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Synthesis of CaTiO3: Pr, Al phosphors by sol-gel method and their luminescence properties

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Abstract

Red long afterglow CaTiO3: Pr, Al phosphors have been synthesized by sol-gel method using ethanol as solvent and citric acid as a chelating agent. TG-DTG curves and X-ray diffraction analysis indicate that crystalline calcium titanate has been synthesized at calcining temperature of 700 °C for 5 h. Photoluminescence and decay curves indicate that the luminescence properties of phosphors synthesized by sol-gel method are better than that prepared by solid-state reaction and the sample heated at 900 °C exhibits the optimal luminous property. Using ultrasonic dispersing technique improved the luminescence properties of phosphors.

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Acknowledgements

The financial support from the Key Natural Science Fund of Science and Technology Department of Hubei Province under grant no. 2001ABA009 for this work is greatly appreciated.

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Authors and Affiliations

  1. Hubei Key Laboratory for Catalysis and Material Science, College of Chemistry and Material Science, South-Central University for Nationalities, Hubei, Wuhan, 430074, P.R. China

    Shengyu Yin, Donghua Chen, Wanjun Tang & Yuhong Yuan

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  1. Shengyu Yin
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  2. Donghua Chen
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  3. Wanjun Tang
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  4. Yuhong Yuan
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Correspondence to Donghua Chen.

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Yin, S., Chen, D., Tang, W. et al. Synthesis of CaTiO3: Pr, Al phosphors by sol-gel method and their luminescence properties. J Mater Sci 42, 2886–2890 (2007). https://doi.org/10.1007/s10853-007-1655-1

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  • DOI: https://doi.org/10.1007/s10853-007-1655-1

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