Design of highly sensitive and selective ethanol sensor based on α-Fe₂O₃/Nb₂O₅ heterostructure

The introduction of heterostructures is a new approach in gas sensing due to their easy and quick transport of charges. Herein, facile hydrothermal and solid-state techniques are employed to synthesize an α -Fe 2 O 3 /Nb 2 O 5 heterostructure. The morphology, microstructure, crystallinity and surface composition of the synthesized heterostructures are investigated by scanning electron microscope, transmission electron microscope, x-ray...