CN111739996A - White light LED based on gold-silver alloy cluster and preparation method thereof - Google Patents
White light LED based on gold-silver alloy cluster and preparation method thereof Download PDFInfo
- Publication number
- CN111739996A CN111739996A CN202010630032.5A CN202010630032A CN111739996A CN 111739996 A CN111739996 A CN 111739996A CN 202010630032 A CN202010630032 A CN 202010630032A CN 111739996 A CN111739996 A CN 111739996A
- Authority
- CN
- China
- Prior art keywords
- gold
- bowl
- silver alloy
- led chip
- shaped reflector
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910001316 Ag alloy Inorganic materials 0.000 title claims abstract description 46
- PQTCMBYFWMFIGM-UHFFFAOYSA-N gold silver Chemical compound [Ag].[Au] PQTCMBYFWMFIGM-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000002360 preparation method Methods 0.000 title abstract description 9
- 239000000843 powder Substances 0.000 claims abstract description 42
- 239000007864 aqueous solution Substances 0.000 claims abstract description 17
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical class [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000010931 gold Substances 0.000 claims abstract description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229920005989 resin Polymers 0.000 claims abstract description 12
- 239000011347 resin Substances 0.000 claims abstract description 12
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 12
- 239000010703 silicon Substances 0.000 claims abstract description 12
- 239000007787 solid Substances 0.000 claims abstract description 8
- 229910001020 Au alloy Inorganic materials 0.000 claims abstract description 5
- 238000006243 chemical reaction Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- 239000005022 packaging material Substances 0.000 claims abstract description 5
- 239000011248 coating agent Substances 0.000 claims abstract description 4
- 238000000576 coating method Methods 0.000 claims abstract description 4
- 238000011049 filling Methods 0.000 claims abstract description 4
- 238000004108 freeze drying Methods 0.000 claims abstract description 3
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 24
- RWSXRVCMGQZWBV-WDSKDSINSA-N glutathione Chemical compound OC(=O)[C@@H](N)CCC(=O)N[C@@H](CS)C(=O)NCC(O)=O RWSXRVCMGQZWBV-WDSKDSINSA-N 0.000 claims description 16
- SQGYOTSLMSWVJD-UHFFFAOYSA-N silver(1+) nitrate Chemical compound [Ag+].[O-]N(=O)=O SQGYOTSLMSWVJD-UHFFFAOYSA-N 0.000 claims description 16
- 229910052737 gold Inorganic materials 0.000 claims description 10
- 238000002156 mixing Methods 0.000 claims description 10
- 239000000203 mixture Substances 0.000 claims description 10
- 238000003756 stirring Methods 0.000 claims description 9
- 108010024636 Glutathione Proteins 0.000 claims description 8
- 239000002253 acid Substances 0.000 claims description 8
- 229960003180 glutathione Drugs 0.000 claims description 8
- 229910001961 silver nitrate Inorganic materials 0.000 claims description 8
- 239000012212 insulator Substances 0.000 claims description 7
- 229920002050 silicone resin Polymers 0.000 claims description 7
- 238000001723 curing Methods 0.000 claims description 6
- 239000011259 mixed solution Substances 0.000 claims description 6
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 230000035484 reaction time Effects 0.000 claims description 4
- 239000012488 sample solution Substances 0.000 claims description 4
- 239000003292 glue Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 3
- 239000012498 ultrapure water Substances 0.000 claims description 3
- 238000003466 welding Methods 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 239000000243 solution Substances 0.000 abstract description 2
- 238000009877 rendering Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 4
- 230000007547 defect Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910002704 AlGaN Inorganic materials 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 150000003378 silver Chemical class 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 241000218202 Coptis Species 0.000 description 1
- 235000002991 Coptis groenlandica Nutrition 0.000 description 1
- CEAVCSNZRLGECG-UHFFFAOYSA-N [Si][Ag][Au] Chemical compound [Si][Ag][Au] CEAVCSNZRLGECG-UHFFFAOYSA-N 0.000 description 1
- 238000000149 argon plasma sintering Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000000295 emission spectrum Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000001748 luminescence spectrum Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000004062 sedimentation Methods 0.000 description 1
- 238000010532 solid phase synthesis reaction Methods 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/50—Wavelength conversion elements
- H01L33/501—Wavelength conversion elements characterised by the materials, e.g. binder
- H01L33/502—Wavelength conversion materials
- H01L33/504—Elements with two or more wavelength conversion materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2933/00—Details relating to devices covered by the group H01L33/00 but not provided for in its subgroups
- H01L2933/0008—Processes
- H01L2933/0033—Processes relating to semiconductor body packages
- H01L2933/0041—Processes relating to semiconductor body packages relating to wavelength conversion elements
Landscapes
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Power Engineering (AREA)
- Led Device Packages (AREA)
Abstract
A white light LED based on gold and silver alloy clusters and a preparation method thereof, the white light LED comprises an insulating base, a bowl-shaped reflector, an ultraviolet light LED chip and a lens, wherein the bowl-shaped reflector is arranged on the insulating base, a heat conducting fin is arranged between the bowl-shaped reflector and the insulating base, the ultraviolet light LED chip is fixed in the bowl-shaped reflector, the ultraviolet light LED chip is covered with gold and silver alloy clusters and blue light fluorescent powder, the lens is arranged outside the bowl-shaped reflector, and the lens is filled with a transparent silicon resin packaging material; the method comprises the steps of obtaining a gold-silver alloy cluster through mild reaction of an aqueous solution method, freeze-drying the solution to form solid powder, fixing an ultraviolet LED chip in a bowl-shaped reflector, coating the gold-silver alloy cluster and blue fluorescent powder on the ultraviolet LED chip layer by layer and solidifying, placing a lens outside the bowl-shaped reflector and filling transparent packaging materials. The invention is beneficial to improving the luminous efficiency, the use stability and the service life of the LED.
Description
Technical Field
The invention relates to a white light LED and a preparation method thereof, in particular to a white light LED which is manufactured by exciting a broad-spectrum orange-red gold-silver alloy cluster and blue light fluorescent powder to emit light by an ultraviolet LED, and belongs to the technical field of semiconductor illumination.
Background
As a new generation solid light source, the semiconductor LED has the advantages of energy saving, environmental protection, firmness, durability, high energy density, small volume and the like, has been widely applied to the fields of liquid crystal display backlight sources, large color display screens, landscape lighting, automotive lamps, landscape decoration and the like, and is a research hotspot in the fields of photoelectron, lighting and the like.
The common preparation method of the white light LED comprises the combination of ultraviolet light LED excitation fluorescent powder, blue light LED excitation fluorescent powder and red, green and blue three-color LED chips, and various methods generate multicolor light to be mixed to form white light, wherein the ultraviolet light LED excitation fluorescent powder, the blue light LED excitation fluorescent powder and the red, green and blue three-color LED chips are the important technical scheme for obtaining the white light LED at present. For example, the AlGaN ultraviolet LED chip is used for exciting red light/green light/blue light fluorescent powder to form tricolor white light, and the defect is that the fluorescent efficiency of the red light fluorescent powder is not high, so that the luminous efficiency of the white light LED is not high; or the AlGaN ultraviolet LED chip excites the blue light and the yellow fluorescent powder to form two-primary-color white light, and the defect is that the fluorescent spectrum of the yellow fluorescent powder lacks a red light wave band, so that the color rendering performance of the white LED is poor. The traditional fluorescent powder has the following defects: (1) the high-temperature solid phase method is adopted for synthesis, the reaction temperature is high, and the energy consumption and the cost are high; (2) the fluorescent powder material is micron or dozens of micron solid opaque particles, so that the problem of light scattering and light blocking is serious, and the light is not uniform; (3) the fluorescent powder is dispersed in the white light LED packaging adhesive in a suspension form, and the problem of sedimentation exists, so that the fluorescent powder is not uniformly coated, and the light emission is not uniform.
Therefore, a new fluorescent conversion material with a wide spectrum, a small particle size, low cost, high efficiency, good stability and easy uniform dispersion needs to be developed to prepare a white light LED, and the problems and deficiencies in the prior art are solved by completely or partially replacing the conventional fluorescent powder.
Disclosure of Invention
Aiming at the problems in the prior white light LED technology, the invention provides a white light LED which is manufactured by exciting an orange-red gold-silver alloy cluster and blue fluorescent powder to emit light by an ultraviolet LED, so as to solve the problems of low color rendering property, narrow color gamut, poor stability and the like of the conventional white light LED. The invention also provides a preparation method of the white light LED.
The invention discloses a gold-silver alloy cluster-based white light LED, which adopts the following technical scheme:
this white light LED, including insulator foot, bowl shape speculum, ultraviolet ray LED chip and lens, bowl shape speculum sets up on insulator foot, be the conducting strip between bowl shape speculum and the insulator foot, ultraviolet ray LED chip is fixed in bowl shape speculum, the ultraviolet ray LED chip coats and is stamped the silicone resin that is dispersing gold and silver alloy cluster and blue light phosphor powder, be provided with two electrodes of being connected with ultraviolet ray LED chip on the insulator foot, the outside of bowl shape speculum is covered with lens, pack transparent silicone resin packaging material in the lens, with electrode, bowl shape speculum, gold and silver alloy cluster, blue light phosphor powder and ultraviolet ray LED chip parcel on insulator foot.
The emission wavelength of the ultraviolet LED chip is 350nm-420 nm.
The silicon-gold-silver alloy cluster is prepared by uniformly stirring and fully mixing a glutathione aqueous solution, a chloroauric acid aqueous solution, a silver nitrate aqueous solution and a sodium hydroxide aqueous solution, carrying out mild stirring and reacting at constant temperature, and freeze-drying a sample solution to obtain gold-silver alloy cluster solid powder; the gold-silver alloy cluster is a stable luminescent material with the diameter of about 2nm and uniform size. The gold-silver alloy cluster has lower reaction temperature, and has the advantages of low preparation temperature, short reaction time and the like compared with the traditional high-temperature production process of the fluorescent powder.
The emission peak wavelength of the gold-silver alloy cluster is near 600nm, the spectral range is wide, yellow-green, yellow, orange and red are covered, the orange-red gold-silver alloy cluster and blue fluorescent powder in different proportions are excited by the ultraviolet LED, and white LEDs with different colors, chromatic values, color temperatures and color rendering indexes can be obtained.
The preparation method of the white light LED comprises the following steps:
(1) preparing a gold-silver alloy cluster: 2-10mL (100 mM) of glutathione aqueous solution, 2-12mL of chloroauric acid (50 mM), 0.5-5mL of silver nitrate (20 mM) and 50-500mL of ultrapure water are fully stirred and uniformly mixed, then 0.1-5mL of sodium hydroxide (1M) is added and fully mixed for 5 minutes, the mixed solution is heated to 60-98 ℃, the mixed solution is reacted for 0.5-10 hours under the conditions of uniform mild stirring (200 plus 2000rpm) and constant temperature of 60-98 ℃ to obtain the gold-silver alloy cluster aqueous solution emitting orange red, and finally, the sample solution is frozen and dried into the gold-silver alloy cluster solid powder. The emission wavelength of the gold-silver alloy cluster can be controlled by controlling the proportion and the dosage of the glutathione aqueous solution, the chloroauric acid, the silver nitrate and the sodium hydroxide and the reaction time;
(2) fixing a heat conducting sheet on the insulating base, and fixing the bowl-shaped reflector on the heat conducting sheet;
(3) fixing an ultraviolet LED chip with the emission wavelength of 350nm-420nm in a bowl-shaped reflector, respectively placing two electrodes on two sides of an insulating base, and respectively welding a P electrode and an N electrode of the ultraviolet LED chip together through gold wires;
(4) fully stirring and uniformly mixing 0.1-0.2 g of the gold-silver alloy cluster prepared in the step (1) and 0.05-0.2 g of blue-light fluorescent powder, uniformly mixing the powder mixture with a silicone resin A/B adhesive, coating the mixture on a fixed blue-light LED chip connected with an electrode, and naturally curing at 25 ℃ at normal temperature;
(5) fixing a lens outside the bowl-shaped reflector, wrapping connection points of two electrodes and gold wires, the bowl-shaped reflector, a gold-silver alloy cluster/blue light fluorescent powder/silicon resin mixture and an ultraviolet LED chip on an insulating base, filling transparent silicon resin A/B glue in the lens, uniformly mixing and packaging, and curing the silicon resin to obtain the white light LED.
The invention utilizes the ultraviolet light LED to excite the gold-silver alloy cluster to emit light, solves the problems of low color rendering property, narrow color gamut, poor stability and the like in the prior LED lighting technology, and is beneficial to improving the luminous efficiency, the use stability and the service life of the LED.
Drawings
Fig. 1 is a schematic structural diagram of a white light LED which is formed by exciting a gold-silver alloy cluster to emit light by using an ultraviolet light LED.
FIG. 2 is a graph of the luminescence spectrum of a white LED prepared according to the present invention.
FIG. 3 is a chromaticity coordinate diagram of a white LED prepared according to the present invention.
Wherein: 1. the LED lamp comprises an insulating base, 2 parts of a heat conducting pad, 3 parts of a bowl-shaped reflector, 4 parts of an ultraviolet LED chip, 5 parts of a positive electrode, 6 parts of a negative electrode, 7 parts of a gold thread, 8 parts of an orange-red gold-silver alloy cluster, 9 parts of blue-light fluorescent powder, 10 parts of silicone resin, 11 parts of a lens.
Detailed Description
As shown in fig. 1, the white LED with gold-silver alloy clusters excited by ultraviolet light to emit light comprises an insulating base 1, a heat conducting pad 2, a bowl-shaped reflector 3, an ultraviolet LED chip 4, a positive electrode 5, a negative electrode 6, gold wires 7, orange-red gold-silver alloy clusters 8, blue fluorescent powder 9, silicone resin 10 and a lens 11; the heat conducting pad 2 is connected with the bowl-shaped reflector 3 and is arranged in the center of the insulating base 1, the ultraviolet LED chip 4 is fixed in the center of the bowl-shaped reflector 3, the positive electrode 5 and the negative electrode 6 are arranged on two sides of the insulating base 1 and are connected with the P electrode and the N electrode of the ultraviolet LED chip 4 through gold wires 7, the orange red gold-silver alloy cluster layer 8 and the blue light fluorescent powder layer 9 are coated on the ultraviolet LED chip 4, the insulating base is covered with the lens 11, and high-transmittance silicon resin packaging materials 10 are filled between the insulating base and the lens. Wherein the emission wavelength of the ultraviolet LED chip 5 is 350nm-420 nm.
The preparation method of the white light LED comprises the following steps:
(1) preparing a gold-silver alloy cluster 8: 5mL (100 mM) of glutathione aqueous solution, 5mL of chloroauric acid (50 mM), 1.5mL of silver nitrate (20 mM) and 150mL of ultrapure water are fully and uniformly stirred and mixed, 0.6mL of sodium hydroxide (1M) is added and fully mixed for 5 minutes, the mixed solution is heated to 80 ℃, the mixed solution is uniformly and gently stirred (600rpm) and reacts for 3.5 hours at 80 ℃ constant temperature condition, the water solution of the gold and silver clusters emitting orange red is obtained, and finally, the sample solution is frozen and dried into the solid powder of the gold and silver clusters 8. By controlling the proportion and the dosage of the glutathione aqueous solution, the chloroauric acid, the silver nitrate and the sodium hydroxide and the reaction time, the emission wavelength of the gold-silver alloy cluster 8 can be controlled;
(2) a heat conducting fin 2 is fixed on an insulating base 1, a bowl-shaped reflector 3 is fixed on the heat conducting fin 2,
(3) an ultraviolet LED chip 4 with the emission wavelength of 370nm is fixed in a bowl-shaped reflector 3, a positive electrode 5 and a negative electrode 6 are respectively arranged on two sides of an insulating base 1 and are respectively welded with a P electrode and an N electrode of the ultraviolet LED chip 4 through gold wires 7.
(4) Fully stirring and uniformly mixing 0.1g of the gold-silver alloy cluster 8 prepared in the step (1) and 0.08g of blue-light fluorescent powder 9, uniformly mixing the powder uniform mixture with a silicone resin A/B adhesive 10, coating the mixture on a fixed ultraviolet LED chip 4 connected with an electrode, and naturally curing at the normal temperature of 25 ℃;
(5) fixing a lens 11 on an insulating substrate 1, exhausting air in the lens 11, filling high-light-transmission silicon resin 10A/B mixed glue, and naturally curing for 5 hours at normal temperature to obtain the white light LED, wherein the silicon resin 10 protects a bowl-shaped reflector 3, a blue light LED chip 4, gold wires 7, a gold-silver alloy cluster 8 layer and a blue light fluorescent powder 9 layer between the lens 11 and the insulating substrate 1.
The emission spectrum and chromaticity coordinate of the white light LED obtained by adopting the ultraviolet LED chip with the emission wavelength of 370nm, the orange-red gold-silver alloy cluster and the blue fluorescent powder are shown in figures 2 and 3, the color rendering index of the white light LED reaches 88.4, the chromaticity coordinates (0.33 and 0.32) and the lumen efficiency is 3.3 lm/W.
Claims (2)
1. The utility model provides a white light LED based on gold and silver alloy cluster, includes insulator foot, bowl shape speculum, ultraviolet ray LED chip and lens, and bowl shape speculum setting is characterized by on insulator foot: the bowl-shaped reflector is arranged on the insulating base, the heat conducting sheet is arranged between the bowl-shaped reflector and the insulating base, the ultraviolet LED chip is fixed in the bowl-shaped reflector, the gold-silver alloy cluster/blue light fluorescent powder/silicon resin mixture covers the ultraviolet LED chip, the insulating base is provided with two electrodes connected with the ultraviolet LED chip, the outside of the bowl-shaped reflector is provided with a lens, the lens is filled with a transparent packaging material, and the electrode bonding wire, the bowl-shaped reflector, the gold-silver alloy cluster/blue light fluorescent powder/silicon resin mixture and the ultraviolet LED chip are wrapped on the insulating base. The emission wavelength of the ultraviolet LED chip is 350nm-420 nm. The gold-silver alloy cluster is prepared by uniformly stirring and fully mixing a glutathione aqueous solution, a chloroauric acid aqueous solution, a silver nitrate aqueous solution and a sodium hydroxide aqueous solution, carrying out mild stirring and reaction at constant temperature to obtain the gold-silver alloy cluster, and finally carrying out freeze drying to obtain solid powder.
2. The method for preparing the gold-silver alloy cluster-based white light LED as claimed in claim 1, which is characterized in that: the method comprises the following steps:
(1) preparing a gold-silver alloy cluster: 2-10mL (100 mM) of glutathione aqueous solution, 2-12mL of chloroauric acid (50 mM), 0.5-5mL of silver nitrate (20 mM) and 50-500mL of ultrapure water are fully stirred and uniformly mixed, then 0.1-5mL of sodium hydroxide (1M) is added and fully mixed for 5 minutes, the mixed solution is heated to 60-98 ℃, the mixed solution is reacted for 0.5-10 hours under the conditions of uniform mild stirring (200 plus 2000rpm) and constant temperature of 60-98 ℃ to obtain the gold-silver alloy cluster aqueous solution emitting orange red, and finally, the sample solution is frozen and dried into the gold-silver alloy cluster solid powder. The emission wavelength of the gold-silver alloy cluster can be controlled by controlling the proportion and the dosage of the glutathione aqueous solution, the chloroauric acid, the silver nitrate and the sodium hydroxide and the reaction time;
(2) fixing a heat conducting sheet on the insulating base, and fixing the bowl-shaped reflector on the heat conducting sheet;
(3) fixing an ultraviolet LED chip with the emission wavelength of 350nm-420nm in a bowl-shaped reflector, respectively placing two electrodes on two sides of an insulating base, and respectively welding a P electrode and an N electrode of the ultraviolet LED chip together through gold wires;
(4) fully stirring and uniformly mixing 0.1-0.2 g of the gold-silver alloy cluster prepared in the step (1) and 0.05-0.2 g of blue-light fluorescent powder, uniformly mixing the powder mixture with a silicone resin A/B adhesive, coating the mixture on a fixed blue-light LED chip connected with an electrode, and naturally curing at 25 ℃ at normal temperature;
(5) fixing a lens outside the bowl-shaped reflector, wrapping connection points of two electrodes and gold wires, the bowl-shaped reflector, a gold-silver alloy cluster/blue light fluorescent powder/silicon resin mixture and an ultraviolet LED chip on an insulating base, filling transparent silicon resin A/B glue in the lens, uniformly mixing and packaging, and curing the silicon resin to obtain the white light LED.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010630032.5A CN111739996A (en) | 2020-07-03 | 2020-07-03 | White light LED based on gold-silver alloy cluster and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010630032.5A CN111739996A (en) | 2020-07-03 | 2020-07-03 | White light LED based on gold-silver alloy cluster and preparation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111739996A true CN111739996A (en) | 2020-10-02 |
Family
ID=72652707
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010630032.5A Pending CN111739996A (en) | 2020-07-03 | 2020-07-03 | White light LED based on gold-silver alloy cluster and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111739996A (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007070115A1 (en) * | 2005-12-15 | 2007-06-21 | Kimberly-Clark Worldwide, Inc. | Luminescent metallic cluster particles and uses thereof |
| CN101743290A (en) * | 2007-07-09 | 2010-06-16 | 鲁汶天主教大学 | emissive lamps comprising metal clusters confined in molecular sieves |
| CN102596841A (en) * | 2009-10-27 | 2012-07-18 | 学校法人东京理科大学 | Light-emitting glass, light-emitting device equipped with the light-emitting glass, and process for producing light-emitting glass |
| US20120238035A1 (en) * | 2011-03-18 | 2012-09-20 | Geddes Chris D | Multicolor microwave-accelerated metal-enhanced fluorescence (m-mamef) |
| CN103066188A (en) * | 2013-01-28 | 2013-04-24 | 山东大学 | White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof |
| CN103314073A (en) * | 2010-12-30 | 2013-09-18 | 印度马德拉斯理工学院 | Gold and silver quantum clusters and methods for their preparation and use |
| CN105382269A (en) * | 2015-11-09 | 2016-03-09 | 东南大学 | Method for preparing water-soluble light-emitting gold nanoclusters based on substitution method and aggregation inducement |
| CN106995693A (en) * | 2017-04-01 | 2017-08-01 | 西南政法大学 | Show the method for finger mark using fluorescence magnetic noble-metal nanoclusters core-shell particles |
| CN109834262A (en) * | 2017-11-29 | 2019-06-04 | 中国科学院大连化学物理研究所 | The controllable Au of a kind of atom number, size19Ag4The synthetic method of alloy nanocluster |
| CN110129484A (en) * | 2019-06-05 | 2019-08-16 | 济南大学 | A method of influenza A virus is detected based on Doré metal nanocluster enhancing fluorescence combination ring mediated isothermal amplification |
| CN110144207A (en) * | 2019-04-25 | 2019-08-20 | 云南大学 | A kind of method and application of photoinduction synthesis red fluorescence gold nanoclusters |
| CN110202128A (en) * | 2019-06-25 | 2019-09-06 | 重庆科技学院 | A kind of gold and silver composite Nano cluster, preparation process and the application in biological thiol detection |
| CN110862820A (en) * | 2019-10-23 | 2020-03-06 | 云南大学 | Preparation method and application of cysteine-gold nanocluster |
| CN111250726A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Synthesis of heterogeneous AuAg alloy nanocluster with controllable number of atoms and size |
-
2020
- 2020-07-03 CN CN202010630032.5A patent/CN111739996A/en active Pending
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2007070115A1 (en) * | 2005-12-15 | 2007-06-21 | Kimberly-Clark Worldwide, Inc. | Luminescent metallic cluster particles and uses thereof |
| CN101743290A (en) * | 2007-07-09 | 2010-06-16 | 鲁汶天主教大学 | emissive lamps comprising metal clusters confined in molecular sieves |
| CN102596841A (en) * | 2009-10-27 | 2012-07-18 | 学校法人东京理科大学 | Light-emitting glass, light-emitting device equipped with the light-emitting glass, and process for producing light-emitting glass |
| CN103314073A (en) * | 2010-12-30 | 2013-09-18 | 印度马德拉斯理工学院 | Gold and silver quantum clusters and methods for their preparation and use |
| US20120238035A1 (en) * | 2011-03-18 | 2012-09-20 | Geddes Chris D | Multicolor microwave-accelerated metal-enhanced fluorescence (m-mamef) |
| CN103066188A (en) * | 2013-01-28 | 2013-04-24 | 山东大学 | White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof |
| CN105382269A (en) * | 2015-11-09 | 2016-03-09 | 东南大学 | Method for preparing water-soluble light-emitting gold nanoclusters based on substitution method and aggregation inducement |
| CN106995693A (en) * | 2017-04-01 | 2017-08-01 | 西南政法大学 | Show the method for finger mark using fluorescence magnetic noble-metal nanoclusters core-shell particles |
| CN109834262A (en) * | 2017-11-29 | 2019-06-04 | 中国科学院大连化学物理研究所 | The controllable Au of a kind of atom number, size19Ag4The synthetic method of alloy nanocluster |
| CN111250726A (en) * | 2018-11-30 | 2020-06-09 | 中国科学院大连化学物理研究所 | Synthesis of heterogeneous AuAg alloy nanocluster with controllable number of atoms and size |
| CN110144207A (en) * | 2019-04-25 | 2019-08-20 | 云南大学 | A kind of method and application of photoinduction synthesis red fluorescence gold nanoclusters |
| CN110129484A (en) * | 2019-06-05 | 2019-08-16 | 济南大学 | A method of influenza A virus is detected based on Doré metal nanocluster enhancing fluorescence combination ring mediated isothermal amplification |
| CN110202128A (en) * | 2019-06-25 | 2019-09-06 | 重庆科技学院 | A kind of gold and silver composite Nano cluster, preparation process and the application in biological thiol detection |
| CN110862820A (en) * | 2019-10-23 | 2020-03-06 | 云南大学 | Preparation method and application of cysteine-gold nanocluster |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| WO2019109867A1 (en) | White led device and manufacturing method thereof, and led lamp | |
| CN103066188B (en) | White light LED (Light Emitting Diode) capable of lighting by triggering carbon points through blue light, and preparation method thereof | |
| CN103078047B (en) | Silane functionalized carbon-dot excited white light emitting diode (LED) and preparation method thereof | |
| CN101661987A (en) | White light LED packaging structure and packaging method thereof | |
| WO2012009918A1 (en) | White light source module using leds | |
| CN102339937A (en) | White light LED manufactured by quantum dot fluorescent powder and preparation method thereof | |
| CN106450011B (en) | Preparation method of high-apparent-index white light quantum dot LED based on visible light secondary excitation | |
| KR20160143571A (en) | Phosphor with preferred orientation, fabricating method thereof, and light-emitting element package structure employing the same | |
| TW200901502A (en) | Light emitting diode device and fabrication method thereof | |
| CN104868041A (en) | Full-carbon-based quantum dot mixed fluorescent powder LED and preparation method thereof | |
| CN101030610B (en) | Large-power light-emitting diodes and its fluorescent-powder coating method | |
| JP4425977B1 (en) | Nitride red phosphor and white light emitting diode using the same | |
| CN112271243A (en) | Dispensing structure and process for improving reliability of LED lamp beads | |
| KR101093575B1 (en) | Nitride red phosphors and white light emitting diode using rare-earth-co-doped nitride red phosphors | |
| CN101294693A (en) | Production method of white LED | |
| CN111739996A (en) | White light LED based on gold-silver alloy cluster and preparation method thereof | |
| CN201155720Y (en) | Single core quantum point white light LED illuminating device | |
| CN101232070A (en) | Illuminating device of single core quantum spot white light LED | |
| CN111739995A (en) | White light LED based on dual-waveband white light perovskite quantum dots and preparation method | |
| CN205211789U (en) | White light LED device based on no cadmium quantum dot phosphor powder | |
| CN111739997A (en) | White light LED (light emitting diode) capable of emitting light by exciting gold-silver alloy clusters through blue light and preparation method thereof | |
| AU2021100752A4 (en) | A Blue Light-Excited White LED Based on Luminescent Gold/Silver Alloy Nanoclusters and Its Preparation Method | |
| CN111739998A (en) | High-color-rendering white light LED based on silver clusters and preparation method thereof | |
| CN206040693U (en) | Blue light emitting diode wafer white light packaging hardware | |
| CN201246684Y (en) | LED illumination module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20201002 |