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Energy-storing type long-afterglow light-emitting materials with fluorescence property and method for preparing same

A long afterglow luminescence, energy storage technology, applied in luminescent materials, chemical instruments and methods, etc., can solve the problems of human harm, poor chemical stability, poor brightness, etc., achieve good weather resistance, long service life, initial brightness high effect

Inactive Publication Date: 2006-12-27
连云港国亚进出口贸易有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the short luminescence time of sulfide phosphors, the brightness is not good; the chemical stability is poor
In order to change these shortcomings, some people have added radioactive substances to sulfide to compensate for its shortcomings, but the operation of adding radioactive substances is not only harmful to the human body, but also pollutes the environment.
Since the 1990s, many people have invested a lot of experiments and invented long-lasting luminescent materials based on strontium aluminate, which greatly improved the luminous brightness, but none of them have fluorescence.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Example 1. A long afterglow luminescent material with fluorescent energy storage, its structural formula is,

[0024] (Ca x Sr 1-x ) 4 Al 14 o 25 :aEu·bDy,

[0025] SrAl 2 o 4 : aEu bTb wherein, X=0.0001 mol,

[0026] a = 0.0001 mol, b = 0.0001 mol.

Embodiment 2

[0027] Example 2. A long afterglow luminescent material with fluorescent energy storage, its structural formula is,

[0028] (Ca x Sr 1-x ) 4 Al 14 o 25 :aEu·bDy,

[0029] SrAl 2 o 4 : aEu bTb wherein, X=0.1500 mole,

[0030] a = 0.1800 moles, b = 0.2000 moles.

Embodiment 3

[0031] Example 3. A long afterglow luminescent material with fluorescent energy storage, its structural formula is,

[0032] (Ca x Sr 1-x ) 4 Al 14 o 25 :aEu·bDy,

[0033] SrAl 2 o 4 : aEu bTb wherein, X=0.0005 mol,

[0034] a = 0.0005 moles, b = 0.0005 moles.

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PUM

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Abstract

The invention relates the fluorescence accumulation of energy long persistence luminescent material, comprising SrCO3, Al2O3, 75.9-96.0wt% CaCO3, and 0.5-1.5wt% Eu2O3. The raw material comprises 0.1-0.8wt% auxiliary activator chosen from Dy2O3 and Tb4O7, 2-15wt% H3BO3 and 0.1-6.8wt% H2C2O4. The invention also discloses the preparing method. The invention possesses the fluorescent light and long persistence dual natures.

Description

technical field [0001] The invention relates to a luminescent material, in particular to a fluorescent energy storage type long afterglow luminescent material; the invention also relates to a preparation method of the fluorescent energy storage type long afterglow luminescent material. Background technique [0002] The energy-storage luminescent materials in the prior art are made by sintering at high temperature with sulfides such as ZnS:Cu as the main matrix. Due to the short luminescence time of the sulfide phosphor, the brightness is not good; the chemical stability is poor. In order to change these shortcomings, some people have added radioactive substances to sulfide to compensate for its shortcomings, but the operation of adding radioactive substances is not only harmful to the human body, but also pollutes the environment. Since the 1990s, many people have invested a lot of experiments and invented long-lasting luminescent materials based on ...

Claims

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Application Information

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IPC IPC(8): C09K11/80
Inventor 村泽清則许忠陈中军王加相
Owner 连云港国亚进出口贸易有限公司
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