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Inorganic luminescent materials of ultraviolet light solid light source

A technology of luminescent materials and solid light sources, applied in luminescent materials, the use of gas discharge lamps, sustainable buildings, etc., can solve problems such as poor color rendering, and achieve the effect of expanding the excitation spectrum

Inactive Publication Date: 2005-09-07
任慰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] Compared with the defect of poor color rendering (Color Rendering) of the existing white light solid light source, or the related defect of the white light solid light source with better color rendering only when the double-part inorganic powder mixture is used, the present invention proposes a brand new Phosphoric luminescent materials make the solid light source have a higher color rendering index (Rendering index), and only use a single chemical composition of inorganic powder to make a white light solid light source

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0087] 1.95mol SrCO 3 , 0.025mol Eu 2 o 3 , 0.99mol CaCO 3 , 0.01mol MnCO 3 , 0.975mol La 2 o 3 , 0.05mol CeO 2 Mixing, crushing, passing through a 500-mesh sieve, in H 2 :N 2 (10:90) calcined at 1000°C for 4 hours in a reducing atmosphere, and then added 3.1mol SiO 2 and mixed evenly, calcined in air at 1200°C for 6 hours, then changed the atmosphere to nitrogen, kept at 1200°C for 5 hours, then cooled, and the obtained product was washed with dilute HCl solution. Obtain the chemical equivalent formula as Sr 2-x Eu x +2 Ca 1-y mn +2 y La 2-z Ce z +3 (SiO 4 ) 3+0.1 compound of.

Embodiment 2

[0089] 1.90mol SrCO 3 , 0.05mol Sm 2 o 3 , 1mol CaCO 3 , 1mol Gd 2 o 3 , 0.95mol La 2 o 3 , 0.05CeO 2 Mixing, crushing, passing through a 500-mesh sieve, in H 2 :N 2 (5:95) calcined at 1200°C for 4 hours under reducing atmosphere, then added 3.1mol SiO 2 and mixed evenly, calcined in air at 1400°C for 6 hours, then changed the atmosphere to nitrogen, kept at 1400°C for 5 hours, then cooled, and the obtained product was washed with dilute HCl solution. Obtain the chemical equivalent formula as Sr 2-x SM +2 x Ca 1 La 1-z Gd 1 Ce +3 z (SiO 4 ) 3-0.1 compound of.

Embodiment 3

[0091] 1.90mol SrCO 3 , 0.05mol Eu 2 o 3 , 1mol CaCO 3 , 0.49molLa 2 o 3 , 0.49mol Y 2 o 3 , 0.01mol Tb 2 o 3 , 0.02mol CeO 2 Mixing, crushing, passing through a 500-mesh sieve, in H 2 :N 2 (10:90) calcined at 1400°C for 4 hours under a reducing atmosphere, and then added 3.1mol SiO 2and mixed evenly, calcined in air at 1500°C for 6 hours, then changed the atmosphere to nitrogen, kept at 1500°C for 5 hours, then cooled, and the obtained product was washed with dilute HCl solution. Obtain the chemical equivalent formula as Sr 2-x Eu +2 x Ca 1 La 1-z Ce +3 z Y 1-p Tb +3 p (SiO 4 ) 3+0.1 compound of.

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Abstract

The invention relates to an inorganic luminescent materials of ultraviolet light solid light source, for metasilicate-based ultraviolet luminary solid illuminating source, which mainly comprises Sr2CaLn2(SiO4)3+-delta, the luminescent central portion comprises Eu+2, Sm+2, Yb+2, Dy+2, Mn+2, Sn+2, and Cu+2 series +2 ions entering the cationic grating nodes, the secondl portion of the luminescent center comprises Ce+3, Eu+3, Tb+3, Sm+3, Dy+3 series +3 TR+3 ions distributed in the nodes, when the chemical index 0<=deata<=0.2, multiple-band white light with optical radiated wavelength lamda<=430nm can be produced at the status of semi-conductor heterojunction shortwave ultraviolet optical excitation using indium nitride and gallium nitride radicals, the color temperature T is between the range of 2500K to 12000K.

Description

technical field [0001] A kind of inorganic luminescent material of ultraviolet solid light source, its main component is Sr 2 CaLn 2 (SiO 4 ) 3±δ , generation of multiband white light in the state excited by short-wavelength ultraviolet light using a semiconductor heterojunction based on indium nitride and gallium nitride. Background technique [0002] In recent years, the manufacturing technology of solid-state light sources has been continuously improved, and the luminous efficiency has been greatly improved. Because solid-state light sources can emit light waves close to monochromatic, and have the advantages of high reliability, long service life, and wide operating range, they are widely used in many lighting applications. In equipment applications, solid-state light sources have gradually replaced traditional vacuum bulbs. [0003] Among them, the developing white light source is a multi-color mixed light, which can be perceived as white light by the human eye, inc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/79
CPCY02B20/181Y02B20/00
Inventor 罗维鸿
Owner 任慰
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