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Special optical glass with pure red light luminescence characteristic and preparation method and application thereof

A technology of optical glass and luminescent properties, which is applied in glass manufacturing equipment, glass furnace equipment, phototherapy, etc., can solve the problems of increasing the difficulty of preparation and increasing scattering loss, and achieve the avoidance of scattering loss, lower melting temperature, and application advantages obvious effect

Active Publication Date: 2021-07-13
TAISHAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the formation of nanocrystals in the glass, it not only increases the difficulty of preparation, but also inevitably increases the scattering loss.

Method used

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  • Special optical glass with pure red light luminescence characteristic and preparation method and application thereof
  • Special optical glass with pure red light luminescence characteristic and preparation method and application thereof
  • Special optical glass with pure red light luminescence characteristic and preparation method and application thereof

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preparation example Construction

[0051] The preparation method of the special optical glass with pure red light emission characteristics of the present invention comprises the following steps:

[0052] (1) With high purity (99.99%) silicon dioxide (SiO 2 ), zinc fluoride (ZnF 2 ), zinc chloride (ZnCl 2 ), manganese fluoride (MnF 2 ), lithium fluoride (LiF), silicon nitride (Si 3 N 4 ) and high-purity (99.99%) rare earth fluoride as raw materials to prepare glass mixture according to stoichiometric ratio;

[0053] (2) place the raw material weighed according to the calculation in the agate jar, uniformly mix it in the ball mill for 30-120min, and transfer the uniformly mixed raw material into the quartz crucible;

[0054] (3) Put the well-mixed raw materials into a high-temperature furnace, and melt them in an air atmosphere. The copper plate is quenched to form the matrix glass.

[0055] (4) The prepared glass is placed in a precision annealing furnace and annealed at 350-450° C. for 2-6 hours to elimi...

Embodiment 1

[0063] Example 1: 50SiO 2 -15ZnF 2 -10ZnCl 2 -15LiF-xMnF 2 -1Si 3 N 4 -1YbF 3 -0.2ErF 3 Preparation of (x=0-15, mol.%) Fluorosilicate Multicomponent Glass

[0064] In the glass composition of this embodiment, SiO 2 , ZnF 2 , ZnCl 2 , LiF, MnF 2 As a glass matrix, the value before each compound represents the molar ratio (mol.%); Si 3 N 4 As a doping reducing agent, YbF 3 and ErF 3 is the extra-doped rare earth ion, and the preceding value represents the mole percent incorporated relative to the entire glass matrix.

[0065] Specific preparation method: Weigh SiO according to the measured quality respectively. 2 , ZnF 2 , ZnCl 2 , LiF, MnF 2, Si 3 N 4 and YbF 3 and ErF 3 , put the above raw materials in an agate jar, and use a ball mill to stir for 120 min to make it uniform. Transfer the well-mixed raw materials to a quartz crucible. The temperature of the high-temperature furnace was raised to 1300°C, and then the covered quartz crucible containing the...

Embodiment 2

[0067] Example 2: 45SiO 2 -15ZnF 2 -10ZnCl 2 -15LiF-xMnF 2 -1Si 3 N 4 -1YbF 3 -0.2HoF 3 Preparation of (x=0, 10, 15, mol.%) Fluorosilicate Multicomponent Glass

[0068] In the glass composition of this embodiment, SiO 2 , ZnF 2 , ZnCl 2 , LiF, MnF 2 As a glass matrix, the value before each compound represents the molar ratio (mol.%); Si 3 N 4 As a doping reducing agent, YbF 3 and HoF 3 is the extra-doped rare earth ion, and the preceding value represents the mole percent incorporated relative to the entire glass matrix.

[0069] Specific preparation method: Weigh SiO according to the measured quality respectively. 2 , ZnF 2 , ZnCl 2 , LiF, MnF 2 , Si3N4 and YbF 3 and HoF 3 , put the above raw materials in an agate jar, and use a ball mill to stir for 60 minutes to make it uniform. Transfer the well-mixed raw materials to a quartz crucible. The temperature of the high-temperature furnace was raised to 1250°C, and then the covered quartz crucible containing...

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Abstract

The invention discloses special optical glass with a pure red light luminescence characteristic and a preparation method and application thereof, and belongs to the technical field of special optical glass materials. The special optical glass comprises a glass matrix, and a reducing agent and rare earth fluoride which are externally doped on the basis of the glass matrix. The chemical composition of the glass matrix is as follows: aSiO2-bZnF2-cZnCl2-dLiF-eMnF2, wherein in the formula, a, b, c, d and e are molar ratio numbers, and the values of a, b, c, d and e are as follows: a is 40-50 mol.%, b is 15-20 mol.%, c is 10-15 mol.%, d is 15 mol.%, and e is 0-15 mol.%; and the doping amount of the reducing agent is 0.05-3.0 mol.%, and the doping amount of the rare earth fluoride is 0.1-2.0 mol.%. According to the invention, the performance of the glass is regulated and controlled from different dimensions by utilizing the characteristic of phase splitting of the fluosilicate glass, and finally the special optical glass with good thermodynamic stability and high luminous efficiency is obtained. The special optical glass realizes rare earth ion pure red light emission, and can be applied to the fields of glass / optical fiber display, optical fiber temperature sensing, photodynamic therapy and the like.

Description

technical field [0001] The invention relates to the technical field of special optical glass materials, in particular to a special optical glass with pure red light emission characteristics and a preparation method and application thereof. Background technique [0002] Rare-earth ion up-conversion luminescence refers to the phenomenon that when a long-wavelength excitation light is used to pump a rare-earth ion-doped luminescent material, light with a wavelength shorter than that of the excitation light is emitted. However, the energy levels of rare earth ions are very abundant, and in the process of upconversion luminescence pumped by the excitation light source, light at multiple wavelength positions can usually be emitted at the same time. Therefore, it is of great significance to control the up-conversion emission band of rare earth ion-doped luminescent materials for different application fields, especially in the red (600-700nm) and near-infrared (700-1100nm) spectral ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C3/112C03C4/12C03C6/06C03C1/00C03B5/16C03B25/00A61N5/06G01K11/32
CPCC03C3/112C03C4/12C03C1/00C03B5/16C03B25/00A61N5/062G01K11/32
Inventor 肖静高志刚陈君张连
Owner TAISHAN UNIV