these barriers and simultaneously realize low-temperature detection. For example, the gas-sensing properties of pristine WS 2 have been significantly improved by fabricating WS 2 /CNF composites using a hydrothermal method.…”