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Optical conversion light-emitting device having enhanced light emission efficiency using anisotropic metal nanoparticles

A metal nanoparticle, light-emitting device technology, applied in the fields of nanotechnology, nanotechnology, nanostructure manufacturing, etc., can solve the problems of light conversion light-emitting device limitations, etc., and achieve the effect of enhancing light conversion efficiency, color gamut and brightness

Active Publication Date: 2015-03-25
HANWHA TOTAL PETROCHEMICAL CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For this reason, there are significant limitations in realizing light-transforming light-emitting devices with high luminance and high color purity.

Method used

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  • Optical conversion light-emitting device having enhanced light emission efficiency using anisotropic metal nanoparticles
  • Optical conversion light-emitting device having enhanced light emission efficiency using anisotropic metal nanoparticles
  • Optical conversion light-emitting device having enhanced light emission efficiency using anisotropic metal nanoparticles

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Embodiment approach

[0045] The light-converting white light emitting light of the present invention formed by combining a light-emitting diode having an emission wavelength in the near-ultraviolet range or in the visible range and a light-emitting material having absorption and emission wavelengths in the visible range will be described in detail below with reference to the accompanying drawings. device.

[0046] figure 1 A schematic pattern diagram showing a concept describing a light-converting white light-emitting device having enhanced luminous efficiency due to anisotropic metal nanoparticles. figure 1 (a) is a schematic diagram illustrating the configuration of a light-converting white light emitting device, which may include: a substrate or a LED chip, a luminescent material, anisotropic metal nanoparticles, and a transparent polymer matrix. figure 1 (b) Exemplified light-emitting diode chip, spectral overlap of luminescent material and anisotropic metal nanoparticles.

[0047] figure ...

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Abstract

The present invention relates to a light-emitting device, which controls two or more types of surface plasmon resonance bands of anisotropic metal nanoparticles to be formed in the near ultraviolet ray area and the visible light area to optimize the overlapping with the wavelength of near ultraviolet rays or a blue light source and the absorption wavelength and emission wavelength of a light-emitting material, thereby achieving both excitation enhancement and emission enhancement of the light-emitting material to improve the light-emitting efficiency. Further, the present invention relates to a light-emitting device, which controls each of two or more types of surface plasmon resonance bands of anisotropic metal nanoparticles to overlap with the absorption and emission wavelengths of two or more kinds of light-emitting materials having different emission wavelengths, thereby achieving simultaneous emission enhancement of two or more types of light-emitting materials to improve the color purity and the luminance.

Description

【Technical field】 [0001] The present invention relates to a light-converting light-emitting device with enhanced luminous efficiency using anisotropic metal nanoparticles having an aspect ratio, and more particularly, to a light-converting light-emitting device with maximized luminous efficiency, which is controlled by anisotropic Two or more surface plasmon resonance strips formed by heterosexual metal nanoparticles optimize the overlap of the wavelength of the near-ultraviolet or blue light source and the absorption wavelength and emission wavelength of the luminescent material, thereby presenting the excitation enhancement and emission enhancement of the luminescent material at the same time . 【Background technique】 [0002] Light-emitting diodes (LEDs) recently have advantages such as high luminous efficiency, high response, long life, and miniaturization compared with existing incandescent lamps, halogen lamps, and fluorescent lamps, and also have advantages as an envir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B82B1/00H01L33/04H01L33/00
CPCH01L33/04H01L33/50H01L2933/0083H10K50/852H01L33/502B82B1/00H01L33/00H10K50/85H01L33/505
Inventor 金基世李度勋张豪植催昶铉
Owner HANWHA TOTAL PETROCHEMICAL CO LTD
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