Electronic equipment 9 Thermoelectric equipment Sol-gels 5 Sol-gel process 4 Thin films 4 Zinc oxide 4 Coatings 3 Field emission microscopes 3 Field emission scanning electron microscopy 3 Scanning electron microscopy 3 Sol-gel spin coating 3 Tin oxides 3 Titanium dioxide 3 Chemical vapor deposition 2 Chemical vapour deposition 2 Electron devices 2 Energy gap 2 Film thickness 2 II-VI semiconductors 2 Indium tin oxide substrates 2 Oxide films 2 Spin coating 2 Surface profilers 2 Tin dioxide 2 Titanium oxides 2 Zinc coatings 2 Absorbance measurements 1 Absorbances 1 Annealing 1 Annealing process 1