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Preparation method of tellurium borate luminescent glass doped with rare earth ions Eu<3+>

A luminescent glass, tellurium borate technology, applied in glass manufacturing equipment, glass molding, manufacturing tools, etc., can solve the problems of restricting practical application and development, restricting application, and high color temperature, reducing non-radiative transitions and improving transparency. The effect of performance and simple preparation process

Active Publication Date: 2020-12-25
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] At present, the publication number is CN 102286287A Chinese patent published Eu 3+ ion-doped NaGaF 4 Nanorod red luminescent materials have severe light scattering, which limits their practical application and development
Eu 3+ The luminous efficiencies of ion-doped ZnAlBiB and BaLFB are both less than 70% (Journal of Luminescence, 2014, 156: 80-86; Journal of Luminescence, 2013, 139: 6-15), and the Chinese patent publication No. 108545931A published a high-temperature Eu prepared by melting process 3+ The color temperature of ion-doped tellurite fluorescent glass is as high as 7748K (>4000K), which limits its application in the field of warm color lighting

Method used

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  • Preparation method of tellurium borate luminescent glass doped with rare earth ions Eu&lt;3+&gt;
  • Preparation method of tellurium borate luminescent glass doped with rare earth ions Eu&lt;3+&gt;

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Effect test

Embodiment 1

[0017] Doped with rare earth ions Eu 3+ The preparation method of borate tellurite luminescent glass comprises the following steps:

[0018] (1) Raw material counterweight, weigh glass raw material and rare earth oxide respectively, glass raw material is made of TeO 2 、H 3 BO 3 , CaF 2 、TiO 2 、K 2 CO 3 Composition, each mass percentage is respectively: TeO 2 10%, H 3 BO 3 44.9%, CaF 2 20%, TiO 2 5%, K 2 CO 3 20%, the rare earth oxide is Eu 2 o 3 , the mass percentage is 0.1%:

[0019] (2) Prepare a glass premix, put glass raw materials and rare earth oxides with a good weight ratio into a mortar, grind and mix to obtain a glass premix;

[0020] (3) Prepare a completely molten glass frit, pour the above-mentioned glass premix into a pre-cleaned alumina crucible, place it in a muffle furnace, heat it up to 1200°C at a rate of 10°C / min, and then keep it warm for 1 hour. Obtain completely molten glass frit;

[0021] (4) To prepare luminescent glass, pour the abov...

Embodiment 2

[0023] Doped with rare earth ions Eu 3+ The preparation method of borate tellurite luminescent glass comprises the following steps:

[0024] (1) Raw material counterweight, weigh glass raw material and rare earth oxide respectively, glass raw material is made of TeO 2 、H 3 BO 3 , CaF 2 、TiO 2 、K 2 CO 3 Composition, each mass percentage is respectively: TeO 2 10%, H 3 BO 3 44.7%, CaF 2 20%, TiO 2 5%, K 2 CO 3 20%; rare earth oxide is Eu 2 o 3 , the mass percentage is 0.3%;

[0025] (2) Prepare a glass premix, put glass raw materials and rare earth oxides with a good weight ratio into a mortar, grind and mix to obtain a glass premix;

[0026] (3) Prepare a completely molten glass frit, pour the above-mentioned glass premix into a pre-cleaned alumina crucible, place it in a muffle furnace, heat it up to 1200°C at a rate of 10°C / min, and then keep it warm for 1.5 hours. Obtain completely molten glass frit;

[0027] (4) To prepare luminescent glass, pour the above...

Embodiment 3

[0029] Doped with rare earth ions Eu 3+ The preparation method of borate tellurite luminescent glass comprises the following steps:

[0030] (1) Raw material counterweight, weigh glass raw material and rare earth oxide respectively, glass raw material is made of TeO 2 、H 3 BO 3 , CaF 2 、TiO 2 、K 2 CO 3 Composition, each mass percentage is respectively: TeO 2 10%, H 3 BO 344.5%, CaF 2 20%, TiO 2 5%, K 2 CO 3 20%; rare earth oxide is Eu 2 o 3 , the mass percentage is 0.5%;

[0031] (2) Prepare a glass premix, put glass raw materials and rare earth oxides with a good weight ratio into a mortar, grind and mix to obtain a glass premix;

[0032] (3) Prepare a completely molten glass frit, pour the above-mentioned glass premix into a pre-cleaned alumina crucible, place it in a muffle furnace, heat it up to 1200°C at a rate of 10°C / min, and then keep it warm for 2 hours. Obtain completely molten glass frit;

[0033] (4) To prepare luminous glass, pour the above-menti...

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Abstract

The invention belongs to the technical field of luminescent material preparation, and relates to a preparation method of tellurium borate luminescent glass doped with rare earth ions Eu<3+>, which comprises the following steps: weighing raw materials, preparing a glass premix, preparing a completely molten frit, and preparing the luminescent glass, wherein the glass raw materials comprise the following components in percentage by mass: 5-20% of TeO2, 5-50% of H3BO3, 10-30% of CaF2, 1-15% of TiO2 and 22-25% of K2CO3, the rare earth oxide is Eu2O3, and the mass percent is 0.1-3%, according to the rare earth ion Eu<3+> doped tellurium borate luminescent glass, tellurium borate is used as a glass matrix, rare earth ions are used as a luminescent agent, and the luminescent efficiency, color temperature and color purity of the glass are improved by adjusting the variety and concentration of glass raw materials. The tellurium borate luminescent glass prepared by adopting the technical schemehas excellent properties such as luminous efficiency, color temperature and color purity, can be applied to optical devices, and is simple in preparation process and low in cost.

Description

technical field [0001] The invention belongs to the technical field of preparation of luminescent materials, and in particular relates to a rare earth ion-doped Eu 3+ The preparation method of borate tellurite luminescent glass. Background technique [0002] Luminescent glass is a kind of material that causes energy level defects through doping, and then produces luminescent phenomenon. It can be mainly used in the fields of phosphor powder, electroluminescence, display, thin film and microcrystal. With the continuous development of optical communication systems and light-emitting devices, the requirements for the absorption peak, fluorescence lifetime and luminous efficiency of luminescent materials are increasing. Among rare earth ions, Eu 3+ Ionic 5 D. 0 → 7 f J (J=0, 1, 2, 3, 4, 5, 6) Energy level transitions can produce visible light in the 560-700nm band (located in the red region of the infrared spectrum), and the doped luminescent material has a wide absorption...

Claims

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Application Information

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IPC IPC(8): C03C3/23C03C4/12C03B19/02
CPCC03C3/23C03C4/12C03B19/02
Inventor 刘俊成卡鲁帕亚·玛丽塞瓦姆王顺恒
Owner TIANJIN POLYTECHNIC UNIV