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A glass-ceramic membrane composite material for laser lighting

A glass-ceramic film and composite material technology, applied in the field of solid luminescent materials, can solve the problems of lack of utilization materials and extremely high requirements for fluorescent conversion materials.

Active Publication Date: 2022-03-22
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the ultra-high power density of laser light-emitting diodes, a lot of heat will be generated at the spot during the working process, and the requirements for the fluorescent conversion materials used are extremely high, and the available materials are very scarce.

Method used

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  • A glass-ceramic membrane composite material for laser lighting
  • A glass-ceramic membrane composite material for laser lighting
  • A glass-ceramic membrane composite material for laser lighting

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Embodiment 1: the target crystal phase in this embodiment is (Lu 2 M)(Al 4 Si)O 12 : Ce 3+ Lu in 2 BaAl 4 SiO 12 : Ce 3 + , will analyze pure SiO 2 ;B 2 o 3 ;Al 2 o 3 ;Lu 2 o 3 ; CeO 2 ; BaCO 3 Powder, according to 35SiO 2 -30B 2 o 3 -5Al 2 o 3 -15 Lu 2 o 3 -3CeO 2 -12BaCO 3 Grind it in an agate mortar for more than half an hour to make it evenly mixed, put it in an alumina crucible, put it in a high-temperature furnace at 1500°C for 2 hours, then quickly pour the molten glass into a copper mold, and continue heat treatment at 520°C for 120 Minutes, pulverized, ground, and sieved to obtain Lu-containing 2 BaAl 4 SiO 12 : Ce 3+ Microcrystalline glass ceramic powder. Simultaneously, weigh according to the ratio of terpineol:ethyl cellulose of 97wt%:3wt%, and mix and stir at 80°C and 600 rpm to prepare an organic slurry mixture. According to the mass ratio of 1:1:1, weigh the organic slurry mixture, low melting point glass powder (10SiO 2 -35...

Embodiment 2

[0016] Embodiment 2: the target crystal phase in this embodiment is (Lu 2 M)(Al 4 Si)O 12 : Ce 3+ Lu in 2 (Sr 0.5 , Ba 0.5 )Al 4 SiO 12 : Ce 3+ , will analyze pure SiO 2 ;B 2 o 3 ;Al 2 o 3 ;Lu 2 o 3 ; CeO 2 ;SrCO 3 ; BaCO 3 Powder, according to 30SiO 2 -26B 2 o 3 -15Al 2 o 3 -10.9Lu 2 o 3 -0.1CeO 2 -9SrCO 3 -9BaCO 3 Grind it in an agate mortar for more than half an hour to make it evenly mixed, put it in an alumina crucible, put it in a high-temperature furnace at 1450°C for 2 hours, then quickly pour the molten glass into a copper mold, and continue heat treatment at 520°C for 120 Minutes, pulverized, ground, and sieved to obtain Lu-containing 2 (Sr 0.5 , Ba 0.5 ) Al 4 SiO 12 : Ce 3+ Microcrystalline glass ceramic powder. Simultaneously, weigh according to the ratio of terpineol:ethyl cellulose of 97wt%:3wt%, and mix and stir at 80°C and 600 rpm to prepare an organic slurry mixture. According to the mass ratio of 1:1:1, weigh the organic slu...

Embodiment 3

[0017] Embodiment 3: the target crystal phase in this embodiment is (Lu 2 M)(Al 4 Si)O 12 : Ce 3+ Lu in 2 (Ca 0.5 ,Sr 0.5 ) Al 4 SiO 12 : Ce 3+ , will analyze pure SiO 2 ;B 2 o 3 ;Al 2 o 3 ;Lu 2 o 3 ; CeO 2 ;SrCO 3 ; BaCO 3 Powder, according to 42SiO 2 -37B 2 o 3 -6Al 2 o 3 -5Lu 2 o 3 -5CeO 2 -2.5CaCO 3 -2.5SrCO 3 Grind it in an agate mortar for more than half an hour to make it evenly mixed, put it in an alumina crucible, put it in a high-temperature furnace at 1600°C for 2 hours, then quickly pour the molten glass into a copper mold, and continue heat treatment at 520°C for 120 Minutes, pulverized, ground, and sieved to obtain Lu-containing 2 (Ca 0.5 ,Sr 0.5 ) Al 4 SiO 12 : Ce 3+ Microcrystalline glass ceramic powder. Simultaneously, weigh according to the ratio of terpineol:ethyl cellulose of 97wt%:3wt%, and mix and stir at 80°C and 600 rpm to prepare an organic slurry mixture. According to the mass ratio of 1:1:1, weigh the organic slurry...

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Abstract

The present invention proposes a kind of containing (Lu 2 M)(Al 4 Si)O 12 : Ce 3+ The microcrystalline glass-ceramic membrane composite material aims to prepare a fluorescent conversion material with stable structure and can be used for laser lighting, and relates to the field of luminescent materials. The material in the present invention has suitable optical properties, and has the advantages of simple preparation process, batch preparation, "broad adjustable" spectrum, and the like. Thanks to the high-thermal-conductivity transparent sapphire substrate in the composite material that quickly conducts a large amount of heat at the spot, the composite material can effectively generate white light under the excitation of a high-power blue laser at 455 nm.

Description

technical field [0001] The invention relates to the field of solid luminescent materials, in particular to a glass ceramic film composite material that can be applied to laser lighting. Background technique [0002] In recent years, with the continuous advancement of domestic infrastructure construction and the gradual improvement of people's living standards, high-end car headlights, high-end projectors, high bay lights, square / port high pole lights, etc. Demand for high-power specialty lighting and high-power displays is increasing rapidly, resulting in a growing demand for ultra-high-power white solid-state lighting and displays. However, the current single-chip white light LEDs will produce a "sudden drop in efficiency" phenomenon caused by electron-hole Auger recombination, resulting in low power and low brightness, which obviously cannot directly meet the application requirements. In this regard, researchers usually package multi-chips into a module to increase the po...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/04C03C12/00C04B41/65
CPCC03C10/00C03C12/00C04B41/5022C04B41/5023C04B41/65C04B41/4535
Inventor 林世盛林航徐桔王元生
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI