Abstract

The photoelectric performance of metal ion-doped ${\mathrm{TiO}}_2$ film will be improved with the changing of the compositions and concentrations of additive elements. In this work, the ${\mathrm{TiO}}_2$ films doped with different Sn concentrations were obtained with the hydrothermal method. Qualitative and quantitative analysis of the Sn element in ${\mathrm{TiO}}_2$ film was achieved with laser induced breakdown spectroscopy (LIBS) with the calibration curves plotted accordingly. The photoelectric characteristics of ${\mathrm{TiO}}_2$ films doped with different Sn content were observed with UV visible absorption spectra and J-V curves. All results showed that Sn doping could improve the optical absorption to be red-shifted and advance the photoelectric properties of the ${\mathrm{TiO}}_2$ films. We had obtained that when the concentration of Sn doping in ${\mathrm{TiO}}_2$ films was $11.89\mathrm{mmol}/\mathrm{L}$, which was calculated by the LIBS calibration curves, the current density of the film was the largest, which indicated the best photoelectric performance. It indicated that LIBS was a potential and feasible measured method, which was applied to qualitative and quantitative analysis of the additive element in metal oxide nanometer film.

© 2018 Optical Society of America

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