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Organic-inorganic compound fluorescent powder, manufacturing method and application

An inorganic compounding and manufacturing method technology, applied in chemical instruments and methods, semiconductor/solid-state device manufacturing, luminescent materials, etc., can solve the problems of mismatching excitation wavelength LED chips, low light conversion efficiency and brightness, etc., to avoid non-radiation The effect of energy transfer, improving stability and improving quantum efficiency

Inactive Publication Date: 2011-02-02
OCEANS KING LIGHTING SCI&TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The first purpose of the embodiments of the present invention is to provide a method for manufacturing an organic-inorganic composite phosphor, which aims to solve the problems of existing inorganic fluorescent materials, such as the mismatch between excitation wavelength and LED chip, low light conversion efficiency and brightness, and the current There is a problem that photochemical reactions occur between organic fluorescent materials in an excited state and organic packaging materials

Method used

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  • Organic-inorganic compound fluorescent powder, manufacturing method and application
  • Organic-inorganic compound fluorescent powder, manufacturing method and application
  • Organic-inorganic compound fluorescent powder, manufacturing method and application

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Get rhodamine compound rhodamine 6G (Acros company) 0.01mmol, be dissolved in the ethanol of 100ml, be mixed with 10 -4 mol / L solution, immerse porous glass whose pore volume accounts for 25% of the total volume of porous glass into the above solution for 8 hours, take it out, wash the surface with ethanol and dry it, then pulverize and grind it to obtain organic- Inorganic composite phosphor. figure 1 A comparison chart of the emission spectra of the organic-inorganic composite phosphor powder prepared in this example and commercially available phosphor powder is given, wherein curve 1 is the emission spectrum of the organic-inorganic composite phosphor powder prepared in this example 1 under the excitation of 475nm excitation light Spectrum; Curve 2 is commercially available YAG (yttrium aluminum garnet, yttrium aluminum garnet), a kind of Ce commercial fluorescent powder (Xi'an Rainbow Fluorescent Materials Co., Ltd.) emission spectrum under its optimal excitation wa...

Embodiment 2

[0037] Get coumarin compound coumarin 307 (Acros company) 0.1mmol, be dissolved in the ethanol of 10ml, be mixed with 10 -2 mol / L solution, the porous glass whose pore volume accounts for 30% of the total volume of the porous glass is immersed in the above solution for 8 hours, taken out, cleaned with ethanol and dried, then pulverized and ground to obtain organic - Inorganic composite phosphor.

Embodiment 3

[0039] Get fluorene compound 9,9-bis(4-aminophenyl) fluorene (Acros company) 0.1mmol, be dissolved in the chloroform of 100ml, be mixed with 10 -3 mol / L solution, immerse porous glass whose pore volume accounts for 25% of the total volume of porous glass into the above solution for 8 hours, take it out, wash the surface with chloroform and dry it, then pulverize and grind it to obtain organic- Inorganic composite phosphor.

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Abstract

The invention provides organic-inorganic compound fluorescent powder, a manufacturing method and application thereof. The method comprises the following steps of: immerging porous glass into the solution of an organic fluorescent material; taking the porous glass out after the porous glass absorbs the solution of the organic fluorescent material; and smashing the porous glass which absorbs the solution of the organic fluorescent material. The organic-inorganic compound fluorescent powder is prepared by the manufacturing method. The organic-inorganic compound fluorescent powder can be made into a light-emitting device by matching a semiconductor light-emitting diode in the range of between 200 and 550nm. The organic-inorganic compound fluorescent powder of the invention has a simple manufacturing process, can be doped into an encapsulating material of the semiconductor light-emitting diode, and solves the problem of a photochemical reaction between an organic light-emitting material and an organic encapsulating material.

Description

technical field [0001] The invention relates to the technical field of light emission and display, in particular to a method for manufacturing an organic-inorganic composite fluorescent powder, the organic-inorganic composite fluorescent powder produced by the method and its application. Background technique [0002] With the development of semiconductor lighting technology (LED), this revolutionary new light source has gradually entered our daily life. Using the third-generation semiconductor material gallium nitride as the semiconductor lighting source, the power consumption is only 1 / 10 of that of ordinary incandescent lamps at the same brightness, and the life span can reach more than 100,000 hours. As a new lighting technology, LED has many advantages such as energy saving, green environmental protection, and flexible application. It can be widely used in various indications, displays, decorations, backlights, and general lighting. This will trigger a revolution in the ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L51/50C09K11/06H01L51/54
Inventor 周明杰马文波
Owner OCEANS KING LIGHTING SCI&TECH CO LTD
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