Germanate glass luminescent film and preparation method

A germanate and thin film technology, which is applied in the field of germanate luminescent glass thin film and its preparation, can solve the problems of unfavorable production of high-performance luminescent materials, poor composition uniformity, and no requirement for material form.

Inactive Publication Date: 2010-12-08
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] In the above two reports, the materials were prepared by high-temperature melting method. The disadvantages of this method are high energy consumption and poor composition uniformity, which is not conducive to the production of high-performance luminescent materials.
In addition, the material synthesized in the report is only a glassy substance, and there is no requirement for the shape of the material

Method used

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  • Germanate glass luminescent film and preparation method

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example 1

[0012] The molar percentage composition of the glass film is: 30% of zinc oxide; 20% of lead oxide; 40% of germanium dioxide; 4.9% of silicon oxide, 0.1% of manganese oxide and 5% of europium trioxide. Dissolve zinc oxide, lead oxide, germanium dioxide, manganese oxide, and europium trioxide in nitric acid to make a 0.5mol / L nitrate solution, and dissolve ethyl orthosilicate in anhydrous Ethanol, the Geli solution is mixed according to the proportion, and a certain amount of citric acid (according to citric acid: metal ion = 2: 1) is added as a chelating agent. Mix the prepared mixed solution with a magnetic stirrer, adjust the pH value to 1, make a sol and pour it into an atomizing container for use. Quartz glass is used as the substrate in the preparation. After being kept in a heating furnace at 500°C for 1 hour, the sol is pressurized by a pressure pump and enters the spray gun. After being atomized by high-pressure gas at the nozzle of the spray gun, it deposits on the hi...

example 2

[0014] The molar percentage composition of the glass film is: 25% of zinc oxide; 20% of lead oxide; 40% of germanium dioxide; 9.9% of silicon oxide, 0.1% of manganese oxide and 5% of europium trioxide. Dissolve zinc oxide, lead oxide, germanium dioxide, manganese oxide, and europium trioxide in nitric acid to make a 1mol / L nitrate solution, and dissolve ethyl orthosilicate in absolute ethanol at a volume ratio of 1:1 , mix the various solutions according to the proportion, and add a certain amount of citric acid (according to citric acid: metal ion = 2: 1) as a chelating agent. Mix the prepared mixed solution with a magnetic stirrer, adjust the pH value to 1, make a sol and pour it into an atomizing container for use. Quartz glass is used as the substrate in the preparation. After being kept in a heating furnace at 500°C for 1 hour, the sol is pressurized by a pressure pump and enters the spray gun. After being atomized by high-pressure gas at the nozzle of the spray gun, it d...

example 3

[0016] The molar percentage composition of the glass film is: 40% of zinc oxide; 10% of lead oxide; 40% of germanium dioxide; 14.9% of silicon oxide, 0.1% of manganese oxide and 5% of europium trioxide. Dissolve zinc oxide, lead oxide, germanium dioxide, manganese oxide, and europium trioxide in nitric acid to make a 0.5mol / L nitric acid solution, and dissolve ethyl orthosilicate in absolute ethanol at a volume ratio of 1:1 , mix the various solutions according to the proportion, and add a certain amount of citric acid (according to citric acid: metal ion = 2: 1) as a chelating agent. Mix the prepared mixed solution with a magnetic stirrer, adjust the pH value to 1, make a sol and pour it into an atomizing container for use. Quartz glass is used as the substrate in the preparation. After being kept in a heating furnace at 500°C for 1 hour, the sol is pressurized by a pressure pump and enters the spray gun. After being atomized by high-pressure gas at the nozzle of the spray gu...

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Abstract

The invention discloses a preparation method of a germanate glass luminescent film. The method comprises the following steps: selecting zinc oxide, lead oxide, germanium oxide and silicon dioxide as glass substrate and selecting manganese oxide and europium sesquioxide as luminescent agents; dissolving tetraethoxysilane in absolute ethyl alcohol and dissolving other oxides in a nitric acid solution to prepare a 0.5-1.5mol / L nitrate solution; mixing the solution, stirring and adding a certain amount of citric acid as a chelating agent; regulating pH to 0.5-1 to prepare sol; atomizing the prepared sol at a nozzle of a spray gun by high pressure gas to allow deposition on a high-temperature quartz glass substrate to form uniform film; keeping the formed film at constant temperature of 500 DECC for 2-5h; meanwhile, charging a gas mixture of nitrogen and hydrogen into a heating furnace as reducing atmosphere to finally obtain colorless transparent glass film which can emit bright red fluorescence in the presence of 254nm ultraviolet irradiation.

Description

technical field [0001] The invention relates to a germanate luminescent glass film and a preparation method thereof, belonging to the field of inorganic non-metallic materials. Background technique [0002] With the continuous improvement of the level of science and technology, more and more glass materials have been developed and applied in optoelectronic technology fields such as solid-state laser, optical fiber communication, and up-conversion luminescence. Due to the advantages of wide infrared transmission band and high transmittance, germanate glass has been widely used in low-loss optical fiber, infrared monitoring and infrared tracking and other fields. At the same time, germanate glass also has the characteristics of good chemical stability, excellent thermal shock resistance, and easy doping of photoactive ions, so it is also an excellent luminescent host material. However, there are few studies on germanate glass as a host for luminescent ions. [0003] The pate...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C03C4/12C03C3/253C03C3/062C03C3/07C03C17/245
Inventor 李锋锋沈毅张明熹张林
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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