Silica glass member for wavelength conversion, and production method therefor

A technology of quartz glass and wavelength conversion, which is applied to chemical instruments and methods, optical components, electrical components, etc., and can solve problems such as functional degradation, surface part strength degradation, and tiny particles scattering

Inactive Publication Date: 2015-09-09
SHIN ETABU QUARTZ PRODS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, when LED lighting is performed using a resin that seals the phosphor described above, water vapor permeability is high and chemical resistance is low, so it is not suitable for such an application.
[0015] In each of the conventional examples, there is a problem that when the wavelength of the excitation light used includes ultraviolet rays of 400 nm or less, the ultraviolet rays pass through the wavelength conversion material and are irradiated to the object, causing various adverse effects such as deterioration and chemical reaction.
[0016] In addition, there is a problem that dust, metal element particles, organic fine dust, etc. in the atmosphere adhere to and stick to the surface of each wavelength conversion material with continuous use, and the converted light is reflected, scattered, and absorbed, and does not It is emitted from the wavelength conversion material, the strength of the surface portion deteriorates, and the function of the fine particles is scattered from the surface, etc., and the function is significantly reduced.

Method used

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  • Silica glass member for wavelength conversion, and production method therefor
  • Silica glass member for wavelength conversion, and production method therefor
  • Silica glass member for wavelength conversion, and production method therefor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0221] In a 500ml zirconia container, put 5g spherical deep ultraviolet light excitation phosphor (manufactured by U-VIX Co., Ltd., trade name: QKL65E / S-C1, average particle size 30μm (measurement device: microtrac MT3000 manufactured by Nikkiso Co., Ltd.) ), 10g 2-methoxyethanol (viscosity at 20℃ is 1.71mPa·s, at 20℃ vapor pressure is 0.83kP), 30g zirconia ball (diameter 5mm), 15g small zirconia ball (diameter 0.3mm), Six sets were performed at 250 rpm for 30 minutes, and they were mixed with a planetary ball mill to obtain a phosphor dispersion. After that, the 2-methoxyethanol was evaporated in the air in a dry oven at 100°C for 5 hours to make the pulverized phosphor-1 (lumps, bulk density 0.6g / cm) with a particle size of 1-10μm 3 , The average particle size is 5μm, the minimum particle size is 1μm, and the maximum particle size is 10μm) by drying.

[0222] Next, in TRYMAILE ANN120 (catalyst-free polysilazane 20% by mass dibutyl ether solution, manufactured by Sanwa Chemical ...

Embodiment 2

[0227] Except for using the following crushed phosphor-2 instead of the crushed phosphor-1 used in Example 1, the quartz glass member for wavelength conversion of Example 2 was produced in the same manner (the film thickness is 15μm, the light transmittance near 470nm is 4% , The residual NH group concentration is below 100ppm).

[0228] In the adjustment of the above-mentioned pulverized phosphor-1, a near-ultraviolet light excitation phosphor (trade name: UVW365, manufactured by U-VIX Co., Ltd.) was used instead of the ultraviolet light excitation phosphor (trade name: QKL65E / S- manufactured by U-VIX Co., Ltd.). C1) Except for this, crushed phosphor-2 (average particle diameter 10 μm) was obtained in the same manner.

Embodiment 3

[0230] Except that a natural quartz glass substrate was used instead of the synthetic quartz glass substrate-1 used in Example 1, the quartz glass member for wavelength conversion of Example 3 was produced in the same manner as in Example 1.

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Abstract

The invention provides a silica glass member for wavelength conversion for which environmental tolerance, heat resistance, durability and color rendering properties are high, which can be produced using a low-heat process, and which can efficiently convert wavelengths; and a production method therefor. The silica glass member for wavelength conversion is formed by a silica glass substrate and a silica glass surface layer film formed on the surface of the substrate. The silica glass surface layer film is obtained by coating the surface of the silica glass substrate with a polysilazane-containing solution which contains phosphor particles the average particle diameter of which is 0.1 mu m-20 mu m and spherical silica fine particles which are hydrophobic and have an average particle size of 1nm-100nm, drying the coated substrate in the air, and carrying out heating of the same in a water-vapor atmosphere. In the polysilazane-containing solution, the ratio of phosphor particles to the total amount of the polysilazane and phosphor particles is 10:3-7 parts by mass, and the NH group concentration of the silica glass surface layer film is no more than 1000ppm.

Description

Technical field [0001] The present invention relates to a quartz glass member for wavelength conversion for absorbing part of light emission and performing wavelength conversion to emit light, and a method of manufacturing the same. In addition, the present invention relates to a quartz glass member for wavelength conversion that absorbs a part of light emission and performs wavelength conversion to emit light, prevents adhesion of organic substances on the surface of the member, and imparts a function of shielding ultraviolet rays, and a method of manufacturing the same. Background technique [0002] The wavelength conversion material performs wavelength conversion on light of a certain wavelength, and according to the use purpose, extracts light of a longer wavelength than that wavelength to improve efficiency. [0003] In recent years, in general solar cells, the silicon crystals are directly irradiated with sunlight to cause excitation to generate electric energy. However, the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C03C17/02C03C17/34C09K11/00C09K11/02C09K11/08
CPCC03C17/3411C03C2217/45C03C2217/475C03C2217/48C03C17/007H01L31/055H01L33/501H01L33/505Y02E10/52Y10T428/259G02B5/0294G02B5/0247G02B5/0268C03C17/02C03C17/34
Inventor 森龙也佐藤龙弘藤木朗
Owner SHIN ETABU QUARTZ PRODS
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