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ZnS:Ag luminescent nanoparticles synthesized with different molar ratio of S/Zn

机译：不同S / Zn摩尔比合成ZnS：Ag发光纳米粒子

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摘要

ZnS:Ag (Ag+-doped ZnS) nanoparticles have been synthesized through the hydrothermal route, and the effects of the molar ratio of S/Zn in reagents have been studied. The products are all cubic sphalerite structure, and the crystallinity is generally increased as this ratio rises. The ratio less than 1 leads to small particles less than 10 nm, and the ratio more than 1 leads to large particles between 20～30 nm. Luminescence properties of samples show significant dependence on the ratio. The sample synthesized using stoichiometric reagents during hydrothermal preparation exhibits the strongest blue emission in this series. There is significant defect luminescence in samples synthesized using nonstoichiometric reagents and the Ag-related luminescence is quenched in them.
机译：通过水热法合成了ZnS：Ag（Ag +掺杂的ZnS）纳米粒子，研究了S / Zn摩尔比对试剂的影响。产物均为立方闪锌矿结构，结晶度通常随着该比例的增加而增加。小于1的比例导致小于10 nm的小颗粒，大于1的比例导致20〜30 nm之间的大颗粒。样品的发光性质显示出对比率的显着依赖性。在水热制备过程中使用化学计量试剂合成的样品显示出该系列中最强的蓝色发射。使用非化学计量试剂合成的样品中存在明显的缺陷发光，并且在其中淬灭了与银有关的发光。

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  • 来源
  • 会议地点 Qingdao(CN)
  • 作者

    Hua Qu; Lixin Cao; Ge Su; Wei Liu; Yuanguang Sun; Bohua Dong;

  • 作者单位

    Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China;

    Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China;

    Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China;

    Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China;

    Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China;

    Institute of Material Science and Engineering, Ocean University of China Qingdao 266100, P. R. China;

  • 会议组织
  • 原文格式 PDF
  • 正文语种
  • 中图分类 工程材料学;
  • 关键词

    ZnS:Ag; nanoparticles; luminescence; hydrothermal synthesis;

    机译：ZnS：Ag;纳米粒子发光水热合成;

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