Luminescent film and its preparation method and use

A luminescent film and thin film technology, applied in luminescent materials, chemical instruments and methods, image/graphic display tubes, etc., can solve the problems of poor density and uniformity, reflection stability, low electrical conductivity, etc., and achieve strong adhesion, heat High stability and uniform surface effect

Inactive Publication Date: 2005-06-29
TIANJIN UNIVERSITY OF TECHNOLOGY
View PDF0 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The conductivity of the screen is not high due to the contact resistance between the particles
In addition, the problem of adhesion between particles and between particles and the substrate is also difficult to overcome
At the same time, the surface of the screen prepared by this method is rough, dense and poor in uniformity, which is easy to cause light reflection and has poor stability and low resolution.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The chemical expression of luminescent thin film of the present invention is: (by molar ratio)

[0017] Y 3(1-x-y) (Al z Ga (1-z) ) 5 o 12 :Tb 3x , A 3y

[0018] Among them: 0.0001

[0019] 0.0001

[0020] 0≤z≤1;

[0021] A can be Gd or Ce, Nd, Tm, Pr, or a combination of any two of them.

[0022] The raw material used in the present invention, selects the Y that the purity is 99.99% for use 2 o 3 , Tb 2 o 3 , Ga 2 o 3 , Al 2 o 3 , Gd 2 o 3 , Ce 2 o 3 ,Nd 2 o 3 , Tm 2 o 3 , Pr 2 o 3 . The solvent is water or ethanol.

[0023] In the film Y 3(1-x-y) (Al z Ga (1-z) ) 5 o 12 :Tb 3x , A 3y In chemical expressions, the values ​​of x, y, and z can also be in the following ranges:

[0024] 0.0001

[0025] 0.0001

[0026] 0≤z≤1.

[0027] Or the value of x, y, z is in the following range:

[0028] 0.1

[0029] 0.1

[0030] 0≤z≤1.

[0031] A better luminescent film can be expressed by the follow...

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

PropertyMeasurementUnit
diameteraaaaaaaaaa
thicknessaaaaaaaaaa
Login to view more

Abstract

The invention include a lightening film and its preparing method and application. The chemical formula of lightening film: Y3(1-x-y)(AlzGa(1-z))5O12:Tb3x, A3y, 0.0001<x íœ0.3; 0.0001<yíœ0.3; 0íœzíœ1; A=Ce, Nd, Tm, Pr or mix of the two elements. Its preparing method is: burn the material for making target according to need, use electron beam evaporation coating to grow lightening film on the washed substrate and the time for growth id decided by speed and width of growth, finally place the film into program furnace to be heated to reach 500-700deg.C by the speed of 100deg.C / h, and kept for 2-3h. The lightening film prepared by the invention has average and compact surface without crack, average size of particle, and its width can be controlled, with outstanding lightening performance.

Description

【Technical field】 [0001] The invention relates to luminescent physical materials and display technology, in particular to a luminescent thin film and its preparation method and application. 【technical background】 [0002] Display screens made of luminescent materials play a very important role in cathode ray tubes, electroluminescent and field emission display devices. At present, there are many obstacles in applying the display screen made of luminescent powder to field emission display. Due to the contact resistance between the particles, the conductivity of the screen is not high. In addition, the problem of adhesion between particles and between particles and the substrate is also difficult to overcome. At the same time, the surface of the screen prepared by this method is rough, dense and poor in uniformity, which is easy to cause light reflection and has poor stability and low resolution. Therefore, the preparation of luminescent films with excellent properties has ...

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): C09K11/80H01J31/12
Inventor 李岚张晓松
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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