WO2003102113A1 - Leuchtstoffpulver, verfahren zum herstellen des leuchtstoffpulvers und leuchtstoffkörper mit dem leuchtstoffpulver - Google Patents
Leuchtstoffpulver, verfahren zum herstellen des leuchtstoffpulvers und leuchtstoffkörper mit dem leuchtstoffpulver Download PDFInfo
- Publication number
- WO2003102113A1 WO2003102113A1 PCT/DE2003/001749 DE0301749W WO03102113A1 WO 2003102113 A1 WO2003102113 A1 WO 2003102113A1 DE 0301749 W DE0301749 W DE 0301749W WO 03102113 A1 WO03102113 A1 WO 03102113A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- phosphor
- particles
- primary particles
- phosphor powder
- primary
- Prior art date
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/77—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7774—Aluminates
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/26—Layer connectors, e.g. plate connectors, solder or adhesive layers; Manufacturing methods related thereto
- H01L2224/31—Structure, shape, material or disposition of the layer connectors after the connecting process
- H01L2224/32—Structure, shape, material or disposition of the layer connectors after the connecting process of an individual layer connector
- H01L2224/321—Disposition
- H01L2224/32151—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/32221—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/32245—Disposition the layer connector connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/4805—Shape
- H01L2224/4809—Loop shape
- H01L2224/48091—Arched
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48151—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive
- H01L2224/48221—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked
- H01L2224/48245—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic
- H01L2224/48247—Connecting between a semiconductor or solid-state body and an item not being a semiconductor or solid-state body, e.g. chip-to-substrate, chip-to-passive the body and the item being stacked the item being metallic connecting the wire to a bond pad of the item
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L2224/00—Indexing scheme for arrangements for connecting or disconnecting semiconductor or solid-state bodies and methods related thereto as covered by H01L24/00
- H01L2224/73—Means for bonding being of different types provided for in two or more of groups H01L2224/10, H01L2224/18, H01L2224/26, H01L2224/34, H01L2224/42, H01L2224/50, H01L2224/63, H01L2224/71
- H01L2224/732—Location after the connecting process
- H01L2224/73251—Location after the connecting process on different surfaces
- H01L2224/73265—Layer and wire connectors
Definitions
- Luminescent phosphor method for producing the phosphor powder and phosphor body with the phosphor powder
- the invention relates to a phosphor powder which has phosphor particles with a mean phosphor particle size selected from the range from 0.1 ⁇ m to 5.0 ⁇ m.
- a method for producing the phosphor powder and a phosphor body with the phosphor powder are specified.
- the phosphor particles have an average phosphor particle size of at least 1 ⁇ m.
- the phosphor particles consist of a chromium-doped yttrium aluminum garnet (Y 3 Al 5 0 ⁇ 2 ). Chromium, for example, contains 0.5 mol%. Chromium is an optically active component of the garnet. Chromium absorbs
- Electrons are stimulated to luminescence.
- the known phosphor powder is used in a fluorescent screen (phosphor body) of a cathode ray tube.
- the known phosphor is produced using what is known as heterogeneous precipitation. To do this
- the suspensions and the solution are then mixed together and heated to 80-90 ° C. for one hour.
- the precipitate obtained is washed with distilled water and isopropanol, centrifuged and dried at 120 ° C. overnight.
- the powder obtained is calcined at 900 ° C - 1700 ° C in the presence of air for two hours.
- a chromium-doped yttrium-aluminum garnet is obtained which has a relatively high luminescence efficiency.
- the phosphor powder produced with this process consists of phosphor particles, each of which has a layer that is a few tenths of a ⁇ m thick and that does not contribute to luminescence (dead layer), the phosphor particles must have an average phosphor particle size of at least 1 ⁇ m for the high luminescence efficiency.
- a typical diameter of the phosphor particles is 1 ⁇ m on average.
- manufacturing parameters of the method have to be set very precisely so that the resulting phosphor powder has the high luminescence efficiency.
- the object of the present invention is therefore to provide a phosphor powder with a high luminescence efficiency and a simple and efficient method for its production. Another task is in particular to provide a highly efficient LED which uses phosphor powder for converting the primary radiation.
- a phosphor powder which has phosphor particles with a mean phosphor particle size selected from the range of 0.1 ⁇ m to 5.0 ⁇ m.
- the phosphor powder is characterized in that the phosphor particles have primary particles with an average primary particle size selected from the range from 0.1 ⁇ m to 1.5 ⁇ m.
- a preferred value for the lower limit is 0.2 ⁇ m, particularly preferably 0.5 ⁇ m.
- a preferred value for the upper limit is 1.0 ⁇ m.
- a method for producing a phosphor powder comprises the following steps: a) providing at least one precursor of the primary particles, b) generating the primary particles from the precursor of the primary particles and c) forming the phosphor particles of the phosphor powder from the primary particles.
- a phosphor body which has such a phosphor powder for converting an excitation light into an emission light.
- the emission light called luminescence
- the phosphor body can only consist of the phosphor powder. It is also conceivable that the phosphor powder is in a matrix of the phosphor body that is transparent to the excitation and emission light. Likewise, the phosphor powder can be applied as a layer on the phosphor body.
- the phosphor body is, for example, an LED (Light Emitting Diode) converter or a fluorescent screen of a cathode ray tube mentioned at the beginning.
- the phosphor particles are formed from small primary particles that contribute to the luminescence.
- the primary particles are separated, in another embodiment in the sense of an aggregate firmly connected to one another (secondary particles). Both forms may Form agglomerates.
- secondary particles Both forms may Form agglomerates.
- the primary particle diameter there is no problem that the phosphor particles have a more or less thick dead layer which does not contribute to the luminescence efficiency.
- the individual primary particles also have almost no dead layer.
- the phosphor particles preferably have a spherical (spherical) shape.
- the phosphor particles consist essentially, in particular at least 80%, of only the primary particles. This means that there are mostly no other particles that are different from the primary particles.
- the primary particles contribute to the luminescence efficiency of the phosphor powder.
- the primary particles can have different compositions.
- the primary particles can now essentially form a single phase. This means that the primary particles uniformly have a particularly desirable composition with the same (photo) physical properties.
- phase yttrium-aluminum-garnet in addition to the photophysically active phase yttrium-aluminum-garnet, other phases which do not contribute to the luminescence efficiency, actually are undesirable.
- Such phases have, for example, the compositions YA10 3 or A1 2 Y 4 0 9 .
- the primary particles preferably have a garnet.
- the garnet has in particular a composition A 3 B 5 0 ⁇ 2 , where A and B are trivalent metals.
- the garnet is preferably an yttrium aluminum garnet with the composition Y 3 A1 5 0 12 .
- the garnet obtains its phosphor properties from the fact that the garnet is doped.
- the primary particles therefore have at least one doping with a rare earth metal.
- the rare earth metal is selected in particular from the group cerium and / or gadolinium (Gd) and / or lanthanum (La) and / or terbium (Tb) and / or praseodymium (Pr) and / or europium (Eu).
- Pr and Eu are also particularly suitable for codoping, for example together with Ce.
- Further doping for example a transition metal doping with chromium (Cr), or mixtures of doping are also conceivable.
- the phosphor particles have pores with an average pore size selected from the range from 0.1 ⁇ m to 1.0 ⁇ m inclusive.
- the average pore size is approximately 0.5 ⁇ m. This results in one in particular Phosphor particle density of the phosphor particles, which is selected from the range from 40% to 70% inclusive of a theoretical density.
- the precursor is selected in particular from the group of metal hydroxide and / or metal oxide.
- metal hydroxide and / or metal oxide In the case of yttrium aluminum garnet, aluminum hydroxide and yttrium oxide are used, for example.
- the precursor is chemically precipitated from a metal salt solution of the metal salt.
- the metal salt is preferably selected from the group metal halide or metal sulfate.
- the metal halide is, for example, a metal chloride.
- An acidic metal salt solution and, for precipitation, a basic precipitation reagent are preferably used.
- the basic precipitation reagent in particular is added dropwise to the acidic metal salt solution or the acidic metal salt solution is added dropwise to the basic precipitation reagent.
- a sulfuric acid metal salt solution is used as the acidic metal salt solution.
- An ammonia solution is used in particular as the basic precipitation reagent. This is understood to mean a solution in which ammonia is directly dissolved in the solvent, for example water.
- a precursor of the ammonia is dissolved in the solvent with the release of ammonia.
- the precursor is, for example, urea. Ammonia is released by heating the urea.
- the preliminary stage in order to provide the preliminary stage, is ripened after the preliminary stage has been felled. There is an intensification during the ripening Crystal growth of the primary particles or for increased aggregation of the primary particles to form the phosphor particles.
- the ripening takes place in particular at a pH value of 5.5 to 6.5 inclusive.
- the ripening is carried out in particular at a ripening temperature which is selected from the range from 20 ° C. to 90 ° C. inclusive.
- calcining is carried out to produce the primary particles and / or to form the phosphor particles. Increased aggregation between the primary particles can occur during calcining.
- the calcining is carried out at a calcining temperature selected from the range of 1200 ° C to 1700 ° C inclusive. In particular, the calcination temperature is up to 1500 ° C.
- the (raw) phosphor particles obtained are additionally ground.
- Figure 1 illustrates' schematically a phosphor particle, which consists of a plurality of primary particles
- FIGS. 2a to 2c each show an SEM image of a phosphor powder
- Figure 3 shows a phosphor body with the phosphor powder (Figure 3a), and specifically an LED ( Figure 3b) with such an arrangement
- FIG. 4 shows a method for producing the phosphor powder
- FIG. 5 shows the reaction equations on which the method is based.
- the phosphor powder 1 consists of a multiplicity of phosphor particles 2 (FIGS. 1 and 2).
- the phosphor particles 2 have a spherical or at least essentially spherical shape 11. In particular, an arbitrarily oriented diameter does not deviate by more than 30% from the maximum diameter, see FIG. 1.
- the average phosphor particle diameter 3 of the phosphor particles is approximately 3 ⁇ m.
- the individual phosphor particles 2 each consist of an aggregate or also agglomerate 12 of a large number of primary particles 4.
- the primary particles have mean primary particle diameters 5 of approximately 0.5 ⁇ m.
- the phosphor particles 2 essentially consist only of the primary particles 4.
- the phosphor particles 2 have pores 6 with an average pore size 7 of approximately 0.5 ⁇ m. The pores 6 are open.
- the particle diameters mentioned are understood, for example, in the case of the primary particles, or in the case of rather smaller diameters, to be equivalent diameters by means of particle images recorded optically or electron microscopically (for example SEM) and in the case of the phosphor particles, or in the case of rather larger diameters, to be understood as the equivalent diameter from laser diffraction measurements.
- SEM optically or electron microscopically
- the two are different Methods for determining equivalent diameters provide similar to identical results for the same sample if the powder samples are optimally prepared for the measurement.
- the primary particles 4 consist of an yttrium aluminum garnet with the composition Y 3 Al 5 0 ⁇ 2nd
- the primary particles 4 are doped with the rare earth metal cerium. Cerium contains 0.5 mol%.
- the primary particles 4 form a single phase with the composition mentioned.
- a preliminary stage of the primary particles is first provided (FIGS. 4, 41).
- the precursor consists of a powder mixture of aluminum hydroxide (A1 (0H) 3 ) and yttrium hydroxide (Y (OH) 3 ).
- Al hydroxide and yttrium oxide are dissolved separately from one another in concentrated sulfuric acid (FIGS. 5, 51 and 52).
- the temperature is increased to accelerate the release.
- the two sulfuric acid metal salt solutions obtained are filtered.
- the concentration of aluminum or yttrium is determined in each case. Furthermore, the solutions are mixed with one another in accordance with the stoichiometric measurements required.
- the corresponding hydroxides are then precipitated with a basic ammonia solution (FIGS. 5, 53).
- the ammonia solution consists of ammonia (NH 3 ) dissolved in distilled water.
- the ammonia solution is added dropwise to the sulfuric acid solution of the metal salts.
- the resulting precipitate is washed with 10 ° C cold, distilled water. Since a certain amount of aluminum is washed out by the water, care must be taken when mixing the sulfuric acid metal salt solutions that aluminum is added in excess.
- the precipitate is filtered and dried at 150 ° C for ten hours. Furthermore, the precipitate is calcined in the presence of forming gas, which consists of 95 vol% nitrogen (N 2 ) and 5 vol% hydrogen (H 2 ) (FIGS.
- the Calcining takes place at 1200 ° C for about two hours.
- the primary particles are formed from the precursor (FIGS. 4, 42).
- the phosphor particles of the phosphor powder are formed by agglomerating the primary particles (FIGS. 4, 43). A phosphor powder with a high luminescence efficiency is obtained.
- the phosphor powder 1 is used in a phosphor body 10 (FIG. 3a in a schematic representation).
- the phosphor powder 1 is used in a phosphor body 10 (FIG. 3a in a schematic representation).
- the phosphor body 10 means above all a phosphor-containing one
- LEDs such as a conversion LED in particular.
- LEDs are also known under the term LUKOLED.
- Phosphor powder 1 becomes excitation light 8, ie light (or also short-wave radiation), which is primarily emitted by a chip, in part or in full in emission light
- a specific example of a phosphor body is the use of the phosphor powder in a white or colored LED together with an InGaN chip.
- the exemplary structure of such a light source is shown explicitly in FIG. 3b.
- the light source is a semiconductor component (chip 1) of the InGaN type with a peak emission wavelength of 460 nm (blue) with a first and second electrical connection 12, 13, which is embedded in an opaque basic housing 18 in the region of a recess 19.
- One of the connections 13 is connected to the chip 15 via a bonding wire 14.
- the recess has a wall 17 which serves as a reflector for the blue primary radiation of the chip 15.
- the recess 19 is filled with a potting compound 25, which contains, as main components, a silicone casting resin (or also epoxy casting resin) (80 to 90% by weight) and phosphor pigments 16 (less than 15% by weight). Other small proportions include methyl ether and Aerosil.
- the fluorescent pigments are yellow-emitting YAG: Ce according to the present invention or a mixture of two (or more) pigments which emit green and red.
- a suitable green-emitting phosphor is a Ce-doped yttrium garnet which, in addition to Al, also contains proportions of Ga and / or Sc at the lattice site of the aluminum.
- An example of a red-emitting phosphor is an Eu-containing nitride. In both cases, the secondary light of the phosphor mixes with the primary light of the chip to white.
- a colored LED is achieved, for example, by using a YAG: Eu as a phosphor for excitation by a UV-emitting chip.
- FIG. 6a shows, by way of example, that with many phosphors the scatter increases towards smaller particle diameters below 1 ⁇ m. It can typically increase by a factor of 5.
- a concrete example is a primary blue emitter Chip that is used together with a yellow-emitting phosphor. Both types of radiation then come from different areas of the room. To blur this impression,. Previously, even extra scattering filler particles had to be added to the encapsulation, which on the one hand is expensive and on the other hand tends to reduce efficiency.
- This structure is particularly important if more than one phosphor is used for partial conversion, for example in a system with blue primary radiation, which is partly converted from a green and partly from a red phosphor, in the sense of one based on the RGB mixing principle white LED.
- Typical maximum scattering occurs at 0.2 to 0.5 ⁇ m. the scattering intensity increases by a typical factor of 2 to 5 compared to a value of 1.5 ⁇ m. its value hardly changes towards large diameters (2 to 5 ⁇ m).
- FIG. 6b shows by way of example that the absorption increases towards smaller particle diameters D and passes through a more or less pronounced maximum at approximately 0.1 to 0.3 ⁇ m.
- the absorption here is sometimes more than 5 times greater than that of about 2 ⁇ m and at least twice that of l ⁇ m. If you choose the particle size in this range, the ratio of absorption: scattering to smaller particle diameters increases continuously from 2 ⁇ m down to 0.2 ⁇ m. This means a reduction in wastage and increased efficiency. You may take the increased scatter in purchase, but this results in a highly efficient LED with homogeneous radiation behavior. The higher scatter leads to a better and more homogeneous blue / yellow indicatrix.
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004510355A JP2005527692A (ja) | 2002-05-29 | 2003-05-28 | 蛍光体粉末、蛍光体粉末の製造方法及び蛍光体粉末を有する蛍光体ボディ |
US10/513,724 US7481951B2 (en) | 2002-05-29 | 2003-05-28 | Luminescent powder, method for producing the luminescent powder and luminescent body provided with luminescent powder |
DE10392603.8T DE10392603B4 (de) | 2002-05-29 | 2003-05-28 | Leuchtstoffpulver, Verfahren zum Herstellen des Leuchtstoffpulvers und Verwendung eines Leuchtstoffpulvers |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10223988.6 | 2002-05-29 | ||
DE10223988A DE10223988A1 (de) | 2002-05-29 | 2002-05-29 | Leuchtstoffpulver, Verfahren zum Herstellen des Leuchtstoffpulvers und Leuchtstoffkörper mit dem Leuchtstoffpulver |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003102113A1 true WO2003102113A1 (de) | 2003-12-11 |
Family
ID=29557395
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2003/001749 WO2003102113A1 (de) | 2002-05-29 | 2003-05-28 | Leuchtstoffpulver, verfahren zum herstellen des leuchtstoffpulvers und leuchtstoffkörper mit dem leuchtstoffpulver |
Country Status (4)
Country | Link |
---|---|
US (1) | US7481951B2 (de) |
JP (1) | JP2005527692A (de) |
DE (2) | DE10223988A1 (de) |
WO (1) | WO2003102113A1 (de) |
Cited By (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004106263A2 (fr) * | 2003-05-23 | 2004-12-09 | Rhodia Electronics And Catalysis | Composes precurseurs d'aluminates d'alcalino-terreux ou de terre rare, leur procede de preparation et leur utilisation comme precurseur de luminophore notamment |
JP2005353888A (ja) * | 2004-06-11 | 2005-12-22 | Stanley Electric Co Ltd | 発光素子 |
US7088038B2 (en) | 2003-07-02 | 2006-08-08 | Gelcore Llc | Green phosphor for general illumination applications |
US7094362B2 (en) | 2003-10-29 | 2006-08-22 | General Electric Company | Garnet phosphor materials having enhanced spectral characteristics |
US7126265B2 (en) | 2003-05-28 | 2006-10-24 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Conversion LED having a phosphor component based on an agglomeration of phosphor particles and pores |
EP1764402A1 (de) * | 2004-04-23 | 2007-03-21 | Sumitomo Chemical Company, Limited | Leuchtstoff |
US7252787B2 (en) | 2003-10-29 | 2007-08-07 | General Electric Company | Garnet phosphor materials having enhanced spectral characteristics |
US7329371B2 (en) | 2005-04-19 | 2008-02-12 | Lumination Llc | Red phosphor for LED based lighting |
US7442326B2 (en) | 2003-10-29 | 2008-10-28 | Lumination Llc | Red garnet phosphors for use in LEDs |
US7648649B2 (en) | 2005-02-02 | 2010-01-19 | Lumination Llc | Red line emitting phosphors for use in led applications |
US7847309B2 (en) | 2007-07-16 | 2010-12-07 | GE Lighting Solutions, LLC | Red line emitting complex fluoride phosphors activated with Mn4+ |
EP2814072A1 (de) * | 2013-06-12 | 2014-12-17 | Shin-Etsu Chemical Co., Ltd. | Lichtemittierende Vorrichtung |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP5205724B2 (ja) * | 2006-08-04 | 2013-06-05 | 日亜化学工業株式会社 | 発光装置 |
KR101421719B1 (ko) * | 2007-09-18 | 2014-07-30 | 삼성전자주식회사 | 금속 하이드록시 탄산염을 이용한 나노 형광체의 제조방법및 그로부터 제조된 나노 형광체 |
FR2943333B1 (fr) | 2009-03-20 | 2011-08-05 | Baikowski | Alumine, luminophores et composes mixtes ainsi que procedes de preparation associes |
TWI501926B (zh) * | 2010-07-23 | 2015-10-01 | Baikowski | 氧化鋁、發光團及混合化合物,以及相關製備方法 |
TWI583625B (zh) * | 2010-07-23 | 2017-05-21 | 貝柯夫斯基公司 | 氧化鋁、發光團及混合化合物,以及相關製備方法 |
US8865022B2 (en) | 2011-01-06 | 2014-10-21 | Shin-Etsu Chemical Co., Ltd. | Phosphor particles and making method |
US9617469B2 (en) * | 2011-01-06 | 2017-04-11 | Shin-Etsu Chemical Co., Ltd. | Phosphor particles, making method, and light-emitting diode |
KR20150100864A (ko) * | 2012-12-28 | 2015-09-02 | 신에쓰 가가꾸 고교 가부시끼가이샤 | 형광체 함유 수지 성형체, 발광 장치 및 수지 펠릿 |
JP6543492B2 (ja) * | 2015-03-20 | 2019-07-10 | 株式会社カネカ | Yag蛍光体の製造方法 |
DE102015113360A1 (de) * | 2015-08-13 | 2017-02-16 | Osram Opto Semiconductors Gmbh | Verfahren zur Herstellung eines Konversionselements |
JP6428813B2 (ja) * | 2017-03-13 | 2018-11-28 | 信越化学工業株式会社 | 発光装置 |
JP2019147968A (ja) * | 2019-06-13 | 2019-09-05 | 株式会社カネカ | Yag蛍光体用複合粒子、yag蛍光体及び発光装置 |
US10950773B1 (en) * | 2019-12-02 | 2021-03-16 | Bruce H Baretz | Light emitting diode devices |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001270775A (ja) * | 2000-03-27 | 2001-10-02 | National Institute For Materials Science | Yag透明焼結体の製造法 |
JP2002029742A (ja) * | 2000-07-21 | 2002-01-29 | Daiichi Kigensokagaku Kogyo Co Ltd | 希土類金属酸化物粉末及びその製造方法 |
EP1217057A2 (de) * | 2000-12-22 | 2002-06-26 | Sumitomo Chemical Company, Limited | Aluminat-Phosphor Herstellungsverfahren |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4034257A (en) * | 1975-06-05 | 1977-07-05 | General Electric Company | Mercury vapor lamp utilizing a combination of phosphor materials |
GB1589964A (en) * | 1976-09-03 | 1981-05-20 | Johnson Matthey Co Ltd | Luminescent materials |
GB1600492A (en) * | 1977-01-19 | 1981-10-14 | Johnson Matthey Co Ltd | Luminescent materials |
NL7809555A (nl) * | 1978-09-20 | 1980-03-24 | Philips Nv | Werkwijze voor het bereiden van een luminescerend alu- minaat. |
FR2469477A1 (fr) * | 1979-11-09 | 1981-05-22 | Rhone Poulenc Ind | Procede de fabrication de grenat polycristallin, grenat polycristallin et monocristal correspondant |
KR920010085B1 (ko) * | 1988-07-30 | 1992-11-14 | 소니 가부시기가이샤 | 이트륨 · 알루미늄 · 가넷미립자의 제조방법 |
FR2679242A1 (fr) * | 1991-07-19 | 1993-01-22 | Rhone Poulenc Chimie | Phosphate mixte de lanthane, terbium et cerium, procede de fabrication de ceux-ci a partir de sels insolubles de terres rares. |
JPH05294722A (ja) * | 1992-04-10 | 1993-11-09 | Kurosaki Refract Co Ltd | 固体レーザ用多結晶透明yagセラミックスの製造方法 |
FR2743555B1 (fr) * | 1996-01-17 | 1998-02-27 | Rhone Poulenc Chimie | Borate de terre rare et son precurseur, leurs procedes de preparation et l'utilisation du borate comme luminophore |
EP0985007B2 (de) * | 1997-02-24 | 2010-11-03 | Cabot Corporation | Sauerstoffhaltige phosphorpulver ,verfahren zur herstellung phosphorpulver und vorrichtungen damit |
JP3425582B2 (ja) * | 2000-04-14 | 2003-07-14 | Necエレクトロニクス株式会社 | 半導体装置及びその製造方法 |
DE20308495U1 (de) * | 2003-05-28 | 2004-09-30 | Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH | Konversions-LED |
-
2002
- 2002-05-29 DE DE10223988A patent/DE10223988A1/de not_active Ceased
-
2003
- 2003-05-28 JP JP2004510355A patent/JP2005527692A/ja active Pending
- 2003-05-28 US US10/513,724 patent/US7481951B2/en not_active Expired - Lifetime
- 2003-05-28 DE DE10392603.8T patent/DE10392603B4/de not_active Expired - Lifetime
- 2003-05-28 WO PCT/DE2003/001749 patent/WO2003102113A1/de active Application Filing
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001270775A (ja) * | 2000-03-27 | 2001-10-02 | National Institute For Materials Science | Yag透明焼結体の製造法 |
JP2002029742A (ja) * | 2000-07-21 | 2002-01-29 | Daiichi Kigensokagaku Kogyo Co Ltd | 希土類金属酸化物粉末及びその製造方法 |
EP1217057A2 (de) * | 2000-12-22 | 2002-06-26 | Sumitomo Chemical Company, Limited | Aluminat-Phosphor Herstellungsverfahren |
Non-Patent Citations (2)
Title |
---|
DATABASE WPI Section Ch Week 200235, Derwent World Patents Index; Class E33, AN 2002-311230, XP002255354 * |
PATENT ABSTRACTS OF JAPAN vol. 2002, no. 02 2 April 2002 (2002-04-02) * |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2004106263A3 (fr) * | 2003-05-23 | 2005-03-10 | Rhodia Elect & Catalysis | Composes precurseurs d'aluminates d'alcalino-terreux ou de terre rare, leur procede de preparation et leur utilisation comme precurseur de luminophore notamment |
WO2004106263A2 (fr) * | 2003-05-23 | 2004-12-09 | Rhodia Electronics And Catalysis | Composes precurseurs d'aluminates d'alcalino-terreux ou de terre rare, leur procede de preparation et leur utilisation comme precurseur de luminophore notamment |
US7625546B2 (en) | 2003-05-23 | 2009-12-01 | Rhodia Electronics & Catalysis | Precursor compounds of alkaline earth metal or rare earth metal aluminates method production and use thereof particularly as precursors for luminophores |
US7126265B2 (en) | 2003-05-28 | 2006-10-24 | Patent-Treuhand-Gesellschaft Fuer Elektrische Gluehlampen Mbh | Conversion LED having a phosphor component based on an agglomeration of phosphor particles and pores |
US7088038B2 (en) | 2003-07-02 | 2006-08-08 | Gelcore Llc | Green phosphor for general illumination applications |
US7442326B2 (en) | 2003-10-29 | 2008-10-28 | Lumination Llc | Red garnet phosphors for use in LEDs |
US7252787B2 (en) | 2003-10-29 | 2007-08-07 | General Electric Company | Garnet phosphor materials having enhanced spectral characteristics |
US7094362B2 (en) | 2003-10-29 | 2006-08-22 | General Electric Company | Garnet phosphor materials having enhanced spectral characteristics |
EP1764402A1 (de) * | 2004-04-23 | 2007-03-21 | Sumitomo Chemical Company, Limited | Leuchtstoff |
US7892451B2 (en) | 2004-04-23 | 2011-02-22 | Sumitomo Chemical Company, Limited | Phosphor |
EP1764402A4 (de) * | 2004-04-23 | 2009-08-19 | Sumitomo Chemical Co | Leuchtstoff |
JP4583076B2 (ja) * | 2004-06-11 | 2010-11-17 | スタンレー電気株式会社 | 発光素子 |
JP2005353888A (ja) * | 2004-06-11 | 2005-12-22 | Stanley Electric Co Ltd | 発光素子 |
US7648649B2 (en) | 2005-02-02 | 2010-01-19 | Lumination Llc | Red line emitting phosphors for use in led applications |
US7329371B2 (en) | 2005-04-19 | 2008-02-12 | Lumination Llc | Red phosphor for LED based lighting |
US7847309B2 (en) | 2007-07-16 | 2010-12-07 | GE Lighting Solutions, LLC | Red line emitting complex fluoride phosphors activated with Mn4+ |
EP2814072A1 (de) * | 2013-06-12 | 2014-12-17 | Shin-Etsu Chemical Co., Ltd. | Lichtemittierende Vorrichtung |
Also Published As
Publication number | Publication date |
---|---|
US7481951B2 (en) | 2009-01-27 |
DE10223988A1 (de) | 2003-12-18 |
DE10392603B4 (de) | 2018-01-18 |
US20060022580A1 (en) | 2006-02-02 |
JP2005527692A (ja) | 2005-09-15 |
DE10392603D2 (de) | 2005-02-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE10392603B4 (de) | Leuchtstoffpulver, Verfahren zum Herstellen des Leuchtstoffpulvers und Verwendung eines Leuchtstoffpulvers | |
DE20308495U1 (de) | Konversions-LED | |
EP1897152B1 (de) | Wellenlängenkonvertierendes konvertermaterial, lichtabstrahlendes optisches bauelement und verfahren zu dessen herstellung | |
DE112005003868B4 (de) | Beleuchtungsvorrichtung und Bildanzeigevorrichtung | |
EP1670876B1 (de) | Hocheffizienter leuchtstoff | |
DE112005000370T5 (de) | Leuchtstoff, Verfahren zur Herstellung desselben und lichtmittierende Vorrichtung unter Verwendung des Leuchtstoffs | |
WO2010020495A1 (de) | Alpha-sialon-leuchtstoff | |
DE112006003161T5 (de) | Ladungskompensierte Nitridphosphore zur Verwendung in Beleuchtungsanwendungen | |
WO2006081803A1 (de) | Gelb emittierender leuchtstoff und lichtquelle mit derartigem leuchtstoff | |
DE112011103143B4 (de) | Sialon-leuchtstoff, verfahren zum herstellen desselben und licht-emittierende vorrichtung, welche denselben verwendet | |
DE112007001219T5 (de) | Weisser Leuchtstoff, und weisses lichtemittierendes Element oder Vorrichtung | |
EP1664238A1 (de) | Grün emittierende led | |
DE102018108842A1 (de) | Leuchtstoffkombination, Konversionselement, optoelektronische Vorrichtung | |
EP2220191B1 (de) | Wellenlängenkonvertierte LED | |
DE10202741A1 (de) | Rosafarbenes Licht emittierende Vorrichtung | |
WO2013037973A1 (de) | Leuchtstoffmischung, optoelektronisches bauelement mit einer leuchtstoffmischung und strassenlaterne mit einer leuchtstoffmischung | |
DE102011016811B4 (de) | Roter und grüner Fluorsulfidleuchtstoff, Herstellungsverfahren davon sowie Verwendung des Leuchtstoffes in einer Weißlicht emittierenden Diode | |
WO2016083448A1 (de) | Optoelektronischer halbleiterchip, verfahren zur herstellung eines optoelektronischen halbleiterchips, konversionselement und leuchtstoff für ein konversionselement | |
DE102019104008B4 (de) | Leuchtstoff, verfahren zur herstellung eines leuchtstoffs und optoelektronisches bauelement | |
DE102021203336A1 (de) | Leuchtstoff, verfahren zur herstellung eines leuchtstoffs und strahlungsemittierendes bauelement | |
WO2020083908A1 (de) | Roter leuchtstoff und konversions-led | |
DE102013105056A1 (de) | Verfahren zur Herstellung eines Leuchtstoffs, Leuchtstoff und optoelektronisches Bauelement | |
WO2021175377A1 (de) | Leuchtstoff, verfahren zur herstellung des leuchtstoffs und beleuchtungsvorrichtung umfassend den leuchtstoff | |
WO2024028387A1 (de) | Leuchtstoff, verfahren zur herstellung eines leuchtstoffs und strahlungsemittierendes bauelement | |
WO2024022862A1 (de) | Leuchtstoff, verfahren zu dessen herstellung und strahlungsemittierendes bauelement |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
AK | Designated states |
Kind code of ref document: A1 Designated state(s): DE JP US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2004510355 Country of ref document: JP |
|
REF | Corresponds to |
Ref document number: 10392603 Country of ref document: DE Date of ref document: 20050203 Kind code of ref document: P |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10392603 Country of ref document: DE |
|
ENP | Entry into the national phase |
Ref document number: 2006022580 Country of ref document: US Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 10513724 Country of ref document: US |
|
WWP | Wipo information: published in national office |
Ref document number: 10513724 Country of ref document: US |