Effect of Sn doping on the structural, optical and electrical properties of TiO2 films prepared by spray pyrolysis

Abstract

In this work, highly oriented pure and tindoped titanium dioxide (Sn-doped TiO 2 ) with porous nature photoelectrodes were deposited on ITO glass plates using spray pyrolysis technique. The XRD pattern revealed the formation of anatase TiO 2 with the maximum intensity of (101) plane while doping 6 at.% of Sn. The morphological studies depicted the porous nature with the uniform arrangement of small-sized grains. The presence of tin confirmed with the EDX spectra. The size of particles of 13 nm was observed from high resolution transmission electron microscopy analysis. The average transmittance was about 85 % for the doped photoelectrode and was observed for the photoelectrode deposited with 6 at.% of tin with decrease in the energy band gap. The PL study showed the emission peak at 391 nm. The maximum carrier concentration and Hall mobility was observed for the photoelectrode deposited with 6 at.% of tin. With these studies, the DSSCs were prepared separately with the dye extracted from Hibiscus rosasinesis and Hibiscus surattensis and their efficiency was maximum for the DSSC prepared with 6 at.% of tin.

Difference in structural and chemical properties of sol–gel spin coated Al doped TiO2, Y doped TiO2 and Gd doped TiO2 based on trivalent dopants

“…In this study, the crystallite quality of the Al doped TiO 2 thin lm with 3 wt% of Al was better than the crystallite quality of the other sample of TiO 2 with a concentration of 1 wt% of Al doping. 31 The crystallite quality of the doped TiO 2 with 6% of Al was worse than with the other concentrations because no peak for the anatase phase of TiO 2 was detected. Furthermore, FWHM showed pure TiO 2 > Al doped TiO 2 at the strongest peak, meaning that the FWHM decreased when the doping concentration increased.…”

Chlorophyll as Photosensitizer in Dye-Sensitized Solar Cells

“…From the table, the cells with chlorophyll from C. indica leaves exhibited the efficiencies of 0.260, 0.290, and 0.310% using three photoanodes, that is, SnO 2 , La-doped SnO 2, and La-Cu-doped SnO 2 , respectively [32]. Doping elements into DSSC photoanode improved the performance since more dye molecules can be adsorbed in the working electrode due to larger surface area owing to increased roughness and pores after doping [52].…”

Synthesis and characterization of Sn-doped TiO2 film for antibacterial applications

“…But on doping with 5% Sn, the particles get agglomerated on the surface of the film to form island-like structures that seem to increase the surface roughness of the films. The killing capacity of the Sn-doped TiO 2 could be estimated without the interference of the additional factors through agar diffusion test [54].…”