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Eu-doped high-silica glass and preparation method thereof

A high-silica glass and high-silica technology, which is applied in the field of Eu-doped high-silica glass and its preparation, can solve the problems of low rare earth ion doping concentration, limited application of quartz glass, and unfavorable device miniaturization, etc. Improve luminous efficiency, avoid concentration quenching effect, and facilitate absorption effect

Inactive Publication Date: 2010-08-11
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the doping concentration of rare earth ions in quartz glass is not high, and spontaneous clusters are prone to produce concentration quenching effects, which is not conducive to the miniaturization of devices, and greatly limits the application of quartz glass.

Method used

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  • Eu-doped high-silica glass and preparation method thereof
  • Eu-doped high-silica glass and preparation method thereof
  • Eu-doped high-silica glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1, use analytical balance to take by weighing 0.0383g of analytically pure yttrium nitrate hexahydrate, 0.0163g of vanadyl sulfate and 0.0045g of analytically pure europium nitrate hexahydrate to be dissolved in 10ml of distilled water, and be formulated to contain 0.01mol / L Y 3+ , 0.01mol / L vanadium ion and 0.001mol / L Eu 3+ soaking solution. Soak the high-silica nano-microporous glass in the soaking solution for 4 hours, take it out, let it dry at room temperature, and then place it in a high-temperature furnace. , then at a speed of 15 °C / min to 900 °C, and then at a speed of 5 °C / min to 1300 °C, heat-preserve and sinter the soaked microporous glass at 1300 °C for 2 hours, and cool the glass to room temperature with the furnace and take it out. After cutting and polishing, the Eu-doped luminescent high-silica glass was prepared.

Embodiment 2

[0038] Example 2, use an analytical balance to weigh 0.0352g of analytically pure europium oxide dissolved in 1mol / L dilute hydrochloric acid, and prepare 10ml containing 0.02mol / L Eu 3+ solution. Soak the high-silica nano-microporous glass in the soaking solution for 30 minutes, take it out, let it dry at room temperature, and then place it in a high-temperature furnace. , and then at a speed of 15 °C / min to 900 °C, and then at a speed of 5 °C / min to 1150 °C, heat-preserve and sinter the soaked microporous glass at 1150 °C for 3 hours, and cool the glass to room temperature with the furnace and take it out. After cutting and polishing, the prepared Eu-doped high-silica glass. The glass can simultaneously generate blue and red light when excited by ultraviolet light. figure 1 The luminescence spectrum of the glass prepared in Example 2 under the excitation of excitation light with a wavelength of 290 nm. Figure 5 The luminous chromaticity of the glass obtained in this embo...

Embodiment 3

[0039] Example 3, use an analytical balance to weigh 0.0566g of analytically pure yttrium oxide, 0.82g of vanadyl sulfate and 0.0352g of analytically pure europium oxide dissolved in 1mol / L dilute nitric acid, and prepare 10ml containing 0.05mol / L Y 3+ , 0.05mol / L vanadium ion and 0.02mol / L Eu 3+ soaking solution. Soak the high-silica nano-microporous glass in the soaking solution for 3 hours, take it out, let it dry at room temperature, and then place it in a high-temperature furnace. , then at a rate of 15 °C / min to 900 °C, and then at a rate of 5 °C / min to 1200 °C, heat-preserve and sinter the soaked microporous glass at 1200 °C for 3 hours, and cool the glass to room temperature with the furnace and take it out. After cutting and polishing, the prepared Eu-doped luminescent high-silica glass. figure 2 The luminescence spectrum of the glass prepared in Example 3 under the excitation of excitation light with a wavelength of 290 nm. Figure 5 The luminous chromaticity of ...

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Abstract

The invention discloses Eu-doped high-silica glass and a preparation method thereof. The Eu-doped high-silica glass is high-silica glass distributed with at least one of Eu3+ and Eu2+. The preparation method comprises the following steps of: preparing a soaking solution containing at least one of Y3+ and Gd3#, and vanadium ions and the Eu3+, a soaking solution containing at least one of the Y3+ and the Gd3#, and the Eu3 + or a soaking solution containing the Eu3+, and then placing high-silica nano microporous glass in the soaking solution for soaking at least 10 minutes; gradually raising the temperature of the soaked high-silica nano microporous glass to 1100-1300 DEG C for sintering 1-5 hours to prepare the Eu-doped high-silica glass. The glass has the advantages of good stability, thermal shock resistance, high excited transmissivity and wide range of application, and can generate blue light, red light or blue and light mixed light for emission under the excitation of ultraviolet light. The preparation method has the advantages of simple process, convenient and reliable operation and stable quality of a product.

Description

technical field [0001] The invention belongs to the technical field of illumination display and optoelectronics, and relates to a luminescent nano-crystal glass and a preparation method thereof, in particular to an Eu-doped high-silica glass and a preparation method thereof. Background technique [0002] With the continuous application of rare earth ion-doped luminescent materials in the fields of lighting, display, laser and light amplification, and information, it is found that rare earth ion-doped nano-luminescent particles can produce more excellent luminescent properties in composite materials, but traditional It is difficult to prepare nano-sized luminescent particles by the solid-state sintering method. Although some new preparation methods at present, such as hydrothermal synthesis method, sol-gel method, etc., can obtain luminescent particles with better dispersion. However, with the development of high-brightness lighting equipment, high-power laser and display te...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/22C03C11/00
Inventor 周明杰乔延波马文波陈丹平
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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