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Influence of CsCl addition on the nanostructured voids and optical properties of 80GeS(2)-20Ga(2)S(3) glasses

机译:添加CsCl对80GeS(2)-20Ga(2)S(3)玻璃的纳米结构空隙和光学性能的影响

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摘要

The influence of CsCl content on the void evolution in (80GeS(2)-20Ga(2)S(3))(100-x)(CsCl)(x), x = 0; 5; 10; 15, chalcogenide glasses and changes of the optical response of these glasses due to CsCl addition are investigated. It is shown that structural agglomeration of voids occurs at addition and increasing of CsCl amount in base glasses. Supersaturation of GeS2-Ga2S3-CsCl glasses by CsCl results in the contraction of void volumes in (80GeS(2)-20Ga(2)S(3))(85)(CsCl)(15). By applying positron-positronium decomposition algorithm it was established that CsCl not only transforms voids in glass, but also forms new positron trapping sites in Ge-Ga-S glassy matrix. Therefore, CsCl addition results in the shift of fundamental transmission edge in the visible region. It is shown that doping by larger concentrations of CsCl may lead to "supersaturation" of base glasses and that adding 10 mol% of CsCl is apparently an optimal doping level in view of further modification of glasses with rare-earth ions. (C) 2016 Elsevier B.V. All rights reserved.
机译:CsCl含量对(80GeS(2)-20Ga(2)S(3))(100-x)(CsCl)(x)中的空隙演化的影响; x = 0; 5; 10;参照图15,研究了硫族化物玻璃和这些玻璃由于添加CsCl而引起的光学响应的​​变化。结果表明,在基础玻璃中,随着CsCl量的增加和增加,会发生空隙的结构团聚。 CsCl对GeS2-Ga2S3-CsCl玻璃的过饱和会导致(80GeS(2)-20Ga(2)S(3))(85)(CsCl)(15)中空隙体积的收缩。通过应用正电子-posit分解算法,可以确定CsCl不仅可以转变玻璃中的空隙,而且可以在Ge-Ga-S玻璃态基质中形成新的正电子俘获位点。因此,CsCl的添加导致可见区域中基本透射边缘的偏移。结果表明,以更高浓度的CsCl进行掺杂可能会导致基础玻璃“过饱和”,并且考虑到进一步用稀土离子改性玻璃,添加10 mol%的CsCl显然是最佳的掺杂水平。 (C)2016 Elsevier B.V.保留所有权利。

著录项

  • 来源
    《Optical Materials》 |2016年第9期|39-42|共4页
  • 作者单位

    Lviv Polytech Natl Univ 12 Bandera Str UA-79013 Lvov Ukraine;

    Opole Univ Technol Fac Phys 75 Ozimska Str PL-45370 Opole Poland;

    Vlokh Inst Phys Opt 23 Dragomanov Str UA-79005 Lvov Ukraine|Jan Dlugosz Univ Inst Phys 13-15 Al Armii Krajowej PL-42201 Czestochowa Poland;

    Ivan Franko Natl Univ Lviv Dept Elect 107 Tarnayskogo Str UA-79017 Lvov Ukraine;

  • 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

    Chalcogenide glass: optical properties; Positron annihilation; Nanosized voids;

    机译:硫属化物玻璃:光学性质;正电子ni灭;纳米空隙;

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