Fig. 6From: Highly Sensitive and Selective Sensing of H2S Gas Using Precipitation and Impregnation-Made CuO/SnO2 Thick FilmsCross-sectional FE-SEM images with EDS line-scan profiles (inset) and corresponding EDS spectra with elemental composition tables (inset) of the a, b SnO2, and c, d 20 wt%CuO/SnO2 NPs sensing filmsBack to article page