Add time:08/04/2019         Source:sciencedirect.com

CADMIUM STANNATE (cas 12185-56-7) (Cd2SnO4) thin films were coated on Corning 1737 glass substrates at 540 °C by spray pyrolysis technique, from the aqueous solution of cadmium acetate and tin (II) chloride precursors. Fluorine doped Cd2SnO4 (F: Cd2SnO4) thin films were prepared by adding ammonium fluoride in the range of 0–5 wt% of the total weight of cadmium acetate and tin (II) chloride in the spray solution. Thickness of the prepared films is about 300 nm. X-ray diffraction analysis of the Cd2SnO4 and 3 wt% F: Cd2SnO4 films shows the signature for the growth along (222) direction. Scanning electron micrographs showed that fluorine doping effectively modifies the surface morphology of Cd2SnO4 films. Average optical transmittance in the visible region (500–850 nm) for Cd2SnO4 is ~79% and it is increased to ~83% for 1 wt% doping concentration of the NH4F in the solution. Fluorescence spectra of F: Cd2SnO4 (1 wt% and 3 wt%) exhibit peak at 601 nm. F: Cd2SnO4 film (1 wt%) shows mobility of ~42 cm2/V s, carrier concentration of ~9.5×1019 cm−3 and resistivity of ~1.5×10−3 Ω cm.

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