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首页> 外文期刊>Optical Materials >Rare earth doped silicate-oxyfluoride glass ceramics incorporating LaF_3 nano-crystals for UV-LED color conversion
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Rare earth doped silicate-oxyfluoride glass ceramics incorporating LaF_3 nano-crystals for UV-LED color conversion

机译：掺入LaF_3纳米晶体的稀土掺杂硅酸盐-氟氧化物玻璃陶瓷，用于UV-LED颜色转换

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摘要

Rare earth doped oxyfluoride glass ceramics with LaF_3 nano-crystals formed inside were fabricated for color converter of UV-LED. Among various rare earth ions, Dy~(3+) and Eu~(3+) showed practically utilizable visible emissions under UV-LED excitation of 365 nm. The visible emission has been improved by the formation of LaF_3 brought by heat treatment. X-ray diffraction and transmission electron microscopy along with its energy dispersive spectra confirmed the formation of LaF_3 nano-crystals. Compositional dependence and the effects of heat treatment conditions on the visible emissions have been investigated. The CIE chromaticity coordinates of the glasses were also examined for Dy~(3+) singly doped and co-doped samples. The effect of LaF_3 nano-crystals and co-dopants on the visible emission properties of Dy~(3+) was discussed.
机译：制造了内部形成LaF_3纳米晶体的稀土掺杂氟氧化物玻璃陶瓷，用于UV-LED的颜色转换。在各种稀土离子中，Dy〜（3+）和Eu〜（3+）在365 nm的UV-LED激发下显示出可实际利用的可见光发射。通过热处理形成LaF_3改善了可见光发射。 X射线衍射和透射电子显微镜及其能量色散光谱证实了LaF_3纳米晶体的形成。已经研究了成分依赖性和热处理条件对可见光发射的影响。还检查了Dy〜（3+）单掺杂和共掺杂样品的玻璃的CIE色度坐标。讨论了LaF_3纳米晶体和共掺杂物对Dy〜（3+）可见光发射特性的影响。

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  • 来源
    《Optical Materials》 |2013年第11期|2034-2038|共5页
  • 作者

    Suk-Rok Bae; Yong Gyu Choi; Won Bin Im; Ki Seok Lee; Woon Jin Chung;

  • 作者单位

    Institute for Rare Metals & Division of Advanced Materials Engineering Kongju National University Cheonan Chungnam 330-717 Republic of Korea;

    Department of Materials Science and Engineering Korea Aerospace University Coyang Cyeonggi 412-791 Republic of Korea;

    School of Materials Science and Engineering Chonnam National University 300 Yongbong-dong Buk-gu Gwangju 500-757 Republic of Korea;

    Department of Mechanical Engineering & Automotive Engineering Kongju National University Cheonan Chungnam 330-717 Republic of Korea;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    LaF_3; Glass-ceramics; Nano-crystals; Dy~(3+); Luminescence;

    机译：LaF_3;玻璃陶瓷;纳米晶体;Dy〜（3+）;发光性;

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