CN107644926B - 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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- CN107644926B CN107644926B CN201710869138.9A CN201710869138A CN107644926B CN 107644926 B CN107644926 B CN 107644926B CN 201710869138 A CN201710869138 A CN 201710869138A CN 107644926 B CN107644926 B CN 107644926B
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Abstract
A kind of high efficiency preparation method of miniature white light LED part of the invention, preparation method is simple, according to theory, given white-light spectrum prepares miniature white light LED part, accurately, high-efficient, preparation process time is at low cost, save labour costs and production cost, production efficiency is improved, can be convenient, 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, especially a kind of high efficiency preparation method of miniature white light LED part.
Background technique
In recent years, gradually decreasing with the luminous efficiency of light emitting diode and cost, semiconductor lighting are increasingly becoming existing
The development trend of generation illumination, white light LEDs are known as the forth generation lighting electric light source after incandescent lamp, fluorescent lamp and energy-saving lamp,
Referred to as " 21 century green light source ".
It realizes that the common approach of white light LEDs has following three classes at present: (1) being obtained with red, green and blue three-primary color LED chip hybrid
To white light LEDs；
(2) white light LEDs are realized using purple LED chip excitation red, green and blue fluorescent powder;
(3) yellow fluorescent powder is excited with blue-light LED chip, resulting yellow light and remaining blue light obtain white light LEDs.
Preparing miniature white light LED part at present all is the empirical value obtained according to test of many times, none complete reason
By calculation process, the ratio debugging work load that will cause different materials part is larger, time-consuming and laborious to take material, and production cost is caused to increase
Greatly, production efficiency reduces.Therefore, it is necessary to develop a kind of preparation of the miniature white light LED part of save the cost, high production efficiency
Method.
Summary of the invention
Goal of the invention: to solve the above-mentioned problems, the purpose of the present invention is to provide a kind of height of miniature white light LED part
Imitate preparation method.
Summary of the invention: a kind of high efficiency preparation method of miniature white light LED part comprises the following methods:
(1) according to the white-light spectrum of theoretical calculation, white emitting fluorescent powder is coated in LED chip with array after glue, is used
Atomizing spraying method deposits the white fluorescent rubber powder of 3-100 μ m thick, dries under the conditions of 120-150 DEG C on LED chip surface
Roasting solidification 8-20min；
(2) successively repeated on the basis of step (1), certain thickness white fluorescent rubber powder is deposited again, directly
To reaching 5-150 μm of preset thickness, make intensity ratio of the intensity of its glow peak than the glow peak of the white-light spectrum with theoretical calculation
Unanimously, the baking-curing 8-20min at 120-150 DEG C again；
(3) according to product category, fluorescent glue be covered to complete after increase molding lens carry out optical design and protection or
Person uses after directly carrying out the baking-curing of data point survey as device, realizes and obtains having luminous imitate by different deposition thickness
The white light LED part array of rate height, adjustable color；
(4) white light LED part array is cut, single miniature white light LED part is obtained.
Preferably, the white fluorescent powder in the step (1) is perovskite white fluorescent powder.
Preferably, the white fluorescent powder in the step (1) is organic perovskite white fluorescent powder.
Preferably, the white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Preferably, organic perovskite white fluorescent powder preparation method of organosilicon modification is by organic perovskite material
Material disperses in organic solvent again to form organic perovskite dispersion liquid, wherein the weight ratio of organic perovskite material and organic solvent is
Silica nanosol, magnetic agitation is added into organic perovskite dispersion liquid under the conditions of magnetic agitation in 10-20:50
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 are 30-40 DEG C, reaction time 2-4h, then are prepared through drying.
Preferably, organic perovskite material in organic perovskite white fluorescent powder preparation method of 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 organosilicon modification
Glue is having a size of 10-20nm.It can directly be bought from market.
Preferably, organic solvent is third in organic perovskite white fluorescent powder preparation method of organosilicon modification
One of ketone, cyclohexanone, toluene or dimethylbenzene or the mixed organic solvents of a variety of arbitrary proportions mixing.
Preferably, the peak wavelength of the white fluorescent powder in the step (1) is in 350-405nm.
Preferably, the white fluorescent rubber powder in the step (1) is silica gel, diluent and white fluorescent powder according to weight
Match glue than 1-2:1:1.
The beneficial effects of the present invention are: a kind of high efficiency preparation method of miniature white light LED part of the invention, preparation side
Method is simple, and according to theory, given white-light spectrum prepares miniature white light LED part, accurately, high-efficient, preparation process time cost
It is low, labour costs and production cost are saved, production efficiency is improved, can be convenient, be effectively obtained the miniature white light LEDs device of needs
Part.
Specific embodiment
In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, letter will be made to embodiment below
Singly introduce, it for those of ordinary skill in the art, without creative efforts, can also be according to following
Embodiment obtains other embodiments.
Embodiment 1
A kind of high efficiency preparation method of miniature white light LED part, comprises the following methods:
(1) according to the white-light spectrum of theoretical calculation, white emitting fluorescent powder is coated in LED chip with array after glue, is used
Atomizing spraying method deposits the white fluorescent rubber powder of 3 μ m thicks, baking-curing under the conditions of 120 DEG C on LED chip surface
8min；
(2) successively repeated on the basis of step (1), certain thickness white fluorescent rubber powder is deposited again, directly
To reaching 5 μm of preset thickness, make the intensity of its glow peak than with the intensity of the glow peak of the white-light spectrum of theoretical calculation than consistent,
The baking-curing 8min at 120 DEG C again；
(3) according to product category, fluorescent glue be covered to complete after increase molding lens carry out optical design and protection or
Person uses after directly carrying out the baking-curing of data point survey as device, realizes and obtains having luminous imitate by different deposition thickness
The white light LED part array of rate height, adjustable color；
(4) white light LED part array is cut, single miniature white light LED part is obtained.
White fluorescent powder in the step (1) is perovskite white fluorescent powder.
White fluorescent powder in the step (1) is organic perovskite white fluorescent powder.
The white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Organic perovskite white fluorescent powder preparation method of the organosilicon modification is to disperse organic perovskite material
Organic perovskite dispersion liquid is formed in organic solvent again, wherein the weight ratio of organic perovskite material and organic solvent is 10:50,
Silica nanosol is added into organic perovskite dispersion liquid under the conditions of magnetic agitation, magnetic agitation is uniformly added 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 the 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 the organosilicon modification
For 10nm.It can directly be bought from market.
Organic solvent is acetone, hexamethylene in organic perovskite white fluorescent powder preparation method of the organosilicon modification
One of ketone, toluene or dimethylbenzene or the mixed organic solvents of a variety of arbitrary proportions mixing.
The peak wavelength of white fluorescent powder in the step (1) is in 350nm.
White fluorescent rubber powder in the step (1) is silica gel, diluent and white fluorescent powder according to weight ratio 1-2:
1:1 matches glue.
Embodiment 2
(1) according to the white-light spectrum of theoretical calculation, white emitting fluorescent powder is coated in LED chip with array after glue, is used
Atomizing spraying method deposits the white fluorescent rubber powder of 100 μ m thicks, baking-curing under the conditions of 150 DEG C on LED chip surface
20min；
(2) successively repeated on the basis of step (1), certain thickness white fluorescent rubber powder is deposited again, directly
To reaching 150 μm of preset thickness, make the intensity of its glow peak than the intensity of the glow peak of the white-light spectrum with theoretical calculation than one
It causes, again the baking-curing 20min at 150 DEG C；
(3) according to product category, fluorescent glue be covered to complete after increase molding lens carry out optical design and protection or
Person uses after directly carrying out the baking-curing of data point survey as device, realizes and obtains having luminous imitate by different deposition thickness
The white light LED part array of rate height, adjustable color；
(4) white light LED part array is cut, single miniature white light LED part is obtained.
White fluorescent powder in the step (1) is perovskite white fluorescent powder.
White fluorescent powder in the step (1) is organic perovskite white fluorescent powder.
The white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Organic perovskite white fluorescent powder preparation method of the organosilicon modification is to disperse organic perovskite material
Organic perovskite dispersion liquid is formed in organic solvent again, wherein the weight ratio of organic perovskite material and organic solvent is 20:50,
Silica nanosol is added into organic perovskite dispersion liquid under the conditions of magnetic agitation, magnetic agitation is uniformly added 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, and 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 the 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 the organosilicon modification
For 20nm.It can directly be bought from market.
Organic solvent is acetone, hexamethylene in organic perovskite white fluorescent powder preparation method of the organosilicon modification
One of ketone, toluene or dimethylbenzene or the mixed organic solvents of a variety of arbitrary proportions mixing.
The peak wavelength of white fluorescent powder in the step (1) is in 405nm.
White fluorescent rubber powder in the step (1) is 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, white emitting fluorescent powder is coated in LED chip with array after glue, is used
Atomizing spraying method deposits the white fluorescent rubber powder of 50 μ m thicks, baking-curing under the conditions of 135 DEG C on LED chip surface
15min；
(2) successively repeated on the basis of step (1), certain thickness white fluorescent rubber powder is deposited again, directly
To reaching 80 μm of preset thickness, make the intensity of its glow peak than the intensity of the glow peak of the white-light spectrum with theoretical calculation than one
It causes, again the baking-curing 15min at 135 DEG C；
(3) according to product category, fluorescent glue be covered to complete after increase molding lens carry out optical design and protection or
Person uses after directly carrying out the baking-curing of data point survey as device, realizes and obtains having luminous imitate by different deposition thickness
The white light LED part array of rate height, adjustable color；
(4) white light LED part array is cut, single miniature white light LED part is obtained.
White fluorescent powder in the step (1) is perovskite white fluorescent powder.
White fluorescent powder in the step (1) is organic perovskite white fluorescent powder.
The white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification.
Organic perovskite white fluorescent powder preparation method of the organosilicon modification is to disperse organic perovskite material
Organic perovskite dispersion liquid is formed in organic solvent again, wherein the weight ratio of organic perovskite material and organic solvent is 15:50,
Silica nanosol is added into organic perovskite dispersion liquid under the conditions of magnetic agitation, magnetic agitation is uniformly added 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 the 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 the organosilicon modification
For 15nm.It can directly be bought from market.
Organic solvent is acetone, hexamethylene in organic perovskite white fluorescent powder preparation method of the organosilicon modification
One of ketone, toluene or dimethylbenzene or the mixed organic solvents of a variety of arbitrary proportions mixing.
The peak wavelength of white fluorescent powder in the step (1) is in 365nm.
White fluorescent rubber powder in the step (1) is silica gel, diluent and white fluorescent powder according to weight ratio 1.5:
1:1 matches glue.
Above embodiments are only to illustrate the preferred technical solution of the present invention, it is noted that for the general of the art
For logical technical staff, without departing from the principle of the present invention, several improvement made or equivalent replacement are accordingly to be regarded as this
The protection scope of invention should be covered within the scope of the claims of the present invention.
Claims (3)
1. a kind of high efficiency preparation method of miniature white light LED part, which is characterized in that comprise the following methods:
(1) according to the white-light spectrum of theoretical calculation, white fluorescent powder is coated in LED chip with array after glue, uses atomization
Spraying method deposits the white fluorescent rubber powder of 3-100 μ m thick on LED chip surface, toasts under the conditions of 120-150 DEG C solid
Change 8-20min；
(2) successively repeated on the basis of step (1), 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 than with the intensity of the glow peak of the white-light spectrum of theoretical calculation than consistent,
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
It is used after tapping into the baking-curing of line number strong point survey as device, realization is obtained by different deposition thickness with luminous efficiency
High, adjustable color white light LED part array；
(4) white light LED part array is cut, single miniature white light LED part is obtained；
The white fluorescent powder is organic perovskite white fluorescent powder of organosilicon modification；The organosilicon is modified organic
Perovskite white fluorescent powder, preparation method thereof is that will form organic perovskite in the dispersion of organic perovskite material again organic solvent to disperse
Liquid, wherein the weight ratio of organic perovskite material and organic solvent is 10-20:50, to the organic calcium under the conditions of magnetic agitation
Be added silica nanosol in titanium ore dispersion liquid, magnetic agitation be uniformly added afterwards hexafluoro butyl propyl trimethoxy silicane into
Row reaction obtains organic perovskite colloidal sol of organosilicon modification, silica nanosol, hexafluoro butyl propyl trimethoxy silicon
The weight ratio of alkane and organic perovskite dispersion liquid is (20-30): (20-30): (60-70), and reaction temperature is 30-40 DEG C, reaction
Time is 2-4h, then is prepared through drying；In organic perovskite white fluorescent powder preparation method of the organosilicon modification
Organic perovskite material molecule formula is R2BX4, wherein R is methylamine, ethamine or propylamine cation, and B Pb, X are Cl or Br；It is described
Organosilicon modification organic perovskite white fluorescent powder preparation method in silica nanosol having a size of 10-20nm；Institute
Organic solvent is acetone, cyclohexanone, toluene or two in the organic perovskite white fluorescent powder preparation method for the organosilicon modification stated
One of toluene or the mixed organic solvents of a variety of arbitrary proportions mixing.
2. a kind of high efficiency preparation method of miniature white light LED part according to claim 1, which is characterized in that described
The peak wavelength of white fluorescent powder in step (1) is in 350-405nm.
3. a kind of high efficiency preparation method of miniature white light LED part according to claim 1, which is characterized in that described
White fluorescent rubber powder in step (1) matches glue according to weight ratio 1-2:1:1 for silica gel, diluent and white fluorescent powder.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20020184969A1 (en) * | 2001-03-29 | 2002-12-12 | Kodas Toivo T. | Combinatorial synthesis of particulate materials |
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Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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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