CN107644926A - A kind of high efficiency preparation method of miniature white light LED part - Google Patents
A kind of high efficiency preparation method of miniature white light LED part Download PDFInfo
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- CN107644926A CN107644926A CN201710869138.9A CN201710869138A CN107644926A CN 107644926 A CN107644926 A CN 107644926A CN 201710869138 A CN201710869138 A CN 201710869138A CN 107644926 A CN107644926 A CN 107644926A
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- fluorescent powder
- light led
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- led part
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Abstract
A kind of high efficiency preparation method of miniature white light LED part of the present invention, preparation method is simple, miniature white light LED part is prepared according to the white-light spectrum that theory is given, accurately, efficiency high, preparation process time cost are low, save labour costs and production cost, production efficiency is improved, can facilitate, be effectively obtained the miniature white light LED part of needs.
Description
Technical field
The present invention relates to white emitting fluorescent powder technical field, particularly a kind of high efficiency preparation method of miniature white light LED part.
Background technology
In recent years, with light emitting diode luminous efficiency and cost gradual reduction, semiconductor lighting is increasingly becoming existing
The development trend of generation illumination, white light LEDs are described as the forth generation lighting electric light source after incandescent lamp, fluorescent lamp and electricity-saving lamp,
It is referred to as " 21 century green light source ".
Realize that the conventional approach of white light LEDs has following three class at present：（1）Obtained with red, green and blue three-primary color LED chip hybrid
To white light LEDs；
（2）Red, green and blue fluorescent material is excited to realize white light LEDs using purple LED chip;
（3）Yellow fluorescent powder is excited with blue-light LED chip, the gold-tinted of gained and remaining blue light obtain white light LEDs.
It is all the empirical value obtained according to test of many times to prepare miniature white light LED part at present, and neither one is completely managed
By calculation process, the ratio debugging work load of different materials part can be caused larger, material of wasting time and energy, cause production cost to increase
Greatly, production efficiency reduces.Therefore, it is necessary to develop a kind of preparation of miniature white light LED part cost-effective, production efficiency is high
Method.
The content of the invention
Goal of the invention：In order to solve the above problems, it is an object of the invention to provide a kind of height of miniature white light LED part
Imitate preparation method.
The content of the invention：A kind of high efficiency preparation method of miniature white light LED part, including following methods step：
（1）According to the white-light spectrum of theoretical calculation, array uses atomization coated in LED chip after white emitting fluorescent powder is matched somebody with somebody into glue
Spraying method, on LED chip surface, the white fluorescent rubber powder of 3-100 μ m thicks is deposited, is toasted under the conditions of 120-150 DEG C solid
Change 8-20min；
（2）In step（1）On the basis of, it is repeated successively, certain thickness white fluorescent rubber powder is deposited again, until reaching
To 5-150 μm of preset thickness, make the intensity of its glow peak more consistent than the intensity ratio of the glow peak of the white-light spectrum with theoretical calculation,
The baking-curing 8-20min at 120-150 DEG C again；
（3）According to product category, fluorescent glue increases molding lens and carries out optical design and protection or straight after being covered to complete
Used after tapping into the baking-curing of line number strong point survey as device, realization is obtained with luminous efficiency by different deposit thickness
High, the white light LED part array of adjustable color；
（4）White light LED part array is cut, obtains single miniature white light LED part.
Preferably, described step（1）In white fluorescent powder be perovskite white fluorescent powder.
Preferably, described step（1）In white fluorescent powder be organic perovskite white fluorescent powder.
Preferably, described white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Preferably, organic perovskite white fluorescent powder preparation method of described organosilicon modification is by organic perovskite material
Organic perovskite dispersion liquid is formed in the scattered organic solvent again of material, wherein the weight of organic perovskite material and organic solvent ratio is
10-20:50, silica nanosol, magnetic agitation are added into organic perovskite dispersion liquid under the conditions of magnetic agitation
Hexafluoro butyl propyl trimethoxy silicane is added after uniformly to be reacted to obtain organic perovskite colloidal sol of organosilicon modification, dioxy
The weight ratio of SiClx Nano sol, hexafluoro butyl propyl trimethoxy silicane and organic perovskite dispersion liquid is（20-30）:（20-
30）:（60-70）, reaction temperature is 30-40 DEG C, reaction time 2-4h, then is prepared through dry.
Preferably, organic perovskite material in organic perovskite white fluorescent powder preparation method of described organosilicon modification
Molecular formula is R2BX4, wherein R is methylamine, ethamine or propylamine cation, and B Pb, X are Cl or Br.
Preferably, silica nanometer is molten in organic perovskite white fluorescent powder preparation method of described organosilicon modification
Glue size is 10-20nm.Directly it can be bought from market.
Preferably, organic solvent is third in organic perovskite white fluorescent powder preparation method of described organosilicon modification
The mixed organic solvents of one or more arbitrary proportions mixing in ketone, cyclohexanone, toluene or dimethylbenzene.
Preferably, described step（1）In the peak wavelength of white fluorescent powder be in 350-405nm.
Preferably, described step（1）In white fluorescent rubber powder for silica gel, diluent and white fluorescent powder according to weight
Compare 1-2:1:1 matches somebody with somebody glue.
The beneficial effects of the present invention are：A kind of high efficiency preparation method of miniature white light LED part of the present invention, preparation side
Method is simple, and miniature white light LED part is prepared according to the white-light spectrum that theory is given, accurately, efficiency high, preparation process time cost
It is low, labour costs and production cost are saved, production efficiency is improved, can facilitate, be effectively obtained the miniature white light LEDs device of needs
Part.
Embodiment
In order to illustrate more clearly of the embodiment of the present application or technical scheme of the prior art, letter will be made to embodiment below
Singly introduce, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to following
Embodiment obtains other embodiment.
Embodiment 1
A kind of high efficiency preparation method of miniature white light LED part, including following methods step：
（1）According to the white-light spectrum of theoretical calculation, array uses atomization coated in LED chip after white emitting fluorescent powder is matched somebody with somebody into glue
Spraying method, on LED chip surface, the white fluorescent rubber powder of 3 μ m thicks of deposition, the baking-curing 8min under the conditions of 120 DEG C；
（2）In step（1）On the basis of, it is repeated successively, certain thickness white fluorescent rubber powder is deposited again, until reaching
To 5 μm of preset thickness, make the intensity of its glow peak more consistent than the intensity ratio of the glow peak of the white-light spectrum with theoretical calculation, again
The baking-curing 8min at 120 DEG C；
（3）According to product category, fluorescent glue increases molding lens and carries out optical design and protection or straight after being covered to complete
Used after tapping into the baking-curing of line number strong point survey as device, realization is obtained with luminous efficiency by different deposit thickness
High, the white light LED part array of adjustable color；
（4）White light LED part array is cut, obtains single miniature white light LED part.
Described step（1）In white fluorescent powder be perovskite white fluorescent powder.
Described step（1）In white fluorescent powder be organic perovskite white fluorescent powder.
Described white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Organic perovskite white fluorescent powder preparation method of described organosilicon modification is to disperse organic perovskite material
Organic perovskite dispersion liquid is formed in organic solvent again, wherein the weight of organic perovskite material and organic solvent ratio is 10:50,
Silica nanosol is added into organic perovskite dispersion liquid under the conditions of magnetic agitation, magnetic agitation uniformly adds afterwards
Hexafluoro butyl propyl trimethoxy silicane is reacted to obtain organic perovskite colloidal sol of organosilicon modification, and silica nanometer is molten
The weight ratio of glue, hexafluoro butyl propyl trimethoxy silicane and organic perovskite dispersion liquid is 20:20:60, reaction temperature 30
DEG C, reaction time 2h, then be prepared through drying.
Organic perovskite material molecule formula in organic perovskite white fluorescent powder preparation method of described organosilicon modification
For R2BX4, wherein R is methylamine, ethamine or propylamine cation, and B Pb, X are Cl or Br.
Silica nanosol size in organic perovskite white fluorescent powder preparation method of described organosilicon modification
For 10nm.Directly it can be bought from market.
Organic solvent is acetone, hexamethylene in organic perovskite white fluorescent powder preparation method of described organosilicon modification
The mixed organic solvents of one or more arbitrary proportions mixing in ketone, toluene or dimethylbenzene.
Described step（1）In the peak wavelength of white fluorescent powder be in 350nm.
Described step（1）In white fluorescent rubber powder compare 1-2 according to weight for silica gel, diluent and white fluorescent powder:
1:1 matches somebody with somebody glue.
Embodiment 2
（1）According to the white-light spectrum of theoretical calculation, array uses atomization coated in LED chip after white emitting fluorescent powder is matched somebody with somebody into glue
Spraying method, on LED chip surface, the white fluorescent rubber powder of 100 μ m thicks of deposition, the baking-curing under the conditions of 150 DEG C
20min；
（2）In step（1）On the basis of, it is repeated successively, certain thickness white fluorescent rubber powder is deposited again, until reaching
To 150 μm of preset thickness, make the intensity of its glow peak more consistent than the intensity ratio of the glow peak of the white-light spectrum with theoretical calculation, then
The secondary baking-curing 20min at 150 DEG C；
（3）According to product category, fluorescent glue increases molding lens and carries out optical design and protection or straight after being covered to complete
Used after tapping into the baking-curing of line number strong point survey as device, realization is obtained with luminous efficiency by different deposit thickness
High, the white light LED part array of adjustable color；
（4）White light LED part array is cut, obtains single miniature white light LED part.
Described step（1）In white fluorescent powder be perovskite white fluorescent powder.
Described step（1）In white fluorescent powder be organic perovskite white fluorescent powder.
Described white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Organic perovskite white fluorescent powder preparation method of described organosilicon modification is to disperse organic perovskite material
Organic perovskite dispersion liquid is formed in organic solvent again, wherein the weight of organic perovskite material and organic solvent ratio is 20:50,
Silica nanosol is added into organic perovskite dispersion liquid under the conditions of magnetic agitation, magnetic agitation uniformly adds afterwards
Hexafluoro butyl propyl trimethoxy silicane is reacted to obtain organic perovskite colloidal sol of organosilicon modification, and silica nanometer is molten
The weight ratio of glue, hexafluoro butyl propyl trimethoxy silicane and organic perovskite dispersion liquid is 30: 30:70, reaction temperature is
40 DEG C, reaction time 4h, then be prepared through drying.
Organic perovskite material molecule formula in organic perovskite white fluorescent powder preparation method of described organosilicon modification
For R2BX4, wherein R is methylamine, ethamine or propylamine cation, and B Pb, X are Cl or Br.
Silica nanosol size in organic perovskite white fluorescent powder preparation method of described organosilicon modification
For 20nm.Directly it can be bought from market.
Organic solvent is acetone, hexamethylene in organic perovskite white fluorescent powder preparation method of described organosilicon modification
The mixed organic solvents of one or more arbitrary proportions mixing in ketone, toluene or dimethylbenzene.
Described step（1）In the peak wavelength of white fluorescent powder be in 405nm.
Described step（1）In white fluorescent rubber powder for silica gel, diluent and white fluorescent powder according to weight ratio 2:1:1
With glue.
Embodiment 3
（1）According to the white-light spectrum of theoretical calculation, array uses atomization coated in LED chip after white emitting fluorescent powder is matched somebody with somebody into glue
Spraying method, on LED chip surface, the white fluorescent rubber powder of 50 μ m thicks of deposition, the baking-curing 15min under the conditions of 135 DEG C；
（2）In step（1）On the basis of, it is repeated successively, certain thickness white fluorescent rubber powder is deposited again, until reaching
To 80 μm of preset thickness, make the intensity of its glow peak more consistent than the intensity ratio of the glow peak of the white-light spectrum with theoretical calculation, then
The secondary baking-curing 15min at 135 DEG C；
（3）According to product category, fluorescent glue increases molding lens and carries out optical design and protection or straight after being covered to complete
Used after tapping into the baking-curing of line number strong point survey as device, realization is obtained with luminous efficiency by different deposit thickness
High, the white light LED part array of adjustable color；
（4）White light LED part array is cut, obtains single miniature white light LED part.
Described step（1）In white fluorescent powder be perovskite white fluorescent powder.
Described step（1）In white fluorescent powder be organic perovskite white fluorescent powder.
Described white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Organic perovskite white fluorescent powder preparation method of described organosilicon modification is to disperse organic perovskite material
Organic perovskite dispersion liquid is formed in organic solvent again, wherein the weight of organic perovskite material and organic solvent ratio is 15:50,
Silica nanosol is added into organic perovskite dispersion liquid under the conditions of magnetic agitation, magnetic agitation uniformly adds afterwards
Hexafluoro butyl propyl trimethoxy silicane is reacted to obtain organic perovskite colloidal sol of organosilicon modification, and silica nanometer is molten
The weight ratio of glue, hexafluoro butyl propyl trimethoxy silicane and organic perovskite dispersion liquid is 25:25:65, reaction temperature 35
DEG C, reaction time 3h, then be prepared through drying.
Organic perovskite material molecule formula in organic perovskite white fluorescent powder preparation method of described organosilicon modification
For R2BX4, wherein R is methylamine, ethamine or propylamine cation, and B Pb, X are Cl or Br.
Silica nanosol size in organic perovskite white fluorescent powder preparation method of described organosilicon modification
For 15nm.Directly it can be bought from market.
Organic solvent is acetone, hexamethylene in organic perovskite white fluorescent powder preparation method of described organosilicon modification
The mixed organic solvents of one or more arbitrary proportions mixing in ketone, toluene or dimethylbenzene.
Described step（1）In the peak wavelength of white fluorescent powder be in 365nm.
Described step（1）In white fluorescent rubber powder for silica gel, diluent and white fluorescent powder according to weight ratio 1.5:
1:1 matches somebody with somebody glue.
Above example is only illustrating the preferred technical solution of the present invention, it is noted that for the general of the art
For logical technical staff, under the premise without departing from the principles of the invention, some improvement made or equivalent substitution, this is accordingly to be regarded as
The protection domain of invention, it should cover in scope of the presently claimed invention.
Claims (10)
1. a kind of high efficiency preparation method of miniature white light LED part, it is characterised in that including following methods step：
（1）According to the white-light spectrum of theoretical calculation, array uses atomization coated in LED chip after white emitting fluorescent powder is matched somebody with somebody into glue
Spraying method, on LED chip surface, the white fluorescent rubber powder of 3-100 μ m thicks is deposited, is toasted under the conditions of 120-150 DEG C solid
Change 8-20min；
（2）In step（1）On the basis of, it is repeated successively, certain thickness white fluorescent rubber powder is deposited again, until reaching
To 5-150 μm of preset thickness, make the intensity of its glow peak more consistent than the intensity ratio of the glow peak of the white-light spectrum with theoretical calculation,
The baking-curing 8-20min at 120-150 DEG C again；
（3）According to product category, fluorescent glue increases molding lens and carries out optical design and protection or straight after being covered to complete
Used after tapping into the baking-curing of line number strong point survey as device, realization is obtained with luminous efficiency by different deposit thickness
High, the white light LED part array of adjustable color；
（4）White light LED part array is cut, obtains single miniature white light LED part.
2. the high efficiency preparation method of a kind of miniature white light LED part according to claim 1, it is characterised in that described
Step（1）In white fluorescent powder be perovskite white fluorescent powder.
3. the high efficiency preparation method of a kind of miniature white light LED part according to claim 2, it is characterised in that described
Step（1）In white fluorescent powder be organic perovskite white fluorescent powder.
4. the high efficiency preparation method of a kind of miniature white light LED part according to claim 3, it is characterised in that described
White fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
5. the high efficiency preparation method of a kind of miniature white light LED part according to claim 4, it is characterised in that described
Organic perovskite white fluorescent powder preparation method of organosilicon modification is by shape in the scattered organic solvent again of organic perovskite material
Into organic perovskite dispersion liquid, wherein the weight of organic perovskite material and organic solvent ratio is 10-20:50, magnetic agitation bar
Silica nanosol is added under part into organic perovskite dispersion liquid, magnetic agitation uniformly adds hexafluoro butyl third afterwards
Base trimethoxy silane is reacted to obtain organic perovskite colloidal sol of organosilicon modification, silica nanosol, hexafluoro fourth
The weight ratio of base propyl trimethoxy silicane and organic perovskite dispersion liquid is（20-30）:（20-30）:（60-70）, reaction temperature
Spend for 30-40 DEG C, reaction time 2-4h, then be prepared through drying.
6. the high efficiency preparation method of a kind of miniature white light LED part according to claim 5, it is characterised in that described
Organic perovskite material molecule formula is R in organic perovskite white fluorescent powder preparation method of organosilicon modification2BX4, wherein R is
Methylamine, ethamine or propylamine cation, B Pb, X are Cl or Br.
7. the high efficiency preparation method of a kind of miniature white light LED part according to claim 5, it is characterised in that described
Silica nanosol size is 10-20nm in organic perovskite white fluorescent powder preparation method of organosilicon modification.
8. the high efficiency preparation method of a kind of miniature white light LED part according to claim 5, it is characterised in that described
Organic solvent is acetone, cyclohexanone, toluene or dimethylbenzene in organic perovskite white fluorescent powder preparation method of organosilicon modification
In one or more arbitrary proportions mixing mixed organic solvents.
9. the high efficiency preparation method of a kind of miniature white light LED part according to claim 1, it is characterised in that described
Step（1）In the peak wavelength of white fluorescent powder be in 350-405nm.
10. the high efficiency preparation method of a kind of miniature white light LED part according to claim 1, it is characterised in that described
Step（1）In white fluorescent rubber powder compare 1-2 according to weight for silica gel, diluent and white fluorescent powder:1:1 matches somebody with somebody glue.
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| US20020184969A1 (en) * | 2001-03-29 | 2002-12-12 | Kodas Toivo T. | Combinatorial synthesis of particulate materials |
| WO2014144609A1 (en) * | 2013-03-15 | 2014-09-18 | Nitto Denko Corporation | Method of manufacturing phosphor translucent ceramics and light emitting devices |
| CN104861958A (en) * | 2015-05-14 | 2015-08-26 | 北京理工大学 | Perovskite/polymer composite luminescent material and preparation method thereof |
| CN106025042A (en) * | 2016-07-25 | 2016-10-12 | 吉林大学 | Stable white-light LED based on silicon dioxide coated perovskite quantum dots, and preparation method thereof |
| CN106653980A (en) * | 2017-01-17 | 2017-05-10 | 大连德豪光电科技有限公司 | Method for preparing white-light LED package device with high color rendering index |
| CN106833614A (en) * | 2017-03-15 | 2017-06-13 | 厦门大学 | The preparation method of quantum dot composite fluorescent powder |
-
2017
- 2017-09-22 CN CN201710869138.9A patent/CN107644926B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020184969A1 (en) * | 2001-03-29 | 2002-12-12 | Kodas Toivo T. | Combinatorial synthesis of particulate materials |
| WO2014144609A1 (en) * | 2013-03-15 | 2014-09-18 | Nitto Denko Corporation | Method of manufacturing phosphor translucent ceramics and light emitting devices |
| CN104861958A (en) * | 2015-05-14 | 2015-08-26 | 北京理工大学 | Perovskite/polymer composite luminescent material and preparation method thereof |
| CN106025042A (en) * | 2016-07-25 | 2016-10-12 | 吉林大学 | Stable white-light LED based on silicon dioxide coated perovskite quantum dots, and preparation method thereof |
| CN106653980A (en) * | 2017-01-17 | 2017-05-10 | 大连德豪光电科技有限公司 | Method for preparing white-light LED package device with high color rendering index |
| CN106833614A (en) * | 2017-03-15 | 2017-06-13 | 厦门大学 | The preparation method of quantum dot composite fluorescent powder |
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