Luminescent glass for laser lighting and preparation method thereof

A technology of light-emitting glass and laser lighting, applied in glass manufacturing equipment, glass furnace equipment, manufacturing tools, etc., can solve the problems of laser lighting related research and other problems that are not mentioned

Active Publication Date: 2020-10-30
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] There is also CsPbX in the prior art 3 Relevant research on nanocrystalline doped glass, taking Chinese patent application CN108424001 as an example, it provides a CsPbX 3 Nanocrystalline doped boron-containing glass, although it utilizes CsPbX 3 Nanocrystals dope the glass matrix, but the possible uses mentioned are general lighting, display, etc., and there is no mention of related research on laser lighting

Method used

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  • Luminescent glass for laser lighting and preparation method thereof
  • Luminescent glass for laser lighting and preparation method thereof
  • Luminescent glass for laser lighting and preparation method thereof

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Embodiment 1

[0033] The luminescent glass matrix mole percentage that is used for laser illumination of the present embodiment is composed of: B 2 o 3 : 43%, SiO 2 :30%, Na 2 O: 15%, SrO: 12% (i.e., every 100 mol of material in the glass matrix includes 43 mol of B 2 o 3 , 30mol SiO 2 , 15mol of Na 2 O, and 12mol of SrO). Take Na 2 O as an example, the raw material is generally Na 2 CO 3 or Na 2 SiO 3 Etc., other components are also similar, they are all introduced with various stable compounds, and these raw materials will be decomposed into oxides after high-temperature melting.

[0034] CbBr 3 The doping amount of nanocrystals is 0.1% of the amount of borosilicate glass substance, CsPbBr 3 Nanocrystals were obtained by incorporating CsCO 3 , PbBr 2 In situ formation of CsPbBr in the glass after introduction into the glass 3 Perovskite nanocrystals, CsCO 3 and PbBr 2 The molar ratio introduced as raw material was 1:3.3.

[0035] Weigh each component according to molar ...

Embodiment 2

[0037] The luminescent glass matrix mole percentage that is used for laser illumination of the present embodiment is composed of: B 2 o 3 :50%, SiO2 2 : 20%, Na 2 O: 10%, SrO: 20% (i.e., every 100 mol of material in the glass matrix includes 50 mol of B 2 o 3 , 20mol SiO 2 , 10mol of Na 2 O, and 20mol of SrO), CsPbI 3 The doping amount of nanocrystals is 5% of the amount of borosilicate glass substance, CsPbI 3 Nanocrystals were obtained by incorporating CsCO 3 , PbI 2 In situ formation of CsPbI in the glass after introduction into the glass 3 Perovskite nanocrystals, CsCO 3 and PbI 2 The molar ratio introduced as raw material was 1:4. Weigh each component according to the mole percentage, mix them evenly, put them in a crucible, keep them warm at 1100°C for 20 minutes, pour the glass melt into a mold and anneal at 350°C for 2 hours, the heat treatment system is 460°C, 480°C ℃, 500℃ heat treatment for 10h, its absorption and fluorescence spectra are as follows F...

Embodiment 3

[0039] The luminescent glass matrix mole percentage that is used for laser illumination of the present embodiment is composed of: B 2 o 3 :40%, SiO 2 :27%, Na 2 O: 15%, SrO: 18% (i.e., every 100 mol of material in the glass matrix includes 40 mol of B 2 o 3 , 27mol of SiO 2 , 15mol of Na 2 O, and 18mol of SrO), CsPbBr 3 The doping amount of nanocrystals is 0.3% of the amount of borosilicate glass substance, CsPbBr 3 Nanocrystals were obtained by incorporating CsCO 3 , PbBr 2 In situ formation of CsPbBr in the glass after introduction into the glass 3 Perovskite nanocrystals, CsCO 3 and PbBr 2 The molar ratio introduced as raw material was 1:3.3. Weigh each component according to the molar percentage, mix them evenly, put them in a crucible, and keep them warm at 1050°C for 30 minutes, pour the glass melt into the mold and anneal at 350°C for 2 hours, and the heat treatment system is heat treatment at 400°C for 20 hours , whose fluorescence spectrum is as Figure ...

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Abstract

The invention belongs to the field of laser lighting light emission materials and discloses light emission glass for laser lighting and a preparation method of the light emission glass. The light emission glass comprises a borosilicate glass substrate and a Pb-based perovskite nano crystal, wherein the Pb-based perovskite nano crystal is uniformly distributed into the borosilicate glass substrate;every 100mol by mass of the borosilicate glass substrate comprises 40-50mol of B2O3, 20-30mol of SiO2, 8-15mol of Na2O and 12-20mol of SrO; and the amount of the doped Pb-based perovskite nano crystal accounts for 0.1-5% of the mass of the borosilicate glass substrate. As detail constitution and component proportions of the glass substrate and the doped nano crystal, the overall process proceduredesign of the preparation method, temperatures, treatment time and the like of stages of key temperature treatment processes, and the like of the light emission material are improved, high efficiencyand high stability of the light emission glass for laser lighting can be simultaneously achieved, light emission saturation can be avoided, and options of laser sources can be widened.

Description

technical field [0001] The invention belongs to the field of luminescent materials for laser lighting, and more specifically relates to a luminescent glass for laser lighting and a preparation method thereof. Background technique [0002] Laser lighting has broad application prospects in the field of ultra-high brightness and ultra-high power lighting. It has been used in laser TVs, laser headlights for cars, and laser projectors. At present, the realization of laser lighting and display is mainly "laser light source + fluorescent material". Compared with the traditional blue LED chip, the laser diode chip as the excitation light source has no obvious drop in efficiency, especially when the power density of the blue laser diode is 25kW. cm -2 still maintain high efficiency. Using laser light sources to excite fluorescent materials to achieve high-power lighting, the development of highly efficient and reliable fluorescent materials is the key to the development of laser li...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C10/16C03C4/12C03B5/16C03B25/00C03B32/02
CPCC03B5/16C03B25/00C03B32/02C03C4/0071C03C10/16
Inventor 唐江夏梦玲罗家俊牛广达
Owner HUAZHONG UNIV OF SCI & TECH
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