High Gas Sensitivity to Nitrogen Dioxide of Nanocomposite ZnO-SnO₂ Films Activated by a Surface Electric Field.

ABSTRACT: Gas sensors based on the multi-sensor platform MSP 632, with thin nanocomposite films based on tin dioxide with a low content of zinc oxide (0.5-5 mol.%), were synthesized using a solid-phase low-temperature pyrolysis technique. The resulting gas-sensitive ZnO-SnO₂ films were comprehensively studied by atomic force microscopy, Kelvin probe force microscopy, X-ray diffraction, scanning electron microscopy, transmission electron microscopy, scanning transmission electron microscopy, energy dispersive X-ray spectrometry, and X-ray photoelectron spectroscopy. The obtained films are up to 200 nm thick and consist of ZnO-SnO₂ nanocomposites, with ZnO and SnO₂ crystallite sizes of 4-30 nm. Measurements of ZnO-SnO₂ films containing 0.5 mol.% ZnO showed t

SUBMITTER: Petrov VV 

PROVIDER: S-EPMC9230884 | biostudies-literature | 2022 Jun

REPOSITORIES: biostudies-literature