Preparation and Luminescent Properties of Eu3+-doped Luminescent Materials BaO-TiO2-3SiO2

LI Jing-jing; WANG Xi-gui

doi:10.3788/fgxb20123306.0601

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Preparation and Luminescent Properties of Eu³⁺-doped Luminescent Materials BaO-TiO₂-3SiO₂

paper | 更新时间：2020-08-12

- Preparation and Luminescent Properties of Eu³⁺-doped Luminescent Materials BaO-TiO₂-3SiO₂
- Chinese Journal of Luminescence Vol. 33, Issue 6, Pages: 601-605(2012)
- 作者机构：
  
  内蒙古师范大学化学与环境科学学院功能材料物理与化学自治区重点实验室,内蒙古呼和浩特,010022
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123306.0601
  CLC： O644.19
- Received：12 February 2012，
  
  Revised：2012-4-26，
  
  Published Online：10 June 2012，
  
  Published：10 June 2012
- 稿件说明：
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李晶晶, 王喜贵. Eu3+掺杂BaO-TiO2-3SiO2发光材料的制备与发光性质[J]. 发光学报, 2012,(6): 601-605

LI Jing-Jing, WANG Xi-Gui. Preparation and Luminescent Properties of Eu3+-doped Luminescent Materials BaO-TiO2-3SiO2[J]. Chinese Journal of Luminescence, 2012,(6): 601-605
李晶晶, 王喜贵. Eu3+掺杂BaO-TiO2-3SiO2发光材料的制备与发光性质[J]. 发光学报, 2012,(6): 601-605 DOI： 10.3788/fgxb20123306.0601.

LI Jing-Jing, WANG Xi-Gui. Preparation and Luminescent Properties of Eu3+-doped Luminescent Materials BaO-TiO2-3SiO2[J]. Chinese Journal of Luminescence, 2012,(6): 601-605 DOI： 10.3788/fgxb20123306.0601.

摘要

采用溶胶-凝胶法在室温下制备了以BaO-TiO

-3SiO

为基质的稀土Eu

掺杂的发光材料

各材料的量比为

(Ba):

(Ti):

(Si):

(Eu)=1:1:3:

。通过DTA-TG、IR、XRD、激发和发射光谱对材料的结构和发光性能进行了分析。DTA-TG测试表明

样品在50~400 ℃之间出现明显失重现象

说明在此过程中凝胶中的吸附水、乙醇、醋酸等物质发生了脱附释放。IR光谱显示

制备的样品中主要存在TiOSi和OSiO键。XRD测试证明

材料属于非晶态。激发和发射光谱图显示

材料制备的最佳退火温度为800 ℃

的最佳掺杂比例为

(Eu)=5.7510

-3

。在612 nm监测波长下

测得的最佳激发波长为紫外光395 nm 和可见光465 nm

即在395 nm和465 nm光激发下

材料发射的红光单色性好且强度基本相同。

Abstract

doped BaO-TiO

-3SiO

luminescent materials have been synthesized by Sol-gel method

the molar ratio of this fluorescence materials is

(Ba):

(Ti):

(Si):

(Eu)=1:1:3:

. The crystal structure and the luminescent properties of the samples are measured and characterized by using the method of DTA-TG

powder XRD and excitation and emission spectra

respectively. The DTA-TG analysis shows that the weightlessness is obvious in the temperature range of 50~400 ℃

and this phenomenon corresponds to the loss of dissociated water

ethanol and acetic acid. The IR spectra shows that the samples are mostly composed of the TiOSi and OSiO bonds. Powder XRD analysis indicates that the samples are non-crystal material. The excitation and emission spectra show that the best annealing temperature is 800 ℃ for preparing material and the optimum Eu

doping molar ratio is

(Eu)=5.7510

-3

. It also shows that the best excitation lights are the ultraviolet light with the wavelength of 395 nm and the visible light with the wavelength of 465 nm when the wavelength of the monitoring light is 612 nm

that is to say

the monochromaticity and the luminescent intensity of red light excited from the samples are optimum and basically the same when the wavelengths of the excitation lights are 395 nm and 465 nm

respectively.

关键词

Keywords

references

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