Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu<SUP>3+</SUP>

JIANG Xiao-lan; LU Shu-chen

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Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu³⁺

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- Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu³⁺
- Chinese Journal of Luminescence Vol. 30, Issue 5, Pages: 640-643(2009)
- 作者机构：
  
  哈尔滨师范大学黑龙江省纳米功能材料研究重点实验室, 黑龙江哈尔滨 150080
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：25 November 2008，
  
  Revised：1900-1-2，
  
  Published Online：30 October 2009，
  
  Published：30 October 2009
- 稿件说明：
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JIANG Xiao-lan, LU Shu-chen. Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu³⁺[J]. Chinese Journal of Luminescence, 2009, 30(5): 640-643.
DOI：

JIANG Xiao-lan, LU Shu-chen. Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu³⁺[J]. Chinese Journal of Luminescence, 2009, 30(5): 640-643. DOI：

摘要

利用共沉淀法制备了纳米CaO : Eu

发光粉体。并对不同掺杂浓度和不同煅烧温度下所制备的CaO : Eu

粉体进行室温发光性质的研究。在室温下观测到CaO : Eu

样品具有较强的Eu

离子特征发射。通过对不同煅烧温度下样品发射谱的对比

发现样品在591 nm和610 nm处的发射峰积分强度比随着煅烧温度的升高而降低

说明在不同的煅烧温度下

占据了两种不同的格位。对样品强发射峰进行监测

可观测到样品中的O

和Eu

离子之间形成的电荷迁移态。通过对比不同掺杂浓度下Eu

离子发射光谱

发现将Eu

掺杂到CaO基质中的适宜浓度为4%。

Abstract

The nanocrystal CaO : Eu

powders were prepared by co-precipitation method in this paper. Luminescent properties of CaO : Eu

with different sintering temperatures and dopant concentrations were studied. The results indicated that the samples have sharp characteristic emissions spectra of Eu

. With the comparison of emission spectra of CaO : Eu

annealed at different temperatures

the integral intensity ratio of the peaks between 591 nm and 610 nm is found to decline with the temperature increasing. It was revealed that the rare earth ions (Eu

) occupy different lattice position in the samples with different sintering temperatures. The change transfer state was observed between O

and the rare earth Eu

ion.The effect of the doped Eu

concentration on the fluorescence emission intensity was discussed

and the results showed the concentration quenching depends on the doped Eu

concentration. The optimum dopant concentration for the luminescence of Eu

is determined to be 0.4%.

关键词

Keywords

references

. Zhou Yonghui, Lin Jun, Zhang Hongjie. Some progress in nanostructure luminescent materials[J]. Chem. Research and Application (化学研究与应用), 2001, 13 (2):117-122 (in Chinese).

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Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu3+

DOI：

摘要

Abstract

关键词

Keywords

references

Preparation and Luminescent Properties of Nano Crystal CaO ∶ Eu³⁺