Red fluorescence powder for laser medical-treatment illumination and preparation method and application thereof

A technology for red phosphor powder and laser medical treatment, applied in the field of red phosphor powder, can solve the problem of red LED light saturation, etc., and achieve the effect of promoting synthesis, good luminous efficiency, and realizing spectrum tunable.

Inactive Publication Date: 2015-11-25
CHINA JILIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In order to solve the problems existing in the above-mentioned prior art, meet the needs of high-power red light medical lighting, and solve the problems of red light LED light saturation, the present invention provides a red fluorescent powder M for laser medical lighting. 1-x-z Li x Al 1-x-y Si 1+x+y N 3-y C y :zEu 2+ And its preparation method and application

Method used

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  • Red fluorescence powder for laser medical-treatment illumination and preparation method and application thereof
  • Red fluorescence powder for laser medical-treatment illumination and preparation method and application thereof
  • Red fluorescence powder for laser medical-treatment illumination and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] Without adding flux, doped with 0.10mol of Li atoms, 0.10mol of C atoms, 0.89mol of Ca atoms, the molar amount of Li doping is 0.10, and the high temperature solid phase method is used to prepare Ca 0.89 Li 0.1 Al 0.8 Si 1.2 N 2.9 C 0.1 :0.01Eu 2+ Phosphor.

[0039] According to the stoichiometric ratio, accurately weigh 32.6wt% calcium nitride (Ca 3 N 2 ), 38.1wt% silicon nitride (Si 3 N 4 ), 0.8wt% lithium nitride (Li 3 N), 24.3wt% aluminum nitride (AlN), 3.0wt% silicon carbide (SiC), 1.2wt% europium nitride (EuN) raw materials, put them in a mortar, thoroughly mix, grind and mix, and the resulting particles are uniform Move the powder into the crucible and fill it with a volume percentage of 95% N 2 And 5% H 2 High-temperature carbon tube furnace with reducing atmosphere, the calcination temperature is set to 1800℃, and the calcination time is 2h. After the furnace is cooled to room temperature 25°C, take out the sample, put it in a mortar and grind evenly to obtain high...

Embodiment 2

[0041] Without adding flux, doped with 0.20mol of Li atoms, 0.10mol of C atoms, and 0.89mol of Ca atoms to prepare Ca by high temperature solid phase method 0.79 Li 0.2 Al 0.7 Si 1.3 N 2.9 C 0.1 :0.01Eu 2+ Phosphor.

[0042] According to the stoichiometric ratio, accurately weigh 29.6wt% calcium nitride (Ca 3 N 2 ), 42.5wt% silicon nitride (Si 3 N 4 ), 1.8wt% lithium nitride (Li 3 N), 21.8wt% aluminum nitride (AlN), 3.0wt% silicon carbide (SiC), 1.3wt% europium nitride (EuN) raw materials, put them in a mortar, thoroughly mix, grind and mix, and the resulting particles are uniform Move the powder into the crucible and fill it with a volume percentage of 95% N 2 And 5% H 2 High-temperature carbon tube furnace with reducing atmosphere, the calcination temperature is set to 1800℃, and the calcination time is 2h. After the furnace is cooled to room temperature 25°C, take out the sample, put it in a mortar and grind evenly to obtain high purity Ca 0.79 Li 0.2 Al 0.7 Si 1.3 N 2.9 C 0.1 ...

Embodiment 3

[0044] Example 3 (for comparison)

[0045] Without adding flux, only 0.10mol of Li atoms and 0.89mol of Ca atoms are doped, and Ca is prepared by high temperature solid phase method 0.89 Li 0.1 Al 0.9 Si 1.1 N 3 :0.01Eu 2+ Phosphor.

[0046] Follow Ca 0.89 Li 0.1 Al 0.9 Si 1.1 N 3 :0.01Eu 2+ The stoichiometric ratio of the phosphor, accurately weighing 32.5wt% calcium nitride (Ca 3 N 2 ), 38.1wt% silicon nitride (Si 3 N 4 ), 0.9wt% lithium nitride (Li 3 N), 27.3wt% aluminum nitride (AlN), 1.2wt% europium nitride (EuN) raw materials, put them in a mortar, thoroughly mix, grind, and mix, and transfer the resulting uniform powder into the crucible and fill it with Percentage by volume 95% N 2 And 5% H 2 High-temperature carbon tube furnace with reducing atmosphere, the calcination temperature is set to 1800℃, and the calcination time is 2h. After the furnace is cooled to room temperature 25°C, take out the sample, put it in a mortar and grind evenly to obtain high purity Ca 0.89 Li 0....

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Abstract

The invention discloses red fluorescence powder for laser medical-treatment illumination and a preparation method and application thereof. The chemical formula of the red fluorescence powder is M1-x-zLixAl1-x-ySi1+x+yN3-yCy:zEu<2+> or M1-m+0.5n-pLimAl1-mSi1+mCnN3-n:pEu<2+>, wherein the x and the m are 0.01-0.3, the y and the n are 0.01-0.30, and the z and the p are 0.001-0.3. According to the preparation method of the red fluorescence powder for laser medical-treatment illumination, the fluorescence powder having good luminescence property is prepared by utilizing a high-temperature solid-state method and doping different atoms. In addition, the specific temperature is adopted for calcination, calcining reaction is performed at the temperature of 1500-1900 DEG C for 1-20 hours to enable components to be better bound together and to play excellent optical properties, and the red fluorescence powder is very suitable for manufacturing of medical-treatment illumination sources.

Description

Technical field [0001] The invention relates to the technical field of red fluorescent powder, in particular to a red fluorescent powder for laser medical lighting and a preparation method and application thereof. Background technique [0002] The mitochondria in human cells have high absorption of red light in the 600nm-700nm band, and the red light band has an excellent penetration effect on the human body, making the red light source widely used in the field of clinical medicine. Under red light irradiation, the enzyme activity in cell mitochondria is increased, and more adenosine triphosphate is secreted, which increases cell energy supply, thereby promoting cell metabolism and circulation, slowing cell senescence, and having the effect of beautifying and beautifying; at the same time, red light energy Increase the glycogen content in the human body, enhance protein synthesis, promote cell repair and regeneration, and thus play an important role in wound healing and treatment...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K11/65C09K11/80H01L33/50
Inventor 王乐罗东潘桦滟陈如标吴拓李旸晖张宏沈晔
Owner CHINA JILIANG UNIV
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