Synthesis and Luminescent Properties of Afterglow Materials CaAl2O4∶Eu2+,Gd3+

DENG Jia-tao; FENG Wen-lin; ZENG Cao; ZHANG Ying; JIN Ye

doi:10.3788/fgxb20123312.1315

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Synthesis and Luminescent Properties of Afterglow Materials CaAl₂O₄∶Eu²⁺,Gd³⁺

更新时间：2020-08-12

- Synthesis and Luminescent Properties of Afterglow Materials CaAl₂O₄∶Eu²⁺,Gd³⁺
- Chinese Journal of Luminescence Vol. 33, Issue 12, Pages: 1315-1318(2012)
- 作者机构：
  
  1. 重庆理工大学光电信息学院重庆,400054
  2. 中国科学院国际材料物理中心,辽宁沈阳,110016
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123312.1315
  CLC： O482.31
- Received：14 August 2012，
  
  Revised：21 September 2012，
  
  Published：10 December 2012
- 稿件说明：
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邓家桃, 冯文林, 曾超, 张盈, 金叶. 长余辉发光材料CaAl2O4∶Eu2+,Gd3+ 的制备和发光性能研究[J]. 发光学报, 2012,33(12): 1315-1318

DENG Jia-tao, FENG Wen-lin, ZENG Cao, ZHANG Ying, JIN Ye. Synthesis and Luminescent Properties of Afterglow Materials CaAl2O4∶Eu2+,Gd3+[J]. Chinese Journal of Luminescence, 2012,33(12): 1315-1318
邓家桃, 冯文林, 曾超, 张盈, 金叶. 长余辉发光材料CaAl2O4∶Eu2+,Gd3+ 的制备和发光性能研究[J]. 发光学报, 2012,33(12): 1315-1318 DOI： 10.3788/fgxb20123312.1315.

DENG Jia-tao, FENG Wen-lin, ZENG Cao, ZHANG Ying, JIN Ye. Synthesis and Luminescent Properties of Afterglow Materials CaAl2O4∶Eu2+,Gd3+[J]. Chinese Journal of Luminescence, 2012,33(12): 1315-1318 DOI： 10.3788/fgxb20123312.1315.

摘要

采用高温固相法制备了CaAl

∶Eu

长余辉发光材料。利用X射线衍射(XRD)和荧光光谱测试等手段对所制备的样品进行结构表征和发光性能的分析

探究Eu

摩尔分数为3.5%

硼酸质量分数为0.5%

摩尔分数分别为2%

5%时样品的发光性能。研究结果表明:实验成功地合成了CaAl

∶Eu

粉晶

并且Eu

和Gd

的引入并未引起CaAl

晶体结构的改变。样品的激发光谱和发射光谱均为宽带谱

且发射光谱的最大峰值位于444 nm左右

属于Eu

的4f

5d→4f

跃迁

所发光为蓝光。蓝色荧光粉CaAl

∶3.5%Eu

3%Gd

的发光强度最好。

Abstract

The afterglow materials CaAl

∶Eu

were synthesized by high-temperature solid- phase method. The structure and luminescent properties of the samples were characterized by X-ray diffraction (XRD) and fluorescence spectra at room temperature. The effects of luminescent properties for 3.5% Eu

(mole fraction) and 0.5% boric acid (mass fraction) doped CaAl

∶Eu

with different mole fraction of Gd

(2%

5%) were investigated in detail. The results showed that CaAl

∶Eu

were successfully synthesized and the structure was not changed even introducing Eu

and Gd

into the samples. The photoluminescence excitation and emission spectra were both broad bands. The dominanted emission band centre located at about 444 nm which was the blue emission of the transition of 4f

5d→4f

. The luminescence intensity of blue phosphors CaAl

∶3.5%Eu

3%Gd

is the best among all samples.

关键词

Keywords

references

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