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Inorganic NANO fluorescent particle composite and wavelength converting member

An inorganic nano-wavelength conversion technology, applied in nano-optics, nano-technology, nano-technology, etc., can solve the problems of poor water resistance of resin, easy water penetration, and easy degradation of inorganic nano-fluorescent particles over time, etc., to achieve the purpose of inhibiting degradation Effect

Active Publication Date: 2019-10-11
NIPPON ELECTRIC GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when a resin is used as a sealing material, there is a problem that the resin discolors due to the heat generated by the inorganic nano phosphor particles due to the irradiation of excitation light.
In addition, the resin has poor water resistance and easily permeates water, so there is a problem that the inorganic nano phosphor particles tend to deteriorate over time.

Method used

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  • Inorganic NANO fluorescent particle composite and wavelength converting member
  • Inorganic NANO fluorescent particle composite and wavelength converting member

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Embodiment

[0068] Hereinafter, the present invention will be described in more detail based on specific examples. However, the present invention is not limited to the following examples, and can be implemented with appropriate changes within a range that does not change the spirit.

[0069] (Example)

[0070] Inorganic nano phosphor particles (CdSe / ZnS, average particle diameter = 3nm) were dispersed in hexane as a dispersion medium at a concentration of 1% by mass, and alumina particles (average particle diameter 13nm) were added to 100 μl of the resulting dispersion. ) 0.19 g (288 parts by mass relative to 1 part by mass of inorganic nano-phosphor particles) and mixed, the dispersion medium was volatilized, and the surface of the inorganic nano-phosphor particles was covered with alumina particles to obtain an inorganic nano-phosphor particle composite.

[0071] 0.991 g of Sn—PF-based glass powder (average particle diameter=25 μm, softening point=160° C.) was mixed with 0.009 g of the ...

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Abstract

The present invention provides: an inorganic nano fluorescent particle composite capable of suppressing inorganic nano fluorescent particles from being degraded when being sealed in glass; and a wavelength converting member using the same. This inorganic nano fluorescent particle composite 1 is characterized by comprising: an inorganic nano fluorescent particle 2; and an inorganic fine particle 3adhered to the surface of the inorganic nano fluorescent particle 2.

Description

technical field [0001] The present invention relates to an inorganic nano phosphor particle complex and a wavelength converting member using the same. Background technique [0002] In recent years, light-emitting devices using excitation light sources such as light-emitting diodes (LEDs) and semiconductor lasers (LDs) to irradiate phosphors with excitation light generated by these excitation light sources and use the generated fluorescence as illumination light have been studied. In addition, studies have been conducted on the use of inorganic nano-phosphor particles such as quantum dots as phosphors. Quantum dots can adjust the fluorescence wavelength by changing their diameters, and have high luminous efficiency (for example, refer to Patent Documents 1 to 3). [0003] Inorganic nano phosphor particles have a property that they are easily deteriorated when they come into contact with moisture or oxygen in the atmosphere. Therefore, in order not to contact with the extern...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/08B82Y20/00C03C3/16C03C3/247C09K11/54C09K11/56C09K11/64C09K11/70C09K11/74C09K11/62C09K11/75H01L33/50
CPCC03C3/247C09K11/00C09K11/08C09K11/54C09K11/56C09K11/62C09K11/64C09K11/70C09K11/74C09K11/75C09K11/88C09K11/883B82Y20/00C09K11/02C03C3/16B82Y30/00H01L33/502C03C14/006C03C12/00C03C2214/16C03C2214/34C09K11/565C03C4/12H01L33/50
Inventor 安东民雄
Owner NIPPON ELECTRIC GLASS CO LTD