In this work, WO3 coatings were grown on Indium Tin
Oxide glass substrates using tungsten wire as precursor for a range of deposition periods and annealing temperatures using a homemade spark machine.
Combinatorial depositions with intentional and well - controlled continuous gradients in process parameters (composition, temperature, film thickness, nanoparticle size etc): wide range of thin film chemistries in separate chambers (metals,
oxides, nitrides, sulfides); physical vapor deposition techniques (sputtering, pulsed laser deposition); different
substrates and supports (
glass, metals, glassy carbon, etc).