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

Shengyu Yin; Donghua Chen; Wanjun Tang; Yuhong Yuan

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

机译：溶胶-凝胶法合成CaTiO3 ：Pr，Al荧光粉及其发光性能

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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.

机译：以乙醇为溶剂，柠檬酸为螯合剂，通过溶胶-凝胶法合成了红色长余辉CaTiO3 ：Pr，Al荧光粉。 TG-DTG曲线和X射线衍射分析表明，在700℃的煅烧温度下合成了钛酸钙晶体5小时。光致发光和衰减曲线表明，通过溶胶-凝胶法合成的荧光粉的发光性能优于通过固态反应制备的荧光粉，并且在900°C加热的样品表现出最佳的发光性能。使用超声分散技术改善了磷光体的发光性能。

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来源
《Journal of Materials Science》 |2007年第8期|2886-2890|共5页
作者
Shengyu Yin; Donghua Chen; Wanjun Tang; Yuhong Yuan;
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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;

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;

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;

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;

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

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