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Silver-containing nanocrystal blue light enhanced tellurite glass and preparation method thereof

A tellurate glass, silver nanotechnology, applied in the field of up-conversion luminescent materials, can solve the problems of limited practical application, limited up-conversion luminescence performance, poor stability of sulfide glass, etc.

Inactive Publication Date: 2013-10-09
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stability of sulfide glass is poor, and its practical application is limited.
Although phosphate glass is an optical glass matrix with good optical quality, its high phonon energy limits the improvement of upconversion luminescence performance

Method used

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  • Silver-containing nanocrystal blue light enhanced tellurite glass and preparation method thereof
  • Silver-containing nanocrystal blue light enhanced tellurite glass and preparation method thereof
  • Silver-containing nanocrystal blue light enhanced tellurite glass and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] (1) The composition of the glass is: TeO 2 : 80mol%, WO 3 : 5mol%, ZnO: 5mol%, ZnF 2 : 5mol%, ZnCl 2 : 5mol%, at the same time doped: Tm2 o 3 : 0.02mol%, Yb 2 o 3 : 0.1mol%, AgCl: 0.3wt%; Accurately calculate, weigh, mix according to the formula, and dry at 120°C for 10h;

[0036] (2) Put the above-mentioned batch materials into a gold crucible with a cover, and place it in a high-temperature furnace for melting, the atmosphere is air, the melting temperature is 760°C, and the melting time is 20 minutes;

[0037] (3) Pour the molten glass onto a copper plate or stainless steel mold at 250°C for molding, then anneal at 260°C for 2 hours to eliminate internal stress, and then cool with the furnace;

[0038] (4) The obtained glass is heat-treated at 310°C for 15 minutes and then cooled in the furnace.

[0039] The thermal stability parameter ΔT(°C) of the glass prepared in this example reaches 102°C, the glass has good glass-forming properties, and the fluorescence ...

Embodiment 2

[0041] (1) The composition of the glass is: TeO 2 : 75mol%, WO 3 : 8mol%, La 2 o 3 : 2%, ZnO: 5mol%, ZnF 2 : 5mol%, ZnCl 2 : 5mol%, at the same time doped: Tm 2 o 3 : 0.02mol%, Yb 2 o 3 : 0.1mol%, AgCl: 0.5wt%, AgF: 0.1wt%. Accurately calculate, weigh and mix according to the formula, and dry at 120°C for 8 hours;

[0042] (2) Put the above-mentioned batch materials into a covered gold crucible, and place it in a high-temperature furnace for melting, the atmosphere is air, the melting temperature is 780°C, and the melting time is 18 minutes;

[0043] (3) Pour the molten glass onto a copper plate or stainless steel mold at 260°C for molding, then anneal at 260°C for 2 hours to eliminate internal stress, and then cool with the furnace;

[0044] (4) The obtained glass is heat-treated at 330°C for 30 minutes and then cooled in the furnace. The thermal stability parameter ΔT(°C) of the prepared glass reaches 105°C, the glass has good glass-forming performance, and the fl...

Embodiment 3

[0046] (1) The composition of the glass is: TeO 2 : 70mol%, WO 3 : 8mol%, GeO 2 : 2mol%, ZnO: 5mol%, ZnF 2 : 10mol%, ZnCl 2 : 5mol%, at the same time doped: Tm 2 o 3 : 0.06mol%, Yb 2 o 3 : 0.3mol%, AgCl: 0.5wt%. Accurately calculate, weigh and mix according to the formula, and dry at 130°C for 8 hours;

[0047] (2) Put the above-mentioned batch materials into a gold crucible with a cover, and place it in a high-temperature furnace for melting, the atmosphere is air, the melting temperature is 800°C, and the melting time is 18 minutes;

[0048] (3) Pour the molten glass onto a copper plate or stainless steel mold at 270°C for molding, then anneal at 260°C for 2 hours to eliminate internal stress, and then cool with the furnace;

[0049] (4) The obtained glass is heat-treated at 330°C for 30 minutes and then cooled in the furnace.

[0050] The thermal stability parameter ΔT(°C) of the glass prepared in this example reaches 110°C, the glass has good glass-forming proper...

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Abstract

The invention belongs to the technical field of conversion luminescence materials and relates to a silver-containing nanocrystal blue light enhanced tellurite glass and a preparation method of the tellurite glass. The glass comprises glass phase components, externally doped rear earth oxides and silver salts and is prepared by virtue of melting and thermal treatment, wherein the glass phase components include the following substances in percentages by mol: 60-80% of TeO2, 5-10% of WO3, 0-5% of La2O3, 0-5% of GeO2, 5-10% of ZnO, and 5-20% of ZnF2+ZnCl2; the externally doped rear earth oxides include the following ingredients in percentages by mol based on the molar contents of the above glass phase components: 0.02-0.1% of Tm2O3 and 0.1-1% of Yb2O3; and the silver salts include the following ingredients in percentages by mass based on the mass contents of the above glass phase components: 0.3-0.7% of AgCl+AgF. The silver-containing nanocrystal blue light enhanced tellurite glass disclosed by the invention can be widely applied to the manufacturing of a blue light emission laser device.

Description

technical field [0001] The invention belongs to the technical field of up-conversion luminescent materials, and relates to a tellurite glass containing silver nanocrystals for up-conversion blue light enhancement and a preparation method thereof. Background technique [0002] Blu-ray light source is a short-wavelength light source with high efficiency, low price and high performance, so it is widely used in information processing, high-density data storage, optical fiber communication, laser technology and ocean detection and other fields. As we all know, Tm 3+ Is an effective blue light luminescent ion. However, as in the glass matrix Tm 3+ If the ion concentration is too low, the fluorescence emission cross section will become smaller, which will affect the increase of fluorescence intensity; while the Tm 3+ Excessive ion concentration will also cause concentration quenching, which will also lead to a decrease in fluorescence intensity. Therefore, in previous studies, ...

Claims

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Application Information

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IPC IPC(8): C03C4/12C03C3/23C03C3/253
Inventor 林健张文俊孙光耀贾玉洁
Owner TONGJI UNIV
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