Fig. 6: Schematics of the reducing gas sensing mechanism in the hierarchical highly ordered nanobowl SnO2@ZnO NWs. | Microsystems & Nanoengineering

Fig. 6: Schematics of the reducing gas sensing mechanism in the hierarchical highly ordered nanobowl SnO2@ZnO NWs.

From: Hierarchical highly ordered SnO2 nanobowl branched ZnO nanowires for ultrasensitive and selective hydrogen sulfide gas sensing

Fig. 6

a The three-dimensional schematic of the hierarchical highly ordered nanobowl SnO2@ZnO NWs exposed in H2S gas; b, c the schematic energy band diagrams for the hierarchical SnO2@ZnO NWs: b in separate state and c in air. The band structure data in figure (b) were determined from the literature48

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