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Liquid quantum dot LED and preparation method thereof

A quantum dot and liquid technology, applied in the field of lighting and display, to achieve the effects of high luminous efficiency, easy preparation and simple structure

Inactive Publication Date: 2016-01-06
JILIN UNIV
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Problems solved by technology

After searching, liquid quantum dot LED with high luminous efficiency and its preparation method were prepared by using liquid quantum dot solution as the light-emitting layer through structural design. There are no related reports at home and abroad.

Method used

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  • Liquid quantum dot LED and preparation method thereof
  • Liquid quantum dot LED and preparation method thereof
  • Liquid quantum dot LED and preparation method thereof

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specific Embodiment approach

[0031] The specific embodiment of the present invention is described as follows in conjunction with accompanying drawing:

[0032] refer to figure 1 , the present invention provides a liquid quantum dot LED, which is mainly composed of a light-emitting chip base and a light-emitting layer. The light-emitting chip base includes a heat dissipation substrate and an excitation light source layer, wherein the excitation light source layer includes an electrode 1 and a light-emitting chip 3, wherein The light-emitting chip is a gallium nitride (GaN) chip or an ultraviolet LED chip. The electrodes 1 and the light-emitting chip 3 are fixed on the heat dissipation substrate and connected by gold wires 2. The surface of the light-emitting chip is filled with the first silica gel or ring Oxygen resin 4, a sealed glass partition 5 is installed outside the first silica gel or epoxy resin 4 to realize the sealing of the exciting light source layer. The luminescent layer 6 is a layer of liq...

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Abstract

The invention discloses a liquid quantum dot LED and a preparation method thereof. The liquid quantum dot LED uses a liquid quantum dot as a light emitting layer which has a better quantum yield and higher brightness and luminous efficiency compared with a solid-state quantum dot light emitting layer. The preparation method of the liquid quantum dot LED comprises the steps that according to the photoluminescence excitation requirement of the liquid quantum dot, a light emitting chip of appropriate wavelength is selected as an excitation light source; the prepared liquid quantum dot is injected into the light emitting layer through hydraulic injecting; and finally the liquid quantum dot LED is prepared through combination installation. The LED prepared through the method provided by the invention has the advantages of simple LED structure, easy preparation process and low material loss.

Description

technical field [0001] The invention relates to a liquid quantum dot LED and a preparation method thereof, belonging to the field of illumination and display. Background technique [0002] With the development of science and technology and the improvement of people's awareness of environmental protection, more and more new materials are used in the field of lighting. As a new type of luminescent material, quantum dots have the characteristics of high quantum efficiency, size-dependent adjustable band gap, and excellent half-width of emission spectrum, and have good application prospects. [0003] In recent years, with the in-depth study of quantum dot materials, quantum dots have become excellent light-emitting materials for the preparation of light-emitting diodes (Light-Emitting Diode, abbreviated as LED). Compared with traditional LED luminescent materials, quantum dots have the advantages of higher luminous efficiency, longer service life, higher color rendering, and be...

Claims

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Application Information

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IPC IPC(8): H01L33/06H01L33/26H01L33/00
CPCH01L33/06H01L33/005H01L33/0075H01L33/26H01L2933/0025
Inventor 张宇王鹤林张铁强
Owner JILIN UNIV
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