Pure and different ratios (1, 3, 5, 7 and 10%) of boron doped TiO 2 thin films were grown on the glass substrate by using sol-gel dip coating method having some benefits such as basic and easy applicability compared to other thin film production methods. To investigate the effect of boron doped on the physical properties of TiO 2 , structural, morphological and optical properties of growth thin films were examined. 1% boron-doping has no effect on optical properties of TiO 2 thin film; however, optical properties vary with > 1%. From X-ray diffraction spectra, it is seen that TiO 2 thin films together with doping of boron were formed along with TiB 2 hexagonal structure having (111) orientation, B 2 O 3 cubic structure having (310) orientation, TiB 0•024 O 2 tetragonal structure having rutile phase (110) orientation and polycrystalline structures. From SEM images, it is seen that particles together with doping of boron have homogeneously distributed and held onto surface. Keywords. Boron doped TiO 2 ; nanoparticles; thin films; optical and morphological characterizations.

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