Preparation method of rare earth doped nano zirconia up-conversion phosphor powder

A nano-zirconia and rare earth doping technology, applied in chemical instruments and methods, luminescent materials, etc., can solve the problems of concentration quenching, reduction of fluorescence emission intensity, interaction enhancement, etc., and achieve simple preparation process and high fluorescence efficiency of finished products , low-cost effect

Inactive Publication Date: 2012-09-12
HARBIN ENG UNIV
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when the doping concentration is too high, due to the shortening of the distance between the rare earth ions and the strengthening of the interaction, the rare earth ions at a high en

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
  • Preparation method of rare earth doped nano zirconia up-conversion phosphor powder
  • Preparation method of rare earth doped nano zirconia up-conversion phosphor powder
  • Preparation method of rare earth doped nano zirconia up-conversion phosphor powder

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0017] Embodiment 1: according to formula ratio (molar ratio):

[0018] 0.05Er(NO 3 ) 3 : 1Zr(NO 3 ) 4 The xerogel of the synthesized sample was sintered at 800 degrees Celsius for 2 hours to obtain the precursor phosphor, and then calcined for a second time at 1100 degrees Celsius for 2 hours.

[0019] The basic formula remains unchanged, only Er(NO 3 ) 3 The proportion that accounts for, obtains following several different implementation modes:

Embodiment approach 2

[0020] Embodiment 2: according to formula ratio 0.1Er (NO 3 ) 3 : 1Zr(NO 3 ) 4 Preparation of xerogel, the following is the same as Embodiment 1.

Embodiment approach 3

[0021] Embodiment 3: according to formula ratio 0.15Er(NO 3 ) 3 : 1Zr(NO 3 ) 4 Preparation of xerogel, the following is the same as Embodiment 1.

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 provides a preparation method of rare earth doped nano zirconia up-conversion phosphor powder. The preparation method comprises respectively dissolving Zr(NO3)4 and Zr(NO3)3 into deionized water according to 0.05-0.2:1 of the molar ratio of the Zr(NO3)3 to Zr(NO3)4, stirring to enable the solution to be clear to obtain mixed solution, adding citric acid with the ratio of the citric acid to cation in the mixed solution being 4:1, then adding ammonia water, regulating the pH value of the solution to be 6.5-7.5 and stirring to form collosol; drying the collosol at the temperature of 130 DEG C to form gel, sintering the gel at the temperature of 800 DEG C to obtain white precursor phosphor powder, and finally calcining the precursor phosphor powder at the temperature of 1100 DEG C-1400 DEG C to obtain the rare earth doped nano zirconia up-conversion phosphor powder. The preparation method is a scheme which can effectively weaken concentration quenching effect of high-doping rare earth ions and has the advantages of being simple in synthetic process, low in cost and the like. In addition, the luminescent efficiency of finished products is high.

Description

technical field [0001] The invention relates to a preparation method of a rare earth-doped nano-luminescent material. Background technique [0002] Since the laser has a high energy density, excellent collimation and monochromaticity, since the laser was invented in 1960, it has attracted widespread attention. High-performance lasers made of different materials and methods have always been The focus of people's research. At present, the technology of using rare earth as active ions to realize laser output is relatively mature, including Er, Nd plasma doping LiYF 4 、NaYF 4 , YAlO 3 and Y 3 Al 5 o 12 Laser output near 1000nm, 1310nm and 1550nm emitted by other crystals. The current development of rare earth lasers has two general directions: one is to develop into the infrared long-wave field that is safe for human eyes and has less loss in the atmosphere and optical fibers; the other is to develop into the short-wave field with higher energy. Among them, the research ...

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
IPC IPC(8): C09K11/67
Inventor 刘禄陈玉金张建中张新陆
Owner HARBIN ENG UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap