DONG Yan, WANG Pei, NIE Li-fang, ZOU Kai-shun, LIU Jun-cheng. Sol-gel Preparation and Up-conversion Luminescence Properties of Er<sup>3+</sup>,Yb<sup>3+</sup> Co-doped TiO<sub>2</sub> Films[J]. Chinese Journal of Luminescence, 2012,33(9): 1006-1011
DONG Yan, WANG Pei, NIE Li-fang, ZOU Kai-shun, LIU Jun-cheng. Sol-gel Preparation and Up-conversion Luminescence Properties of Er<sup>3+</sup>,Yb<sup>3+</sup> Co-doped TiO<sub>2</sub> Films[J]. Chinese Journal of Luminescence, 2012,33(9): 1006-1011 DOI: 10.3788/fgxb20123309.1006.
Sol-gel Preparation and Up-conversion Luminescence Properties of Er3+,Yb3+ Co-doped TiO2 Films
films were successfully deposited on glass substrates by sol-gel method and spin-coating technique. Ti(OBu)
4
and lanthanide nitrates were used as the starting materials
AcAc as the chelator and nitric as the catalyzer. The contact angle between the solvent and the glasse was measured by contact angle goniometer. The thermal decomposition
the crystal structure
and the morphology of the films were investigated by thermal analysis (TG)
X-ray diffraction (XRD)
and field emission scanning electron microscopy (FE-SEM)
respectively. The results indicate that IPA is the suitable solvent to improve the surface wetting property. After annealed at 700 ℃ for 2 h
both of the undoped and the co-doped films get good crystallinity
and the average grain size is not more than 50 nm. The film on the glass substrate was highly compact. The strong photoluminescence phenomenon was also observed.
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references
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