Na+离子掺杂Gd2O3 ∶ Sm3+纳米晶的发光增强

刘广生; 丁玲红; 张伟风

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Na⁺离子掺杂Gd₂O₃ ∶ Sm³⁺纳米晶的发光增强

论文 | 更新时间：2020-08-12

- Na⁺离子掺杂Gd₂O₃ ∶ Sm³⁺纳米晶的发光增强
- Enhanced Photoluminescence of Na⁺-doped Gd₂O₃ ∶ Sm³⁺ Nanocrystals
- 发光学报 2010年31卷第5期页码：706-711
- 作者机构：
  
  河南大学物理与电子学院, 河南开封 475004
- 作者简介：
- 基金信息：
  
  河南省高等学校创新人才培养工程资助课题(200211)();河南大学开放基金(2006)资助项目()
- DOI：
  中图分类号： O482.31
- 收稿：2009-07-11，
  
  修回：2009-9-26，
  
  网络首发：2010-09-21，
  
  纸质出版：2010-09-21
- 稿件说明：
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刘广生, 丁玲红, 张伟风. Na+离子掺杂Gd2O3 ∶ Sm3+纳米晶的发光增强[J]. 发光学报, 2010,31(5): 706-711

LIU Guang-sheng, DING Ling-hong, ZHANG Wei-feng. Enhanced Photoluminescence of Na+-doped Gd2O3 ∶ Sm3+ Nanocrystals[J]. 发光学报, 2010,31(5): 706-711
刘广生, 丁玲红, 张伟风. Na+离子掺杂Gd2O3 ∶ Sm3+纳米晶的发光增强[J]. 发光学报, 2010,31(5): 706-711 DOI：

LIU Guang-sheng, DING Ling-hong, ZHANG Wei-feng. Enhanced Photoluminescence of Na+-doped Gd2O3 ∶ Sm3+ Nanocrystals[J]. 发光学报, 2010,31(5): 706-711 DOI：

摘要

采用柠檬酸作燃烧剂

在柠檬酸-硝酸盐体系下制备了Gd

∶ Sm

和Gd

∶ Sm

纳米晶。用X射线衍射仪、透射电子显微镜、荧光光谱仪等对样品的结构、形貌和光致发光性能进行了分析。结果表明:所得纳米样品为纯立方相

晶粒尺寸约为30 nm。在室温下

用275 nm激发光激发各样品时

可观测到Sm

离子的较强发光

其主发射峰位分别位于561.5

603.5

651.5 nm

分别对应着Sm

离子的

5/2

rarr;

5/2

rarr;

7/2

和

5/2

rarr;

9/2

的电子跃迁

其中以

5/2

rarr;

7/2

跃迁的光谱强度最强。实验表明:Na

离子的掺入使得Sm

离子的光发射强度显著增强。对引起样品荧光强度变化的原因进行了分析。

Abstract

paper

关键词

Keywords

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