Properties of fluorine-doped ZnO deposited onto glass by spray pyrolysis

Electrical and optical properties of fluorine-doped ZnO thin films prepared by spray pyrolysis

Ga-doped SnO 2 thin films deposited by spray pyrolysis were investigated as oxygen gas sensors. Gallium was added to the films to enhance the catalytic activity of the surface’s film to oxygen. Film resistance was studied in an environment of dry air loaded with oxygen in excess at partial pressures in the range from 0 to 8.78×10 3  Pa. The best sensitivity lies close to partial pressures of 133.3 Pa. Film sensitivity reach a maximum at 350 °C. For this temperature and a doping concentration of 3 at.% of Ga in the starting solution, a sensitivity up to 2.1 was obtained.

SnO2:Ga thin films as oxygen gas sensor

Tin dioxide thin films from Sn(IV) modified alkoxides — synthesis and structural characterization of Sn(OEt)2(η2-acac)2 and Sn4(μ3-O)2(μ2-OEt)4(OEt)6(η2-acac)2

Tin oxide monolith was prepared by a sol-gel process using inorganic salt as a starting material. The tin oxide prepared had no aggregations visible to the naked eye and was very transparent in the visible wavelength even after heating in air at 600 °C. It was confirmed from X-ray diffraction results that the crystal structure of the tin oxide was of the rutile type. The crystal size changed from 1.4 nm to 23.5 nm as the heating temperature increased from room temperature to 700 °C, indicating a possibility to control the crystal size.

A. Tiburcio-Silver

Papers

Undoped and fluorine-doped spray deposited SnO2 films: growth and characterization