Hydrothermal Synthesis and Photoluminescent Properties of SnO2 ∶ Eu3+ Nanocrystals

XU Chao-fa; LIU Xiao-hua

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Hydrothermal Synthesis and Photoluminescent Properties of SnO₂ ∶ Eu³⁺ Nanocrystals

paper | 更新时间：2020-08-12

- Hydrothermal Synthesis and Photoluminescent Properties of SnO₂ ∶ Eu³⁺ Nanocrystals
- Chinese Journal of Luminescence Vol. 31, Issue 5, Pages: 701-705(2010)
- 作者机构：
  
  1. 汕头大学物理系,广东汕头,515063
  2. 广东工业大学物理与光电工程学院, 广东广州 510000
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：07 July 2009，
  
  Revised：16 October 2009，
  
  Published Online：21 September 2010，
  
  Published：21 September 2010
- 稿件说明：
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许潮发, 刘晓华. SnO2 ∶ Eu3+ 纳米晶的水热法制备及发光性能[J]. 发光学报, 2010,31(5): 701-705

XU Chao-fa, LIU Xiao-hua. Hydrothermal Synthesis and Photoluminescent Properties of SnO2 ∶ Eu3+ Nanocrystals[J]. 发光学报, 2010,31(5): 701-705
许潮发, 刘晓华. SnO2 ∶ Eu3+ 纳米晶的水热法制备及发光性能[J]. 发光学报, 2010,31(5): 701-705 DOI：

XU Chao-fa, LIU Xiao-hua. Hydrothermal Synthesis and Photoluminescent Properties of SnO2 ∶ Eu3+ Nanocrystals[J]. 发光学报, 2010,31(5): 701-705 DOI：

摘要

采用水热法制备了Eu

掺杂SnO

纳米发光粉

样品在不同温度下热处理得到不同粒径尺寸的纳米颗粒。利用X射线衍射(XRD)与光致发光(PL)谱对样品进行表征。XRD分析表明:SnO

∶ Eu

样品均为纯相金红石结构。PL测量表明:水热法直接制备的样品的激发谱由Eu

的f-f本征激发峰组成

而经过热处理后样品的激发谱由O

-Eu

电荷迁移带和Eu

的f-f本征激发组成;样品的发光强度与颗粒大小有密切关系。

Abstract

SnO

∶ Eu

nanocrystals with different sizes in the ranges of 4 nm to 11 nm were prepared by hydrothermal method. X-ray diffraction (XRD) and photoluminescence (PL) measurements were used to characte-rize the sample. XRD showed that the samples structure kept pure rutile phase of SnO

. The excitation spectrum of the sample prepared without sintering only consisted of the intra shell f-f transitions of Eu

ions. The excitation spectra of the samples sintered at different temperature contained the intra shell f-f transitions of Eu

ions and the O

-Eu

charge transfer band. The emission intensities of the samples were closely related to the sizes of nanocrystals.

关键词

Keywords

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