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Deposition of TiO2 thin film by spin-coating using a laser annealing

Abstract

Deposition of TiO2 thin film by spin-coating using a laser annealing

Sayenko A.V., Bespoludin V.V.

Incoming article date: 27.10.2016

TiO2 thin films are widely used as a transparent layer n-type conductivity in the perovskite solar cells. Nanocrystalline TiO2 films were deposited on the surface of glass substrates coated with tin oxide with fluorine (FTO) by spin-coating and subsequent laser annealing radiation with a wavelength of 1064 nm. The effect of laser annealing on grain size in the TiO2 film and spin-coating speeds on its thickness. It is found that the grain diameter in the resulting TiO2 films on average 17-64 nm at a power of laser annealing 30-70 W. It was found that the thickness of the TiO2 film is changed in the range of 72-124 nm spin-coating speed. Optimal parameters TiO2 thin film formed by laser annealing can enhance the efficiency of the perovskite solar cell.

Keywords: thin film, TiO2, centrifugation, laser annealing, surface morphology, thickness