CN1324912A - Fluorescnet material to convert and combine blue light of LED into white light - Google Patents
Fluorescnet material to convert and combine blue light of LED into white light Download PDFInfo
- Publication number
- CN1324912A CN1324912A CN00114885A CN00114885A CN1324912A CN 1324912 A CN1324912 A CN 1324912A CN 00114885 A CN00114885 A CN 00114885A CN 00114885 A CN00114885 A CN 00114885A CN 1324912 A CN1324912 A CN 1324912A
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- CN
- China
- Prior art keywords
- fluorescent material
- sintering
- matrix
- photodiode
- light
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
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- Luminescent Compositions (AREA)
Abstract
The present invention rleates to a fluorescent material capable of converting blue light produced by light emitting diode into white light. It is formed from sulfide as matrix, activating agent for the said matrix and co-activator, and its preparation includes the following steps: mixing the above-mentioned materials uniformly according to a certain proportion, sintering at high temp. under the condition or sulfur of sulfohydrogen gas protection, soaking sintered material in ammonina water, further soaking in hydrochloric acid, washing to neutrality, and then drying so as to obtain the invented fluorescent material which can be coated on the light emitting diode, and can convert its blue light into white light. It is low in cost, simple in technological process, and can be used as various light sources.
Description
The invention belongs to luminous and the technique of display field, relate to a kind of synthetic white luminous fluorescent material of blue streak conversion group that photodiode can be produced.
Because the fast development of semiconductor technology, can send out the LED device of blue streak and semiconductor laser suitability for industrialized production in a large number, and cost and market value are in continuous decline.Reported LED device on the applicating physical magazine 97.66 volume p437 of prior art Japan, its matrix adopts oxide compound, also can be by the formulated white light that sends of the luminotron of red, blue, green three colors, its cost is higher when being used for indicating meter, secondary light source, lighting source.
The present invention provides the synthetic white luminous fluorescent material of blue streak conversion group that a kind of cost is lower, photodiode can be produced in order to overcome the problem of prior art.
Fluorescent material matrix of the present invention adopts sulfide to be: ZnS, CdS, CaS, SrS, La
2S
3, Lu
2S
3, Y
2O
2Among the S one or more, the activator that composition matrix adopts is: contain in the compound of Au, Ag, Cu, Mn, Ce one or more, coactivator is adopted as: contain in the compound of Al, Mg, In, Ga, Eu, Dy, Gd, Tb, Er, Sm, Nd one or more, above-mentioned materials adds and mixing by a certain percentage, at 800 ℃--under 1300 ℃ the high temperature sintering 1--3 hour, and in sintering, have the atmosphere protection of sulphur or hydrogen sulfide; Material behind the sintering was soaked 30 minutes with 30% ammoniacal liquor, and the salt acid soak with 20% 30 minutes is washed to drying after the neutrality with clear water again, has both made the blue streak conversion group that photodiode can be produced and synthesize white luminous fluorescent material.Activator is incorporated as 1 * 10 of matrix weight among the present invention
-5-5 * 10
-1, coactivator 1 * 10
-6-5 * 10
-2, both adding forms can be CuBr, AgCl
3, EuCl
2, Al (NO
2)
3, DyBr, CeO
2Or the like.`
Fluorescent material granularity of the present invention is at 3-15 μ m, under excitation light irradiation at 400-500nm, can produce the emission light of 500-700nm, in general this material body colour is yellow, when fluorescent material of the present invention being coated on the LED core of blue look, during photodiode work, can produce white luminous after the blue streak conversion of fluorescent material of the present invention and photodiode and the combination.
Fluorescent material of the present invention is coated on a photodiode, produces blue streak conversion and combination back white luminous.LED device is white luminous by the formulated generation of the luminotron of red, blue, green three colors in the prior art, the invention enables the high problem of white light emitting diode device cost to be solved.The white light emitting diode device advantage of making of method of the present invention is that cost is low, technology is simple, luminous efficiency is high, can be used for lighting source and secondary light source in a large number.
Embodiments of the invention:
Embodiment one: with ZnS 10g, CdS 3g, AgCl 1 * 10
-3, MgCl 1 * 10
-51200 ℃ of sintering temperatures one hour, use the sulphur atmosphere protection during sintering, and in acid, alkali, handle, clean to neutral, oven dry and promptly can be made into fluorescent material of the present invention.
Embodiment two: CaS 100g is added CeO
20.5g fully grind, mixing, sintering is two hours under 1100 ℃ of temperature, in the sulphur atmosphere, and handles in acid, alkali, cleans to neutral, oven dry and promptly can be made into fluorescent material of the present invention.
Embodiment three: with La
2S
310g, adding CeO
30.03g, add Dy
2O
30.005g sintering is three hours under 1000 ℃ of temperature, in the sulphur atmosphere, and handles in acid, alkali, cleans to neutral, oven dry and promptly can be made into fluorescent material of the present invention.
The sulfide substrate material that relates among the present invention can be buied in market, also can be that high temperature is synthetic, or adopt La
2O
3, Y
2O
3Sintering can form the sulfide substrate material in sulphur atmosphere.Activator and coactivator can be buied in market.
Claims (3)
1, a kind of synthetic white luminous fluorescent material of blue streak conversion group that photodiode is produced, it is characterized in that: matrix is sulfide: ZnS, CdS, CaS, SrS, La
2S
3, Lu
2S
3, Y
2O
2Among the S one or more, the activator that composition matrix adopts is: contain in Au, Ag, Cu, Mn, the Ce compound one or more, coactivator is adopted as: contain in Al, Mg, In, Ga, Eu, Dy, Gd, Tb, Er, Sm, the Nd compound one or more, above-mentioned materials adds and mixing by a certain percentage, at 800 ℃--under 1300 ℃ the high temperature sintering 1--3 hour, and in sintering, have the atmosphere protection of sulphur or sulphur hydrogen; Material behind the sintering was soaked 30 minutes with 30% ammoniacal liquor, and the salt acid soak with 20% 30 minutes is washed with clear water and had both been made the blue streak conversion group that photodiode can be produced for oven dry after the neutrality and synthesize white luminous fluorescent material.
2, fluorescent material according to claim 1 is characterized in that: activator is incorporated as 1 * 10 of matrix weight
-5-5 * 10
-1, coactivator 1 * 10
-6-5 * 10
-2
3, fluorescent material according to claim 2 is characterized in that: under the excitation light irradiation of 400-500nm, produce the emission light of 500-700nm, and with the blue streak conversion of photodiode and combination after make white light emitting diode device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00114885A CN1324912A (en) | 2000-05-19 | 2000-05-19 | Fluorescnet material to convert and combine blue light of LED into white light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN00114885A CN1324912A (en) | 2000-05-19 | 2000-05-19 | Fluorescnet material to convert and combine blue light of LED into white light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1324912A true CN1324912A (en) | 2001-12-05 |
Family
ID=4584365
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN00114885A Pending CN1324912A (en) | 2000-05-19 | 2000-05-19 | Fluorescnet material to convert and combine blue light of LED into white light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1324912A (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1297630C (en) * | 2004-06-01 | 2007-01-31 | 东北师范大学 | Antifogery rare earth luminescent materials and preparing method thereof |
| CN100385690C (en) * | 2004-07-08 | 2008-04-30 | 光宝科技股份有限公司 | White light illuminating method and apparatus capable of regulating colour temp. |
| CN100395618C (en) * | 2004-12-25 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Metal complex, light source and backlight module |
| CN100420728C (en) * | 2005-08-22 | 2008-09-24 | 中国科学院长春光学精密机械与物理研究所 | Method for converting rare-earth triple primary-color material into white light by bluish violet diode |
| CN101402862B (en) * | 2008-11-10 | 2011-07-27 | 潍坊大耀新材料有限公司 | Producing process for zinc sulfide long-afterglow luminescent powder |
| CN101519590B (en) * | 2009-03-27 | 2012-04-04 | 中国地质大学（武汉） | Blue phosphor powder taking Y2O2S as a substrate and method for preparing same |
| CN103627387A (en) * | 2013-12-23 | 2014-03-12 | 淮海工学院 | High-brightness ultra-long red long afterglow phosphor material and preparation method thereof |
| CN103740362A (en) * | 2014-02-05 | 2014-04-23 | 上海科炎光电技术有限公司 | Orange luminescent material for infrared laser detection and preparation thereof |
| CN103805201A (en) * | 2014-02-05 | 2014-05-21 | 上海科炎光电技术有限公司 | Red electroluminescence material for detecting infrared laser and preparation method thereof |
| CN101752493B (en) * | 2002-12-20 | 2014-11-26 | 丰田合成株式会社 | Phosphor and optical device using the same |
| CN104531141A (en) * | 2014-12-16 | 2015-04-22 | 南京化工职业技术学院 | Microwave aqueous phase preparation method of cerium and erbium co-doped ZnS quantum dot |
-
2000
- 2000-05-19 CN CN00114885A patent/CN1324912A/en active Pending
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101752493B (en) * | 2002-12-20 | 2014-11-26 | 丰田合成株式会社 | Phosphor and optical device using the same |
| CN1297630C (en) * | 2004-06-01 | 2007-01-31 | 东北师范大学 | Antifogery rare earth luminescent materials and preparing method thereof |
| CN100385690C (en) * | 2004-07-08 | 2008-04-30 | 光宝科技股份有限公司 | White light illuminating method and apparatus capable of regulating colour temp. |
| CN100395618C (en) * | 2004-12-25 | 2008-06-18 | 鸿富锦精密工业（深圳）有限公司 | Metal complex, light source and backlight module |
| CN100420728C (en) * | 2005-08-22 | 2008-09-24 | 中国科学院长春光学精密机械与物理研究所 | Method for converting rare-earth triple primary-color material into white light by bluish violet diode |
| CN101402862B (en) * | 2008-11-10 | 2011-07-27 | 潍坊大耀新材料有限公司 | Producing process for zinc sulfide long-afterglow luminescent powder |
| CN101519590B (en) * | 2009-03-27 | 2012-04-04 | 中国地质大学（武汉） | Blue phosphor powder taking Y2O2S as a substrate and method for preparing same |
| CN103627387A (en) * | 2013-12-23 | 2014-03-12 | 淮海工学院 | High-brightness ultra-long red long afterglow phosphor material and preparation method thereof |
| CN103627387B (en) * | 2013-12-23 | 2015-12-30 | 淮海工学院 | High brightness overlength red long afterglow luminous material and preparation method thereof |
| CN103740362A (en) * | 2014-02-05 | 2014-04-23 | 上海科炎光电技术有限公司 | Orange luminescent material for infrared laser detection and preparation thereof |
| CN103805201A (en) * | 2014-02-05 | 2014-05-21 | 上海科炎光电技术有限公司 | Red electroluminescence material for detecting infrared laser and preparation method thereof |
| CN103805201B (en) * | 2014-02-05 | 2015-08-12 | 上海科炎光电技术有限公司 | A kind of red electroluminescent materials and preparation detecting infrared laser |
| CN103740362B (en) * | 2014-02-05 | 2015-08-12 | 上海科炎光电技术有限公司 | A kind of orange light emitting materials for infrared laser detecting and preparation |
| CN104531141A (en) * | 2014-12-16 | 2015-04-22 | 南京化工职业技术学院 | Microwave aqueous phase preparation method of cerium and erbium co-doped ZnS quantum dot |
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