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Borate luminescent glass and preparation method thereof

A technology of luminescent glass and borate, applied in the field of luminescent materials, can solve the problem that the phosphor powder cannot meet the research and practical application.

Active Publication Date: 2013-10-02
OCEANS KING LIGHTING SCI&TECH CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, with the continuous development of light source types and packaging technology, more and more phosphors cannot meet the requirements of research and practical applications. The continuous improvement of demand urgently requires the research of bulk materials and even transparent luminescent materials.

Method used

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  • Borate luminescent glass and preparation method thereof
  • Borate luminescent glass and preparation method thereof
  • Borate luminescent glass and preparation method thereof

Examples

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preparation example Construction

[0019] The preparation method of above-mentioned a kind of borate luminous glass, such as figure 1 As shown, the preparation process is as follows:

[0020] Step S1, according to the general chemical formula (50-x) In 2 o 3 -50B 2 o 3 -xRE 2 o 3 The molar number of each component in the formula, weigh the source compound of In, the source compound of B and the source compound of RE, mix and grind them into a mixed powder; wherein, the value of x is 0<x≤10, and RE is Eu ion or at least one of Tb ions;

[0021] Step S2, melting the mixed powder at a temperature of 1450-1600°C for 1-5 hours, taking it out and pouring it on a steel plate for rapid cooling to form glass;

[0022] Step S3, heat-treating the above-obtained glass at 500-900°C for 1-20 hours, and then cooling to prepare the borate luminescent glass.

[0023] In the above step S1, preferably, the source compound of In, the source compound of B and the source compound of RE are respectively In 2 o 3 、H 3 BO 3...

Embodiment 1

[0026] Weigh chemically pure In with an analytical balance 2 o 3 14.08g, H 3 BO 3 6.96g and Eu 2 o 3 1.98g, the raw materials were placed in a mortar and mixed thoroughly, and the mixed raw materials were poured into a corundum crucible. The raw material is melted in a high-temperature furnace at 1550°C for 3 hours, then taken out and poured onto a steel plate for rapid cooling to obtain a composition of 45In 2 o 3 -50B 2 o 3 -5Eu 2 o 3 borate glass. The obtained glass was kept at 500° C. for 5 h and then cooled in a furnace to obtain Eu ion-doped borate luminescent glass, which produced strong red emission under excitation of cathode ray and blue light.

[0027] figure 2 It is the photoluminescence spectrum of the luminescent glass obtained in Example 1. In the figure, Ex1 is the excitation spectrum with the excitation peak wavelength at 465 nm, and Em1 is the emission spectrum with the emission peak wavelength at 612 nm.

[0028] image 3 It is the cathode ray...

Embodiment 2

[0030] Weigh chemically pure In with an analytical balance 2 o 3 14.03g, H 3 BO 3 6.94g and Tb 4 o 7 2.09g, the raw materials were placed in a mortar and mixed thoroughly, and the mixed raw materials were poured into a corundum crucible. The raw material is melted in a high-temperature furnace at 1550°C for 5 hours, then taken out and poured onto a steel plate for rapid cooling to obtain a composition of 45In 2 o 3 -50B 2 o 3 -5Tb 2 o 3 borate glass. The obtained glass was kept at 700° C. for 5 hours and then cooled in a furnace to obtain a borate luminescent glass doped with Tb ions. The luminescent glass produced strong green light emission under the excitation of cathode ray and blue light.

[0031] Figure 4 It is the photoluminescence spectrum of the luminescent glass obtained in Example 2, Ex2 in the figure is the excitation spectrum, the excitation peak wavelength position is located at 485nm, Em2 is the emission spectrum, and the emission peak wavelength po...

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Abstract

The invention belongs to the field of luminescent materials, and discloses borate luminescent glass and a preparation method thereof. The borate luminescent glass has a general chemical formula of (50-x)In[2]O[3]-50B[2]O[3]-xRE[2]O[3], wherein 0<x<=10, RE is at least one of Eu ion or Tb ion, and preferably 2<x<=8. According to the invention, rare earth ion doped borate luminescent glass is prepared from InBO3:Eu and InBO3:Tb used as basis by a glass preparation process to obtain the luminescent glass with the component of (50-x)In[2]O[3]-50B[2]O[3]-xRE[2]O[3]. The rare earth ion doped borate luminescent glass can generate stronger visible light under the excitation of cathode ray, and can also generate stronger visible light under the excitation of ultraviolet light, purple light and blue light.

Description

technical field [0001] The invention relates to the field of luminescent materials, in particular to borate luminescent glass. The invention also relates to a preparation method of borate luminescent glass. Background technique [0002] The development of lighting technology has brought about the rapid development of various systems of luminescent materials, among which the development and application of borate system luminescent materials is of great significance. The borate system luminescent material is characterized by simple synthesis, low calcination temperature, and the ability to obtain a high-brightness luminescent material. Due to the structural diversity of borate ions, many studies have been carried out on the structure and spectral properties of rare earth doped borate materials, and some important results have been achieved, such as (Ce, Gd, Tb)MgB 5 o 10 It is a practical high-efficiency rare earth three-color phosphor, (Y, Gd)BO 3 :Eu is also mostly used ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/12C03C3/15
Inventor 周明杰乔延波马文波
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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