Synthesis and Luminescence of Nano-microcrystal of Gd1-xEuxAl(BO3)4

MENG Jin-xian; YAO Yan-hong; KANG Zhen-Jin

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Synthesis and Luminescence of Nano-microcrystal of Gd_1-xEu_xAl(BO₃)₄

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- Synthesis and Luminescence of Nano-microcrystal of Gd_1-xEu_xAl(BO₃)₄
- Chinese Journal of Luminescence Vol. 28, Issue 1, Pages: 79-82(2007)
- 作者机构：
  
  1. 延边大学, 理学院, 吉林, 延吉,133002
  2. 延边大学, 分析测试中心, 吉林, 延吉,133002
- 作者简介：
- 基金信息：
- DOI：
  CLC： O482.31
- Received：29 March 2006，
  
  Revised：30 April 2006，
  
  Published：20 January 2007
- 稿件说明：
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孟金贤, 姚艳红, 康振晋. Gd1-xEuxAl3(BO3)4纳米晶的合成及其发光性能[J]. 发光学报, 2007,28(1): 79-82

MENG Jin-xian, YAO Yan-hong, KANG Zhen-Jin. Synthesis and Luminescence of Nano-microcrystal of Gd1-xEuxAl(BO3)4[J]. Chinese Journal of Luminescence, 2007,28(1): 79-82
孟金贤, 姚艳红, 康振晋. Gd1-xEuxAl3(BO3)4纳米晶的合成及其发光性能[J]. 发光学报, 2007,28(1): 79-82 DOI：

MENG Jin-xian, YAO Yan-hong, KANG Zhen-Jin. Synthesis and Luminescence of Nano-microcrystal of Gd1-xEuxAl(BO3)4[J]. Chinese Journal of Luminescence, 2007,28(1): 79-82 DOI：

摘要

以高温固相反应法合成了Gd

1-x

(BO

)

:Eu

纳米荧光粉。使用XRD分析确定了样品的物相

并根据谢乐公式计算出其微晶的纳米粒度。采用了“粉末悬浮法”以甘油为分散介质

在RF540荧光光度计上测试了纳米晶荧光粉的激发光谱和发射光谱。GdAl

(BO

)

基质本身发光

GdAl

(BO

)

:Eu纳米荧光粉表现了Eu

的特征发射光谱

其中最强峰为

→

发射

表明晶体结构中没有对称中心格位。实验表明在GdAl

(BO

)

:Eu纳米晶荧光粉中

存在Gd

对Eu

发光的基质敏化作用。

Abstract

REAl

(BO

)

was well known as good laser materials

but its fluorescent nano-powders have not been well studied.A series of fluorescent nano-powders Gd

1-x

(BO

)

has been synthesized by solid reactions.Raw materials Al

were well mixed and baked at 400℃/2h first

then 750℃/4 h

and 1150℃/8h the last.After being well grinded the fluorescent powders of Gd

1-x

(BO

)

has been synthesized.The samples were characterized by XRD

and the microcrystal diameter of the samples were calculated to be within 100 nanometer by XRD diagram.Their luminescent properties of the fluorescent powders were measured by the RF540 fluorescence spectrometer(Japan)with “suspending powder method” with glycerin as the dispersing medium.The samples of GdAl

(BO

)

gave the emission spectrum at 310 nm when excited by the light of 280 nm

and the spectrum of dispersing medium glycerin did not disturb the spectrum of GdAl

(BO

)

.The samples of Gd

1-x

(BO

)

almost had the same emission spectrum of Eu

no matter they were excited by 390 nm or by 280 nm.The strongest emission of Eu

was

→

transition.So there was no symmetry position in the crystal structure of Gd

1-x

(BO

)

by the rule of fluorescent probe.The emission spectrum of

→

was higher excited by 280 nm than that excited by 390 nm.It was the evidence of the energy transfer between Gd

-Eu

.The experiment results show that fluorescent powders with nanometer microcrystals of Gd

1-x

(BO

)

can be synthesized by solid reactions.GdAl

(BO

)

:Eu

gives 618 nm emission spectrum as the transition

→

and there was no symmetry position in the crystal structure of Gd

1-x

(BO

)

.The experiment results show that there was energy transfer between Gd

-Eu

.Because of its fine properties of fluorescence and its stability of material

the fluorescent nano-powders of Gd

1-x

(BO

)

may possess great value for being further studied and used.

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