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P2GS.4 - WS2-decorated rGO for Quasi-room Temperature Gas Sensing Applications
We report on the NO2 and humidity chemoresistive gas responses of reduced graphene oxide (rGO) and WS2-decorated rGO (GO/WS2). Films are prepared by drop casting a solution of GO and WS2 suspended nanoflakes in ethanol, on Si3N4 patterned substrates to yield a homogeneous dispersion of WS2 on the GO matrix as shown by HRTEM microstructural characterization. After thermal reduction at 70°C, rGO and rGO/WS2 gas sensing response are compared, exposing the films to NO2 (2-10 ppm) in dry air and 60%doi:10.5162/imcs2018/p2gs.4 fatcat:cf7geb4jubhbflubgyrk5573aa