WO2014094657A1 - 氮氧化物橙-红色荧光物质,包括其的发光膜或发光片及发光器件 - Google Patents
氮氧化物橙-红色荧光物质,包括其的发光膜或发光片及发光器件 Download PDFInfo
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- WO2014094657A1 WO2014094657A1 PCT/CN2013/090145 CN2013090145W WO2014094657A1 WO 2014094657 A1 WO2014094657 A1 WO 2014094657A1 CN 2013090145 W CN2013090145 W CN 2013090145W WO 2014094657 A1 WO2014094657 A1 WO 2014094657A1
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/0883—Arsenides; Nitrides; Phosphides
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- 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
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/7734—Aluminates
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- 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
- C09K11/7728—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing europium
- C09K11/77348—Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides
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- 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
- C09K11/7783—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals one of which being europium
- C09K11/77928—Silicon Aluminium Nitrides or Silicon Aluminium Oxynitrides
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/64—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using wavelength conversion means distinct or spaced from the light-generating element, e.g. a remote phosphor layer
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
- F21V9/30—Elements containing photoluminescent material distinct from or spaced from the light source
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B33/00—Electroluminescent light sources
- H05B33/12—Light sources with substantially two-dimensional radiating surfaces
- H05B33/14—Light sources with substantially two-dimensional radiating surfaces characterised by the chemical or physical composition or the arrangement of the electroluminescent material, or by the simultaneous addition of the electroluminescent material in or onto the light source
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier 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 with at least one potential-jump barrier or surface barrier 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
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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
Definitions
- the present invention relates to the field of semiconductor technology, and in particular to a nitrogen oxide orange-red fluorescent substance, including a light-emitting film or a light-emitting sheet therefor. And light emitting devices.
- BACKGROUND OF THE INVENTION White light emitting diodes (white LEDs) have the advantages of low voltage, high luminous efficiency, low energy consumption, long life, no pollution, and have been successfully applied in the fields of semiconductor illumination and flat panel display.
- the implementation of white LEDs is mainly divided into two types: the first is a combination of three primary color (red, blue, green) LED chips; the other is to use LED chips to stimulate the mixing of fluorescent materials to form white light, that is, with blue LED chips.
- the blue LED chip is simple, easy, and relatively inexpensive in combination with the Y 3 Al 5 0 12: Ce yellow fluorescent material, and becomes a mainstream solution for white LEDs.
- the white light spectrum formed by this method is relatively single, and the spectrum is mainly concentrated in the yellow light region, resulting in low color rendering of the prepared white LED.
- the red component missing in the white LED spectrum can be compensated for, and the color rendering ability of the white LED product can be improved.
- Nitrogen/nitrogen oxide fluorescent substances have received widespread attention since their inception.
- the anionic group of the fluorescent substance contains a highly negatively charged N 3 —, and the electron cloud expansion effect causes the excitation spectrum to move toward the long-wave direction such as near ultraviolet light and visible light, and can be excited by blue light and ultraviolet light in the range of 200 to 500 nm, and emit light.
- the main wavelength is distributed in a wide range of 600 ⁇ 720nm, featuring good color rendering and high luminous efficiency. It has good safety performance, non-toxicity, environmental protection, and the matrix has a tight network structure and is stable in physical and chemical properties (for example, Patent Literature)
- the regulation of CaAlSiN 3 :Eu red powder by Sr can effectively improve the luminous intensity of the fluorescent substance.
- the nitrogen oxide orange-red fluorescent substance of the present invention further increases the regulation range of the phosphor, and the light color range can be expanded to the orange region.
- the present invention provides an oxynitride orange-red fluorescent substance, including the luminescent film or the luminescent sheet and the illuminating device thereof, in order to improve the nitrogen oxide orange-red fluorescent substance. Luminous efficiency.
- a nitrogen oxide orange-red fluorescent substance having a chemical formula of M m A a Si x N y O z :dR, wherein the M element is in Ca, Sr or Ba One or more elements; the A element is a mixture of A1 or A1 and one or more elements of Ga, La, Sc or Y; and the R element is one or more of Ce, Eu or Mn Element; and the above chemical formula satisfies 0.8 ⁇ m 1.2, Ka ⁇ 1.7, Kx ⁇ 1.7, 3 ⁇ y ⁇ 4.2, 0 ⁇ z ⁇ 0.7, 0.001 ⁇ d ⁇ 0.2.
- the main generation phase of the above-mentioned nitrogen oxide orange-red fluorescent substance is in the powder X-ray diffraction spectrum of the Cuka line, at least at a Bragg angle (2 ⁇ ) 31.3° to 32.7°, 35.2° to 36.2°, 36.2° to 36.7. °, 36.7.
- a diffraction peak in the range of ⁇ 37.6° wherein the intensity of the diffraction peak in the range of 36.7° to 37.6° is not less than 18% of the intensity of the diffraction peak in the range of 36.2° to 36.7°, and the half-peak width of the emission spectrum of the phosphor Not less than 82nm.
- the main generating phase of the above-mentioned nitrogen oxide orange-red fluorescent substance is in the powder X-ray diffraction spectrum of the Cuka line, at least at a Bragg angle (2 ⁇ ) at 31.3 ° to 31.8 °, 31.8 ° to 32.7 °, 35.2 ° ⁇
- diffraction peaks in the range of 36.2°, 36.2° to 36.7°, 36.7° to 37.6°, 48.0° to 49.5°, 56.0° to 57.2°
- the half-peak width of the emission spectrum of the phosphor is not less than 95 nm.
- the above M element is Ca and/or Sr; the A element is Al, or a mixture of A1 and Ga and/or Y; and the R element is one or two elements of Eu and Mn. Further, the above A element is Al. Further, the above R element is Eu. Further, the above M element is Ca. Further, the fluorescent substance is in the form of a powder, a film or a sheet. Meanwhile, in the present invention, an illuminating film or a luminescent sheet is also formed, which is formed by dispersing the above-mentioned oxynitride orange-red fluorescent substance in a glass material, a plastic material or a resin material.
- the other fluorescent substance in the luminescent film or the luminescent sheet is one or more of the following fluorescent substances (Y, Gd, Lu, Tb) 3 (Al, Ga) 5 0 12 : Ce, (Mg, Ca, Sr,Ba) 2 Si0 4 :Eu , (Ca,Sr) 3 Si0 5 :Eu , (La,Ca) 3 Si 6 Nu:Ce, a-SiA10N:Eu, p-SiA10N:Eu Ba 3 Si 6 0 12 N 2 :Eu, Ca 3 (Sc,Mg) 2 Si 3 0 12 :Ce, CaSc 2 0 4 :Eu , BaAl 8 0i 3 :Eu , (Ca
- a light-emitting device comprising at least a radiation source and the above-described nitrogen oxide orange-red fluorescent substance.
- the above radiation source is an ultraviolet, violet, or blue light emitting source.
- the above-mentioned light emitting device further contains other fluorescent substances that are excited by the radiation source to emit light.
- the other fluorescent substance is one or more of the following fluorescent substances: (Y, Gd, Lu, Tb) 3 (Al, Ga) 5 0i 2 : Ce, (Mg, Ca, Sr, Ba) 2 Si0 4 :Eu , (Ca,Sr) 3 Si0 5 :Eu , (La,Ca) 3 Si 6 Nu:Ce, a-SiA10N:Eu, p-SiA10N:Eu Ba 3 Si 6 0 12 N 2 :Eu, Ca 3 (Sc,Mg) 2 Si 3 0 12 :Ce, CaSc 2 0 4 :Eu , BaAl 8 0 13 :Eu , (Ca,Sr,Ba)Al 2 0 4 :Eu , (Sr,Ca,Ba) (Al,Ga,In) 2 S 4 :Eu , (Ca,Sr) 8 (Mg,Zn)(Si0 4 ) 4 Cl 2 :
- the nitrogen oxide orange-red fluorescent substance provided by the invention can emit orange-red light under the excitation of the radiation source, and the fluorescent substance has good luminous efficiency and can satisfy high color rendering and low color temperature white light. LED needs.
- the present invention has other objects, features and advantages. The invention will now be described in further detail with reference to the drawings. BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are incorporated in FIG In the picture: 1 shows an emission spectrum of a fluorescent substance of a fluorescent substance prepared according to Example 1 of the present application; FIG. 2 shows an XRD pattern of a fluorescent substance prepared according to Example 2 of the present application; and FIG. 3 shows XRD pattern of the fluorescent substance prepared in Example 5 of the present application.
- an oxynitride orange-red fluorescent substance having a chemical formula of M m A a Si x N y O z :dR, wherein the M element is Ca, Sr or One or more elements in Ba; A element is a mixture of A1 or A1 and one or more elements of Ga, La, Sc or Y; R element is one of Ce, Eu or Mn or One or more elements; and the above chemical formula satisfies 0.8 ⁇ m ⁇ 1.2, Ka ⁇ 1.7, Kx ⁇ 1.7, 3 ⁇ y ⁇ 4.2, 0 ⁇ z ⁇ 0.7, 0.001 ⁇ d ⁇ 0.2.
- a: x 0.8 to 1.2 is preferable.
- the oxynitride orange-red fluorescent substance provided in the present invention can emit orange-red light under the excitation of a radiation source, and the fluorescent substance has good luminous efficiency and can satisfy high color rendering and low color. The need for color temperature white LEDs.
- a : X 0.8 ⁇ 1.2 fluorescent substance is preferred in the chemical formula, and the main generating phase content of the fluorescent substance is large, the content of the heterophase is small, and the luminescent property is good.
- a / (m + d) > l the relationship of a, m, d in the chemical formula is defined as a / (m + d) > l to define the M element,
- A The atomic number relationship between the element and the R element is advantageous for broadening the half width of the phosphor of the series, thereby allowing the fluorescent substance to have a higher luminance. Since high-color white LED devices require white light spectrum to have as wide a distribution as possible in the visible light range, the phosphors characterized by this scheme have great advantages in preparing high-color, high-efficiency white LEDs.
- the main generation phase of the above-mentioned nitrogen oxide orange-red fluorescent substance powder is in a powder X-ray diffraction pattern of the Cuka line, at least at a Bragg angle (2 ⁇ ) 31.3° to 32.7°, 35.2. ° ⁇ 36.2. , 36.2° ⁇ 36.7°, a diffraction peak exists in the range of 36.7° ⁇ 37.6°, wherein the intensity of the diffraction peak in the range of 36.7° ⁇ 37.6° is not less than 18% of the intensity of the diffraction peak in the range of 36.2° to 36.7°,
- the half-peak width of the emission spectrum of the phosphor is not less than 82 nm.
- the structure of the prepared nitrogen oxide orange-red fluorescent substance is controlled within the above range, and the nitrogen oxide orange-red fluorescent substance has the advantages of a large half-width and a high luminous efficiency, and is advantageous for producing high luminous efficiency and high display.
- Chromatic white LED device Preferably, the main generating phase of the above-mentioned nitrogen oxide orange-red fluorescent substance powder is in a powder X-ray diffraction pattern of the Cuka line, at least at a Bragg angle (2 ⁇ ) of 31.3° to 31.8°, 31.8° to 32.7°, 35.2°.
- the M element is Ca and/or Sr; the A element is Al, or a mixture of A1 and Ga and/or Y; and the R element is one of Eu and Mn Kind or two elements.
- the M element of the oxynitride orange-red fluorescent substance is Ca and/or Sr; the element A is Al; and the R element is Eu and/or Mn.
- the M element of the oxynitride orange-red fluorescent substance is Ca and/or Sr; the A element is Al; and the R element is Eu.
- the molecular element of the oxynitride orange-red fluorescent substance has a M element of Car; the A element is Al; and the R element is Eu.
- the oxynitride orange-red fluorescent material is in the form of a powder, a film or a sheet.
- the molecular formula of the above-mentioned oxynitride orange-red fluorescent substance is Ca m Al a Si x N y O z : dEu.
- the chemical formula satisfies 0.8 ⁇ m ⁇ l, l ⁇ a ⁇ 1.7, Kx ⁇ 1.7, 3 ⁇ y ⁇ 4.2, 0.1 ⁇ z ⁇ 0.7, 0.001 ⁇ d ⁇ 0.2.
- the fluorescent material having this molecular formula has a small amount of raw material components, is easy to process, and is excellent in performance.
- an illuminating film or a luminescent sheet is further provided, wherein the luminescent film or the luminescent sheet is formed by dispersing the above-mentioned oxynitride orange-red fluorescent substance in a glass material, a plastic material or a resin material, or It is formed by dispersing the above-mentioned nitrogen oxide orange-red fluorescent substance together with other fluorescent substances in a glass material, a plastic material or a resin material or coating on a glass material, a plastic material or a resin material.
- the luminescent film or luminescent sheet provided by the present invention is capable of emitting orange-red light, and the fluorescent substance has good luminous efficiency. It can meet the needs of high color rendering and low color temperature white LEDs.
- the other fluorescent substance is one or more of the following fluorescent substances: (Y, Gd, Lu, Tb) 3 (Al, Ga) 5 0 12 : Ce, (Mg ,Ca,Sr,Ba) 2 Si0 4 :Eu, (Ca,Sr) 3 Si0 5 :Eu, (La,Ca) 3 Si 6 Nu:Ce, a-SiA10N:Eu, p-SiA10N:Eu Ba 3 Si 6 0 12 N 2 :Eu, Ca 3 (Sc,Mg) 2 Si 3 0 12 :Ce, CaSc 2 0 4 :Eu , BaAl 8 0i 3 :Eu , (Ca,Sr,Ba)Al 2 0 4 :Eu , (Sr, Ca, Ba)(Al,Ga,In) 2 S 4 :Eu , (Ca,Sr) 8 (Mg,Z) 3 (Al, Ga) 5 0 12 : Ce,
- a light-emitting device comprising at least a radiation source and the above-described nitrogen oxide orange-red fluorescent substance.
- the source of radiation is preferably an ultraviolet, violet, or blue light emitting source.
- the above-mentioned light emitting device further contains other fluorescent substances that are excited by the radiation source to emit light.
- the other fluorescent substance is one or more of the following fluorescent substances: (Y, Gd, Lu, Tb) 3 (Al, Ga) 5 0 12 : Ce, (Mg, Ca, Sr, Ba) 2 Si0 4 : Eu (Ca,Sr) 3 Si0 5 :Eu, (La,Ca) 3 Si 6 N u :Ce, a-SiA10N:Eu, p-SiA10N:Eu Ba 3 Si 6 0 12 N 2 :Eu, Ca 3 (Sc ,Mg) 2 Si 3 0 12 :Ce, CaSc 2 0 4 :Eu, BaAl 8 0 13 :Eu, (Ca,Sr,Ba)Al 2 0 4 :Eu, (Sr,Ca,Ba)(Al,Ga ,In) 2 S4:Eu , (Ca,Sr) 8 (Mg,Zn)(Si0 4 ) 4 Cl 2 :Eu/Mn
- the fluorescent material according to the present invention is not limited to a synthetic raw material and a preparation method.
- the following raw materials and preparation methods are preferably employed to improve the color and light performance of the fluorescent material.
- the raw material for synthesizing the fluorescent substance is preferably a nitride of various metals and non-metal elements. The raw materials are weighed according to the required ratio and mixed thoroughly.
- the calcination environment is selected in a high pressure/normal pressure furnace having a nitrogen/nitrogen hydrogen or CO atmosphere to prevent oxygen in the atmosphere from entering the furnace.
- the holding time at the highest temperature is usually 20min-20h. When the holding time is too short, the raw material can not fully react. If the holding time is too long, the N element will overflow and the fluorescent crystal will grow abnormally. Therefore, the holding time is preferably 3-8h. . Then, the temperature in the furnace is lowered to below 100 ° C, and the powder is taken out for post-treatment including grinding, pickling, sieving, and drying steps.
- the fluorescent material or the fluorescent sheet according to the present invention is not limited to a synthetic raw material and a preparation method, and the red fluorescent substance of the present invention, or the red fluorescent substance of the present invention and other fluorescent substances are prepared as long as the glass material, the plastic material or the resin material is prepared.
- the fluorescent substance according to the present invention can be efficiently excited by radiation light having a wavelength of 300-500 nm, and the fluorescent substance or the light conversion film material of the resin, silica gel, plastic, glass, ceramics, etc., which is mixed with the fluorescent substance, and ultraviolet light and violet light can be used. Or a combination of blue radiation sources to form a light emitting device. These white light emitting devices are widely used in the field of illumination or display.
- the beneficial effects of the orange-red fluorescent substance prepared by the present invention will be further described below in conjunction with specific examples.
- Examples 1-26 and Comparative Example 1 (D1) Raw materials: silicon nitride and/or silicon oxide is used as a silicon source, and any one or more of aluminum nitride, aluminum nitrate, and metal aluminum is used as an aluminum source (Ga, La, Sc and Y are the same), with any one or more of calcium nitride, calcium oxide, calcium carbonate and calcium hydroxide as the calcium source (Sr, Ba is the same), with tantalum nitride and/or Cerium oxide is the source of lanthanum (Ce, Mn are the same).
- Preparation method Weigh each raw material according to the ratio of each raw material in the chemical formula to be formed, mix and weigh each raw material, and mix the mixed raw materials in a nitrogen-hydrogen atmosphere at 1500 ° C for 3 hours. , the temperature is reduced to 10 (TC or less, after removal, post-treatment such as grinding, washing, drying and sieving to obtain a fluorescent substance.
- Test 1 Excitation of Examples 1-26 with blue light having a wavelength of 460 nm and comparison as an example Phosphor in (D1), and measure the color coordinates, emission spectrum, half-width, and relative brightness of the phosphor.
- Fig. 1 is an emission spectrum of a fluorescent substance prepared in Example 1.
- the fluorescent substance has a broad emission peak in the range of 550 to 750 nm, and the emission spectrum shows that the fluorescent material exhibits red luminescence.
- the nitrogen oxide orange-red fluorescent material provided by the present invention has the advantages of large half-width and high luminous efficiency, and is advantageous for producing a white LED device having high luminous efficiency and high color rendering. It has a structure of the chemical formula M m A a Si x N y O z :dR and satisfies 0.8 ⁇ m ⁇ 1.2, l ⁇ a ⁇ 1.7, Kx ⁇ 1.7, 3 ⁇ y ⁇ 4.2, 0 ⁇ z ⁇ 0.7, 0.001 ⁇
- the relative luminescence intensity of the fluorescent substance required for d ⁇ 0.2 is remarkably superior to the relative luminescence intensity of the fluorescent substance (D1) when the above numerical range is not satisfied.
- the nitrogen oxide orange-red fluorescent substance provided by the present invention is more preferably a powder X of the main generation phase of the powder in the Cuka line while satisfying the above chemical formula of M m A a Si x N y O z :dR.
- the ray diffraction pattern at least in the Bragg angle (2 ⁇ ) 31.3 ° ⁇ 32.7 °, 35.2 ° ⁇ 36.2 °, 36.2 ° ⁇ 36.7 °, 36.7 ° ⁇ 37.6 ° range of diffraction peaks, and 36.7 ° ⁇ 37.6 ° range
- the intensity of the diffraction peak in the range is not less than 18% of the intensity of the diffraction peak in the range of 36.2° to 36.7°, and the half-peak width of the emission spectrum of the phosphor is not less than 82 nm of the oxynitride orange-red fluorescent substance.
- an X-ray diffraction pattern of the nitrogen oxide orange-red fluorescent substance in the above embodiments 2 and 5 of the present invention is further provided, and Example 1
- Example 1 The diffraction peaks in the X-ray diffraction pattern of the nitrogen oxide orange-red fluorescent substance in Examples 26 and Comparative Example 1.
- the X-ray diffraction patterns of the oxynitride orange-red fluorescent substances in Examples 2 and 5 are shown in Fig. 2 and Fig. 3: as shown in Fig. 2, Fig. 2 is the X of the fluorescent substance prepared in the above Example 2.
- FIG. 3 is an emission spectrum of a fluorescent substance of the fluorescent substance prepared in the above Example 5, wherein the Bragg angle (2 ⁇ ) is 31.3° to 31.8°, 31.8° to 32.7°, 35.2° to 36.2°.
- the angle at the Bragg angle (2 ⁇ ) is 31.3. ° ⁇ 31.8°, 31.8° ⁇ 32.7°, 35.2. ⁇ 36.2. , 36.2. ⁇ 36.7. , 36.7. ⁇ 37.6. , 48.0. ⁇ 49.5. , 56.0. ⁇ 57.2.
- Examples 3-12, 15-26 The range of NOx orange-red phosphors (Examples 3-12, 15-26) in the range of diffraction peaks relative to the Bragg angle only (2 ⁇ ) 31.3° to 32.7°, 35.2° to 36.2°, 36.2° ⁇
- the relative luminescence intensity of the NOx-orange-red phosphors (Examples 1, 2, 13 and 14) with diffraction peaks in the range of 36.7°, 36.7° to 37.6° is higher.
- Example 27 Using a blue LED chip as a radiation source, the orange-red fluorescent substance, the white LED yellow fluorescent substance Y 3 Al 5 01 2 :Ce, the red fluorescent substance CaAlSiN 3 :Eu, three kinds of fluorescence in Example 3 of the present invention are used.
- Material weight ratio For: Orange: Yellow: Red 15:70:15, the fluorescent substance is dispersed in a silica gel with a refractive index of 1.41 and a transmittance of 99%.
- the chip and the light conversion film are combined, soldered, and sealed.
- a white light emitting device was obtained with a color coordinate of (0.3745, 0.3312), a color rendering index of 92, and a correlated color temperature of 3745K.
- Embodiment 28 Using a blue LED chip as a radiation source, an orange-red fluorescent substance, white light in Embodiment 3 of the present invention
- LED yellow fluorescent substance Y 3 Al 5 01 2 :Ce, red fluorescent substance CaAlSiN 3 :Eu, green fluorescent substance (Y,Lu) 3 (Al,Ga) 5 0i 2 :Ce), the weight ratio of the four fluorescent substances is : Orange: Yellow: Red: Green 15:60:15:10, the fluorescent substance is dispersed in a silica gel with a refractive index of 1.41 and a transmittance of 99%. The chip and the light conversion film are combined, and the circuit is soldered. After sealing, a white light emitting device was obtained, the color coordinates of which were (0.3875, 0.3408), the color rendering index of 96, and the correlated color temperature of 3469 K.
- Embodiment 30 In this embodiment, a near-violet LED chip (380 nm) is used as a radiation source, and a red fluorescent substance, a blue fluorescent substance BaMgAl 1Q 0 17: E U and a green fluorescent substance such as (Y, Lu) in Embodiment 15 of the present invention are used.
- a red fluorescent substance, a blue fluorescent substance BaMgAl 1Q 0 17: E U and a green fluorescent substance such as (Y, Lu) in Embodiment 15 of the present invention are used.
- the circuit is soldered and sealed to obtain a white light emitting device with a color coordinate of (0.3867, 0.3412), a color rendering index of 94.4, and a correlated color temperature of 3469 K.
- the nitrogen oxide orange-red fluorescent substance prepared by the application of the present invention can emit white light when used in combination with other fluorescent materials, and the prepared white LED can satisfy high color rendering and low color. Color temperature market demand.
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Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US14/443,053 US9671086B2 (en) | 2012-12-21 | 2013-12-20 | Oxynitride orange-red fluorescent substance and light-emitting film or sheet and light-emitting device comprising the same |
EP13864267.3A EP2937400A4 (en) | 2012-12-21 | 2013-12-20 | RED ORANGE OXYNITRIDE FLUORESCENT SUBSTANCE AND LIGHT EMITTING FILM OR LIGHT EMITTING SHEET AND LIGHT EMITTING DEVICE COMPRISING THE SAME |
KR1020157011284A KR101726246B1 (ko) | 2012-12-21 | 2013-12-20 | 질소산화물 등색-적색 형광물질 및 그 형광물질을 포함한 발광막 혹은 발광시트 및 발광소자 |
Applications Claiming Priority (2)
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US (1) | US9671086B2 (zh) |
EP (1) | EP2937400A4 (zh) |
KR (1) | KR101726246B1 (zh) |
CN (2) | CN102994079A (zh) |
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CN102994079A (zh) | 2012-12-21 | 2013-03-27 | 北京有色金属研究总院 | 氮氧化物橙-红色荧光物质,包括其的发光膜或发光片及发光器件 |
CN104178142A (zh) * | 2013-05-22 | 2014-12-03 | 海洋王照明科技股份有限公司 | 锰掺杂碱土氮铝硅盐发光薄膜、制备方法及其应用 |
WO2014203841A1 (ja) | 2013-06-18 | 2014-12-24 | シャープ株式会社 | 発光装置 |
JP6645429B2 (ja) * | 2014-08-07 | 2020-02-14 | 三菱ケミカル株式会社 | 蛍光体、発光装置、画像表示装置及び照明装置 |
KR102415649B1 (ko) * | 2015-03-18 | 2022-07-01 | 엘지전자 주식회사 | 산 질화물 형광체 및 이를 이용한 발광 소자 패키지 |
CN105623658B (zh) * | 2016-01-29 | 2017-04-12 | 江苏博睿光电有限公司 | 一种氮氧化物荧光粉及其制备方法、氮氧化物发光体和发光器件 |
JP6669147B2 (ja) | 2016-10-31 | 2020-03-18 | 日亜化学工業株式会社 | 発光装置 |
JP2020109850A (ja) * | 2016-10-31 | 2020-07-16 | 日亜化学工業株式会社 | 発光装置の製造方法 |
CN109880621B (zh) * | 2019-04-01 | 2021-07-30 | 旭宇光电(深圳)股份有限公司 | 荧光材料及其制备方法、发光膜、发光片、发光装置、图像显示装置 |
CN113444521B (zh) * | 2020-03-24 | 2022-05-10 | 有研稀土新材料股份有限公司 | 一种红色荧光粉及具有其的发光器件 |
CN113917776B (zh) | 2020-07-09 | 2023-03-24 | 中强光电股份有限公司 | 波长转换装置以及投影装置 |
WO2023176564A1 (ja) * | 2022-03-15 | 2023-09-21 | デンカ株式会社 | 蛍光体粉末、蛍光体粉末の製造方法、及び発光装置 |
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US20150308657A1 (en) | 2015-10-29 |
EP2937400A4 (en) | 2016-08-03 |
US9671086B2 (en) | 2017-06-06 |
KR101726246B1 (ko) | 2017-04-12 |
EP2937400A1 (en) | 2015-10-28 |
KR20150065802A (ko) | 2015-06-15 |
TWI530550B (zh) | 2016-04-21 |
TW201425534A (zh) | 2014-07-01 |
CN103756674B (zh) | 2016-05-04 |
CN103756674A (zh) | 2014-04-30 |
CN102994079A (zh) | 2013-03-27 |
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