Unlock instant, AI-driven research and patent intelligence for your innovation.

Rare earth and non rare earth doped columbate, mixed crystal luminescent material thereof and melting method crystal growth method

A technology for luminescent materials and crystal growth, applied in polycrystalline material growth, crystal growth, luminescent materials, etc., can solve problems such as the difficulty of obtaining high-quality and large-sized crystals, and achieve high stopping power, high luminous efficiency, and fast decay time Effect

Inactive Publication Date: 2011-11-16
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
View PDF1 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the laser field, YVO 4 、GdVO 4 It is a high-efficiency laser substrate, and it is usually grown by the pulling method, but due to the volatilization of V during the growth process, it is difficult to obtain high-quality and large-sized crystals

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rare earth and non rare earth doped columbate, mixed crystal luminescent material thereof and melting method crystal growth method
  • Rare earth and non rare earth doped columbate, mixed crystal luminescent material thereof and melting method crystal growth method
  • Rare earth and non rare earth doped columbate, mixed crystal luminescent material thereof and melting method crystal growth method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0023] specific implementation plan

[0024] Rare earth and non-rare earth doped niobate and mixed crystal luminescent material, characterized in that the molecular formula of the compound is expressed as RE x RE' y m 1-x-y-z M' z (Nb 1-u Tb u )O 4 , where: RE, RE' represent rare earth elements Ce, Pr, Nd, Sm, Eu, Tb, Er, Ho, Tm, Yb and non-rare earth elements Bi, Ti, Cr, Ta, M' and M are Sc, Y, La , Gd, Lu, the value ranges of x, y and z are: 0≤x≤0.5, 0≤y≤0.5, 0≤z≤0.5, and 0<x+y+z<1, the value range of u 0≤u≤0.5.

[0025] The melt crystal growth method of the rare earth and non-rare earth doped niobate and its mixed crystal luminescent material is characterized in that it includes the following steps:

[0026] (1)RE x RE' y m 1-x-y-z M' z (Nb 1-u Tb u )O 4 Ingredients for crystal growth raw materials:

[0027] A. When RE and RE' are not Ce, use RE 2 o 3 , RE' 2 o 3 , M 2 o 3 , M' 2 o 3 、 Ta 2 o 5 , Nb 2 o 5 As a raw material, the ingredients are fo...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses rare earth and non rare earth doped columbate, a mixed crystal luminescent material thereof and a melting method crystal growth method. Raw materials prepared in proportion are subjected to fully mixing, compacting forming and high temperature sintering to become initial raw materials of crystal growth. The initial raw materials of crystal growth are added into a crucible, followed by heating to full melt, and become initial melt of melt method growth. Then melt methods like czochralski method, crucible descending method, temperature gradient method are used to grow and obtain a luminescent material whose molecular formula is RExREyM1-x-y-zMz(Nb1-uTbu)O4. The luminescent material has the advantages of strong prevention ability, high luminescence efficiency and short attenuation time, and can be used as a laser work matter and a detection material of high energy ray, high energy particle and the like.

Description

technical field [0001] The invention relates to the field of luminescent materials and crystal growth, in particular to rare earth Ce, Pr, Nd, Sum, Eu, Tb, Dy, Er, Ho, Tm, Yb doped, and non-rare earth Bi, Ti, Cr, Ta doped Luminescent materials of scandium niobate, yttrium niobate, lanthanum niobate, gadolinium niobate, lutetium niobate and mixed crystals thereof, and a crystal growth method of the melt method. technical background [0002] Finding new laser materials and scintillator materials with excellent performance is an important topic in the fields of solid-state laser technology, nuclear physics, nuclear medicine, and laser medicine. [0003] In the laser field, YVO 4 、GdVO 4 It is a high-efficiency laser substrate, and it is usually grown by the pulling method, but due to the volatilization of V during the growth process, it is difficult to obtain high-quality and large-sized crystals. In addition, Ce, Pr, Nd, Sum, Eu, Tb, Dy, Er, Ho, Tm|, Yb ions are important l...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/78C30B29/30
Inventor 张庆礼殷绍唐孙敦陆许兰刘文鹏罗建乔杨华军周鹏宇高进云
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI