Publications using spray pyrolysis, the dominant deposition technique across this body of work, to grow doped and undoped metal-oxide thin films on glass substrates.
Substrate temperature controls ZnO film thickness and grain size in this zinc-nitrate-precursor study, with the thinnest, highest-resistance film giving the strongest acetaldehyde response.
Switching the spray-pyrolysis precursor solvent between water and ethanol tunes ZnO film thickness from 875 down to 150 nm, producing a distinctive water-hyacinth nanostructure along the way.
Spray-pyrolysis ZnO films made with different water-ethanol precursor solvents show the ethanol-only film selectively detects ethanolamine at room temperature, with a stable response over 30 days.
Fluorine doping shrinks ZnO crystallite size and increases micro-strain, and a 4 wt% fluorine-doped film gives the strongest, most selective room-temperature acetaldehyde response.
Precursor chemistry alone tunes spray-pyrolysis CeO2 sensing performance: the acetate-derived film forms nanosheets and gives the fastest, strongest room-temperature xylene response.
Silica and titanium dioxide powders made by stirred bead milling were pressed into pellets and separately deposited as thin films to compare their room-temperature oxygen response.
Precursor volume alone steers spray-pyrolysis ZnO toward either better conductivity or better gas sensing, with a distinctive nanopetal morphology forming at 30 mL.
Increasing iron-dopant concentration drives a clear shape transition in spray-deposited ZnO from rounded nanospheres to elongated nanorods, narrowing the optical band gap along the way.
