Hydrothermal Preparation of BaWO4∶Eu3+ Red Phosphor and Its Luminescent Properties

YANG Xiao-xu; LV Shu-chen; QU Xiu-rong; MENG Qing-yu; ZHANG Li-li; SANG Shi-jing

doi:10.3788/fgxb20123308.0851

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Hydrothermal Preparation of BaWO₄∶Eu³⁺ Red Phosphor and Its Luminescent Properties

更新时间：2020-08-12

- Hydrothermal Preparation of BaWO₄∶Eu³⁺ Red Phosphor and Its Luminescent Properties
- Chinese Journal of Luminescence Vol. 33, Issue 8, Pages: 851-856(2012)
- 作者机构：
  
  哈尔滨师范大学光电带隙材料省部共建教育部重点实验室, 黑龙江哈尔滨 150025
- 作者简介：
- 基金信息：
- DOI：10.3788/fgxb20123308.0851
  CLC： O482.31
- Received：18 April 2012，
  
  Revised：25 June 2012，
  
  Published：10 August 2012
- 稿件说明：
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杨晓旭, 吕树臣, 曲秀荣, 孟庆裕, 张丽丽, 桑士晶. BaWO4∶Eu3+红色荧光粉的水热制备及其发光性能[J]. 发光学报, 2012,33(8): 851-856

YANG Xiao-xu, LV Shu-chen, QU Xiu-rong, MENG Qing-yu, ZHANG Li-li, SANG Shi-jing. Hydrothermal Preparation of BaWO4∶Eu3+ Red Phosphor and Its Luminescent Properties[J]. Chinese Journal of Luminescence, 2012,33(8): 851-856
杨晓旭, 吕树臣, 曲秀荣, 孟庆裕, 张丽丽, 桑士晶. BaWO4∶Eu3+红色荧光粉的水热制备及其发光性能[J]. 发光学报, 2012,33(8): 851-856 DOI： 10.3788/fgxb20123308.0851.

YANG Xiao-xu, LV Shu-chen, QU Xiu-rong, MENG Qing-yu, ZHANG Li-li, SANG Shi-jing. Hydrothermal Preparation of BaWO4∶Eu3+ Red Phosphor and Its Luminescent Properties[J]. Chinese Journal of Luminescence, 2012,33(8): 851-856 DOI： 10.3788/fgxb20123308.0851.

摘要

采用水热法

通过变化水热反应时间制备出不同的BaWO

∶Eu

样品

利用XRD和SEM分析了样品的晶体结构和表面形貌

研究了基质晶体生长取向对BaWO

中Eu

离子特征发射的影响。实验结果表明:BaWO

∶Eu

样品在395 nm近紫外光或464 nm蓝光激发下发射578

592

612 nm的红光

其中612 nm(

→

)发射强度明显高于592 nm (

→

)。在水热温度160 ℃的情况下

所制备的样品均为四方相

不同的水热反应时间将影响晶体在各晶向的生长速度

进而影响晶体的对称性和发光性能。水热时间为10 h时的发射强度最大。

Abstract

The red phosphor powders BaWO

∶16%Eu

were successfully prepared by hydrothermal method in different hydrothermal time. The crystal structure and surface morphology of the phosphor as-prepared was characterized by XRD patterns and SEM

respectively. The correlation between the crystal orientation of the matrix and the characteristic emission of the doped rare earth ions Eu

were discussed. The pure phase structure BaWO

∶16%Eu

phosphor was obtained under the hydrothermal reaction at 160 ℃. The room temperature characteristic emission

→

and

→

(

2)of Eu

ions in the samples as-prepared were observed under the excitation of 395 nm or 464 nm light.

→

transition emission intensity was significantly higher than those of

→

and

→

. XRD analysis indicates that the samples prepared at a hydrothermal temperature of 160 ℃ are all tetragonal. The growth rates of each crystal face vary with different hydrothermal time. This difference leads to a change of crystal symmetry and the luminescent properties of BaWO

∶Eu

samples. The optimized hydrothermal time is 10 h for the Eu

doping concentration of 16%.

关键词

Keywords

references

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