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Luminescent film and its preparation method and use

A technology of light-emitting films and uses, applied in the directions of light-emitting materials, chemical instruments and methods, image/graphic display tubes, etc., can solve the problems of poor density and uniformity, reflection stability, rough screen surface, etc. High stability and low outgassing rate

Inactive Publication Date: 2007-03-14
TIANJIN UNIVERSITY OF TECHNOLOGY
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  • Abstract
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  • 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

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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 b...

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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 C09K 11 / 80 H01J 31 / 12 0 4 2 2004 / 11 / 5 1632052 2005 / 6 / 29 1304527 2007 / 3 / 14 2007 / 3 / 14 2007 / 3 / 14 Tianjin University of Technology Tianjin 300191 Li Lan Zhang Xiaosong liao xiaorong 12002 The Patent Agency Subvision of Tianjin Prospecting and Designing Institute of the Ministry of Water Conservacy and Power No.60 Dongting Road, Hexi District, Tianjin 300222

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

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09K11/80H01J31/12
Inventor 李岚张晓松
Owner TIANJIN UNIVERSITY OF TECHNOLOGY
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