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首页> 外文期刊>Journal of Materials Research >Improvement of luminescence properties of Ca_(0.8)Zn_(0.2)TiO_3:Pr~(3+) prepared by hydrothermal method
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Improvement of luminescence properties of Ca_(0.8)Zn_(0.2)TiO_3:Pr~(3+) prepared by hydrothermal method

机译：水热法制备Ca_（0.8）Zn_（0.2）TiO_3：Pr〜（3+）的发光性能的改善

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摘要

Red-emitting phosphor of Ca_(0.8)Zn_(0.2)TiO_3:0.2 mol% Pr~(3+) was synthesized by the hydrothermal method with urea as a mineralizer. The crystalline structure, micromorphology, and luminescent properties of the resultant phosphor were investigated. Results show that elevated calcination temperature does not change the shape of particles that are hollow spheres with a shell thickness of 210-480 nm, and smaller particles are in the middle of the larger ones. The emission intensity at 612 nm originated from ~1D_2→~ 3H_4 transition of Pr~(3+) ions increases with the elevated calcination temperature due to a higher crystallinity. Excitation curves consist of two strong broad bands centered at about 330 and 380 nm and a weaker broad band range from 450 to 500 nm. The sample prepared by the hydrothermal method has better luminescent properties than that of its counterpart prepared by the solid-state method, especially the improvement of near-UV region (380 nm) excitation intensity.
机译：以尿素为矿化剂，通过水热法合成了Ca_（0.8）Zn_（0.2）TiO_3：0.2 mol％Pr〜（3+）的红色荧光粉。研究了所得磷光体的晶体结构，微观形态和发光性质。结果表明，较高的煅烧温度不会改变壳厚度为210-480 nm的空心球颗粒的形状，较小的颗粒位于较大的颗粒中间。 Pr〜（3+）离子的〜1D_2→~~ 3H_4跃迁在612 nm处的发射强度由于较高的结晶度而随煅烧温度的升高而增加。激发曲线由两条强的宽带组成，中心在约330和380 nm处，一条较弱的宽带在450至500 nm之间。通过水热法制备的样品具有比通过固态法制备的样品更好的发光特性，特别是在近紫外区域（380 nm）激发强度的提高。

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  • 来源
    《Journal of Materials Research》 |2013年第18期|2590-2597|共8页
  • 作者

    Liping Yu; Mao Xia; Xun Chen; Chunying Rong; Jinlin Zhang; Wenli Zhou; Ming Ma; Shixun Lian;

  • 作者单位

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Chemical Biology and Traditional Chinese Medicine Research (Ministry of Education), College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

    Key Laboratory of Sustainable Resources Processing and Advanced Materials of Hunan Province,College of Chemistry and Chemical Engineering, Hunan Normal University, Changsha 410081, China;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
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  • 正文语种 eng
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