Synthesis of Nano-sized Sr2SiO4 ∶ Eu3+ Phosphor by Combustion Method and Its Luminescence Properties

LEI Bing-fu; SHA Lei; LIU Ying-liang; MAN Shi-qing; YUE Song

doi:10.3788/fgxb20113206.0535

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Synthesis of Nano-sized Sr₂SiO₄ ∶ Eu³⁺ Phosphor by Combustion Method and Its Luminescence Properties

paper | 更新时间：2020-08-12

- Synthesis of Nano-sized Sr₂SiO₄ ∶ Eu³⁺ Phosphor by Combustion Method and Its Luminescence Properties
- Chinese Journal of Luminescence Vol. 32, Issue 6, Pages: 535-541(2011)
- 作者机构：
  
  1. 暨南大学物理学系思源实验室,广东广州,510632
  2. 暨南大学化学系纳米化学研究所,广东广州,510632
  3. 暨南大学电子工程系,广东广州,510632
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20113206.0535
  CLC： O482.31
- Received：26 January 2011，
  
  Revised：28 February 2011，
  
  Published Online：22 June 2011，
  
  Published：22 June 2011
- 稿件说明：
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雷炳富, 沙磊, 刘应亮, 满石清, 乐松. 纳米Sr2SiO4 ∶ Eu3+荧光粉的燃烧法合成及光谱性质[J]. 发光学报, 2011,32(6): 535-541

LEI Bing-fu, SHA Lei, LIU Ying-liang, MAN Shi-qing, YUE Song. Synthesis of Nano-sized Sr2SiO4 ∶ Eu3+ Phosphor by Combustion Method and Its Luminescence Properties[J]. Chinese Journal of Luminescence, 2011,32(6): 535-541
雷炳富, 沙磊, 刘应亮, 满石清, 乐松. 纳米Sr2SiO4 ∶ Eu3+荧光粉的燃烧法合成及光谱性质[J]. 发光学报, 2011,32(6): 535-541 DOI： 10.3788/fgxb20113206.0535.

LEI Bing-fu, SHA Lei, LIU Ying-liang, MAN Shi-qing, YUE Song. Synthesis of Nano-sized Sr2SiO4 ∶ Eu3+ Phosphor by Combustion Method and Its Luminescence Properties[J]. Chinese Journal of Luminescence, 2011,32(6): 535-541 DOI： 10.3788/fgxb20113206.0535.

摘要

利用快速燃烧合成方法制备了Sr

SiO

∶ Eu

纳米材料。用X射线粉末衍射、扫描电镜、稳态激发与发射光谱、高分辨发射光谱、位置选择激发光谱和发光衰减等测量对材料的结构、形貌和光致发光性质进行了研究。分析结果表明

通过二甲酰肼的快速燃烧

在800 ℃条件下反应3 min即可制得颗粒尺寸在80~100 nm左右的-Sr

SiO

∶ Eu

纳米材料

在紫外线激发下

所合成的样品具有良好的发光性能。由于纳米材料中表面格位的存在

的局域环境变得十分复杂

其发光寿命与体材料相比有明显的下降

并且发光衰减呈现由单指数衰减向双指数衰减转变的趋势。

Abstract

Nano-sized Sr

SiO

∶ Eu

phosphors were successfully synthesized by a rapid synthetic route using the combustion method. Through the chemical reaction of Sr(NO

)

Eu(NO

)

and fumed silica

pure-phase of nano-size -Sr

SiO

∶ Eu

can be obtained by sintering under 800 ℃ for 3 min. The crystallization and morphology of the as-synthesized Sr

SiO

∶ Eu

phosphors were investigated using XRD and scanning electron microscopy. The Sr

SiO

∶ Eu

particle size is in a range of 80~100 nm. Furthermore

luminescence properties of the nano-size Sr

SiO

∶ Eu

phosphors

including photoluminescence

high-resolution emission spectra

site-selective excitation and emission spectra and excited-state decay curves are also systemically discussed in this paper and compared with that of Sr

SiO

∶ Eu

prepared by the conventional high-temperature solid-state reaction method. Under UV light excitation

this phosphor shows intense red light. Due to the presence of the surface states that the Eu

are located

the local environment of the Eu

sites in nano-sized Sr

SiO

∶ Eu

phosphor are more complicated compared with that of the bulk material

which leads to the decreased excited lifetime values. Furthermore

the luminescence decay curves of Eu

changing from single-exponential to double-exponential due the presence of the surface states.

关键词

Keywords

references

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