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首页> 外文期刊>Optical Materials >Eu~(3+) multicenter formation and luminescent properties of Ca_3Sc_2Si_3O_(12):Eu and Ca_2YScMgSiO_(12):Eu single crystalline films
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Eu~(3+) multicenter formation and luminescent properties of Ca_3Sc_2Si_3O_(12):Eu and Ca_2YScMgSiO_(12):Eu single crystalline films

机译:Ca_3Sc_2Si_3O_(12):Eu和Ca_2YScMgSiO_(12):Eu单晶膜的Eu〜(3+)多中心形成和发光性质

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摘要

The work is dedicated to the investigation of Eu3+ multicenter formation and luminescent properties of Ca3Sc2Si3O12:Eu (CSSG:Eu) and Ca2YScMgSiO12:Eu (CYMSSG:Eu) single crystalline film (SCF) phosphors, grown by liquid phase epitaxy method onto Gd3Ga2.5Al2.5O12 (GAGG) and Y3Al5O12 (YAG) substrates, respectively. We have found notable differences in the luminescent properties of CSSG:Eu and CYMSSG:Eu SCFs caused by the Eu3+ multicenter formation in both garnets due to the different local surrounding of Eu3+ ions in the dodecahedral positions by the non-isovalent Sc3+/Mg2+ and Si4+ cations in the octahedral and tetrahedral positions of garnet hosts, respectively. A feature of the Eu3+ center creation in CYMSSG:Eu garnet in comparison with CSSG:Eu counterpart is the possibility of localization of Eu3+ ions in dodecahedral sites of both Ca2+ and Y3+ cations. However, based on the obtained results, we have presupposed preferable localization of the Eu3+ ions mainly in the Y3+ positions of this garnet.
机译:该工作致力于研究Ca3Sc2Si3O12:Eu(CSSG:Eu)和Ca2YScMgSiO12:Eu(CYMSSG:Eu)单晶膜(SCF)荧光粉的Eu3 +多中心形成和发光性质,该荧光粉通过液相外延法生长到Gd3Ga2.5Al2上.5O12(GAGG)和Y3Al5O12(YAG)基板。我们发现由于石榴石中十二面体位置的Eu3 +离子周围的非等价Sc3 + / Mg2 +和Si4 +存在不同的局部包围,导致两种石榴石中Eu3 +多中心形成导致CSSG:Eu和CYMSSG:Eu SCF的发光特性存在显着差异。石榴石宿主的八面体和四面体位置的阳离子。与CSSG:Eu对应物相比,CYMSSG:Eu石榴石中Eu3 +中心生成的一个特征是,Eu3 +离子可能在Ca2 +和Y3 +阳离子的十二面体位点中定位。然而,基于获得的结果,我们假设Eu3 +离子的优选定位主要集中在该石榴石的Y3 +位置。

著录项

  • 来源
    《Optical Materials》 |2019年第4期|70-75|共6页
  • 作者单位

    Kazimierz Wielki Univ Bydgoszcz, Inst Phys, Powstancow Wielkopolskich Str 2, PL-85090 Bydgoszcz, Poland;

    Kazimierz Wielki Univ Bydgoszcz, Inst Phys, Powstancow Wielkopolskich Str 2, PL-85090 Bydgoszcz, Poland;

    Univ Ghent, L3, Dept Chem, Krijgslaan Str 281,B S3, B-9000 Ghent, Belgium;

    Univ Ghent, L3, Dept Chem, Krijgslaan Str 281,B S3, B-9000 Ghent, Belgium;

    Natl Acad Sci Ukraine, SSI Inst Single Crystals, Ave Nauki 60, UA-61178 Kharkov, Ukraine;

    Kazimierz Wielki Univ Bydgoszcz, Inst Phys, Powstancow Wielkopolskich Str 2, PL-85090 Bydgoszcz, Poland;

  • 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

    Ca2+-Mg2+-Si4+ based garnets; Single crystalline films; Eu3+ dopant; Luminescence;

    机译:Ca2 + -mg2 + -si4 +基的装饰;单晶薄膜;Eu3 +掺杂剂;发光;

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