Application of Ultrasonic Dispersion in Preparation of Small Particles (Y,Gd) BO3 : Eu3+ Powder

SHANG Shu-juan; YUAN Xi-ming; WANG Yong-qian; WANG Juan-juan

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Application of Ultrasonic Dispersion in Preparation of Small Particles (Y,Gd) BO₃ : Eu³⁺ Powder

Material Physics & Chemistry | 更新时间：2020-08-12

- Application of Ultrasonic Dispersion in Preparation of Small Particles (Y,Gd) BO₃ : Eu³⁺ Powder
- Chinese Journal of Liquid Crystals and Displays Vol. 25, Issue 2, Pages: 186-191(2010)
- 作者机构：
  
  1. 中国地质大学材料科学与化学工程学院,湖北武汉,430074
  2. 教育部纳米矿物材料及应用工程研究中心(中国地质大学),湖北武汉,430074
- 作者简介：
- 基金信息：
- DOI：
  CLC： TN104.3
- Received：20 July 2009，
  
  Revised：02 January 1900，
  
  Published Online：30 April 2010，
  
  Published：30 April 2010
- 稿件说明：
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尚淑娟;袁曦明;王永钱;王娟娟;. 超声分散技术在制备小颗粒 (Y,Gd)BO3 : Eu3+粉体中的应用[J]. 液晶与显示, 2010,25(2): 186-191

SHANG Shu-juan;YUAN Xi-ming;WANG Yong-qian;WANG Juan-juan;. Application of Ultrasonic Dispersion in Preparation of Small Particles (Y,Gd) BO3 : Eu3+ Powder[J]. 液晶与显示, 2010,25(2): 186-191
尚淑娟;袁曦明;王永钱;王娟娟;. 超声分散技术在制备小颗粒 (Y,Gd)BO3 : Eu3+粉体中的应用[J]. 液晶与显示, 2010,25(2): 186-191 DOI：

SHANG Shu-juan;YUAN Xi-ming;WANG Yong-qian;WANG Juan-juan;. Application of Ultrasonic Dispersion in Preparation of Small Particles (Y,Gd) BO3 : Eu3+ Powder[J]. 液晶与显示, 2010,25(2): 186-191 DOI：

摘要

采用共沉淀法结合超声分散技术制备亚微米级红色荧光粉(Y

Gd)BO

∶ Eu

研究了超声时间对离子混合及沉淀过程的影响

以及进而对粉体性能的影响。采用红外光谱(IR)、扫描电子显微镜(SEM)、粉末X射线衍射(XRD)、PDP真空紫外荧光粉测试系统对荧光粉的组成、结构与光学性能等进行表征

结果表明:(Y

Gd)BO

∶ Eu

中基团中B原子以四配位为主

同时混有三配位

主体基质YBO

以六方碳钙石结构存在

空间群为 P63/mmc(194)

晶胞参数

a= 3.778

=8.814;在离子混合和沉淀过程中经过超声分散制备的粉体与未经超声分散制备的粉体相比较

相对发光强度提高

色坐标红移(

x= 0.639 2

=0.360 4

=0.642 2

=0.357 5)

红橙比(626 nm/592 nm)提高12%

粒径细小

颗粒形貌均匀

分散性良好。

Abstract

Sub-micron of red phosphor (Y

Gd)BO

: Eu

was prepared by co-precipitation method combined with ultrasonic dispersion. The effects of ultrasonic time on the ion-mixing and the precipitation process

thereby the effect on the performance of powders were studied. The composition

structure and optical properties under VUV were characterized by using infrared spectroscopy (IR)

scanning electron microscopy (SEM)

powder X-ray diffraction (XRD)

PDP VUV phosphor test system. The results showed that groups in (Y

Gd)BO

: Eu

is four-coordinate-based with a mixture of three-coordinate

Gd)BO

is structure of vaterite

the space group is P63/mmc (194)

with cell parameters are

=3.778

=8.814. Comparing the powder prepared by using ultrasonic dispersion in the process of ion mixing and precipitation with the powder prepared by not using ultrasonic dispersion

the relative luminescence intensity increases

color coordinates a red shift (

x=0.639 2

=0.360 4

x=0.642 2

= 0.357 5)

R/O (626 nm/592 nm) increases by 12%

particle size is about 600 nm. And it has a small uniform particle morphology and a good dispersion performance.

关键词

Keywords

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