CN108410452B - Light-emitting material composition and light-emitting device - Google Patents

Light-emitting material composition and light-emitting device Download PDF

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CN108410452B
CN108410452B CN201710072500.XA CN201710072500A CN108410452B CN 108410452 B CN108410452 B CN 108410452B CN 201710072500 A CN201710072500 A CN 201710072500A CN 108410452 B CN108410452 B CN 108410452B
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CN108410452A (en
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刘元红
刘荣辉
邵冷冷
马小乐
高慰
陈磊
周小芳
张霞
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Grirem Advanced Materials Co Ltd
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Abstract

The invention provides a luminescent material composition and a luminescent device. The luminescent material composition comprises a blue luminescent material, a green luminescent material and a red luminescent material, wherein the blue luminescent material is selected from any one or more of the following general formulas: ca2‑ xLuHf2Al3O12:xCe、Ca3‑yZr2SiGa2O12:yCe、Ba1‑ rMgAl10O17:rEu、Sr5‑m(PO4)3mEu, the green luminescent material is selected from any one or more of the following general formulas: si6‑ zAlzOzN8‑z:kEu、Ba1‑s‑tMgAl10O17:sEu,tMn、La3‑ vSi6N11vTb red luminescent material is 3.5 MgO.0.5 MgF2·j(Ge1‑nMnn)O2·iM3N4Any one or more of. The composition broadens the display color gamut.

Description

Light-emitting material composition and light-emitting device
Technical Field
The invention relates to the field of optical materials, in particular to a luminescent material composition and a luminescent device.
Background
In recent years, Liquid Crystal Display (LCD) technology has been rapidly developed and is widely used in the fields of mobile phones, notebook computers and high-definition televisions. Since the liquid crystal material itself does not emit light, the backlight becomes an indispensable key element of the liquid crystal display device. At present, backlight sources of LCDs mainly include two modes, namely Cold Cathode Fluorescent Lamps (CCFLs) and white light diodes (LEDs). White LEDs have many advantages such as good color reproducibility, low power consumption, and long lifetime, and thus their market share in the field of liquid crystal display backlights has been rapidly increasing.
At present, the mode of 'LED chip + fluorescent powder' is still the mainstream mode of white light LED generation due to high technical maturity and relatively low cost. For the liquid crystal display LED backlight, the blue LED chip and fluorescent powder are mainly adopted to generate white light, and three commonly used schemes are Y3Al5O12Ce (YAG: Ce) scheme, beta-SiAlON: Eu green phosphor (silicate green for low-end backlight) and nitride red phosphor combination scheme, beta-SiAlON: Eu green phosphor and K2SiF6:Mn4+And (4) red fluorescent powder. The first scheme has wide spectral peak and poor color purity, and the color gamut display range of the manufactured display is about 70% of NTSC. The second solution shows that the gamut range can only be increased to 80% NTSC. In the third technical scheme, the purity of the fluoride red powder is high, so that the display color gamut can be only increased to more than 85% of NTSC.
However, the display color gamut of LED devices prepared by the prior art is still low.
Disclosure of Invention
The invention mainly aims to provide a luminescent material composition and a luminescent device, so as to solve the problem that the display color gamut of an LED device in the prior art is low.
To achieve the above object, one aspect according to the present inventionProvided is a light-emitting material composition including: the blue luminescent material is selected from any one or a mixture of more of the following general formulas: general formula I Ca2- xLuHf2Al3O12xCe, general formula II Ca3-yZr2SiGa2O12yCe, general formula III Ba1-rMgAl10O17rEu and the general formula IV Sr5-m(PO4)3mEu, wherein x is more than or equal to 0.002 and less than or equal to 0.2, y is more than or equal to 0.002 and less than or equal to 0.2, r is more than or equal to 0.002 and less than or equal to 0.2, and m is more than or equal to 0.002 and less than or equal to 0.5, Ca in the general formula I can be substituted by one or more of Ba, Sr and Mg, and Al can be substituted by one or more of B, Ga and Si; ca in the general formula II can be substituted by one or more of Ba, Sr and Mg, Al can be substituted by one or more of B, Ga and Si, Si can be substituted by Al, and Ce can be partially substituted by one or more of Eu, Dy and Tb; ba in the general formula III can be replaced by Ca and/or Sr, Eu can be partially replaced by Ce and/or Mn; sr in the general formula IV can be substituted by one or more of Ba, Ca and Mg, and Eu can be partially substituted by Ce and/or Mn; a green light emitting material selected from a mixture of any one or more of the following general formulae: general formula V Si6-zAlzOzN8-zkEu Ba in the general formula VI1-s-tMgAl10O17sEu, tMn and the general formula VII La3-vSi6N11vTb, wherein, z is more than or equal to 0.1 and less than or equal to 0.6, k is more than or equal to 0.0001 and less than or equal to 0.1, s is more than or equal to 0.001 and less than or equal to 0.2, t is more than or equal to 0.01 and less than or equal to 0.6, and v is more than 0 and less than or equal to 0.5, Eu in the general formula V can be partially substituted by Ce and/or Mn; ba in the general formula VI can be replaced by Ca and/or Sr, Eu can be partially replaced by Ce; la in the general formula VII can be substituted by one or more of Y, Lu and Gd, Si can be substituted by one or more of C, Ge and Ti, N can be partially substituted by O, Tb can be substituted by Ce and/or Eu, and Si6-zAlzOzN8-zkEu has a structure of Si5AlON7The same crystal structure; a red luminescent material, which is represented by a general formula VIII 3.5 MgO.0.5 MgF2·j(Ge1-nMnn)O2·iM3N4A mixture of any one or more of them, whichWherein F can be substituted by one or more of Cl, Br and I, Ge can be substituted by Ti and/or Si, Mg can be substituted by one or more of Ca, Sr and Ba, M element is selected from Si and/or Ti, j is more than or equal to 0.77 and less than or equal to j<0.90，0≤i≤0.067，0.015≤n≤0.03。
Further, the blue light emitting material is Ba1-rMgAl10O17rEu and Sr5-m(PO4)3mEu, and the green luminescent material is La3-vSi6N11vTb and Ba1-s-tMgAl10O17sEu, tMn.
Further, i is not less than 0.05 and not more than 0.067 in the above general formula VIII.
Further, the green emitting material is Si6-zAlzOzN8-zkEu and Ba1-s-tMgAl10O17sEu, tMn.
Further, i is not less than 0.05 and not more than 0.067 in the above general formula VIII.
According to another aspect of the present invention, there is provided a light-emitting device including an LED chip and a light conversion portion that absorbs primary light emitted from the LED chip and converts the primary light into secondary light of a higher wavelength, the light conversion portion containing a light-emitting material, the light-emitting material being any one of the light-emitting materials described above.
Furthermore, the emission peak wavelength range of the LED chip is 355-375 nm, and the blue luminescent material in the luminescent material is Ba1-rMgAl10O17rEu and Sr5-m(PO4)3mEu, and the green luminescent material is La3-vSi6N11vTb and Ba1-s-tMgAl10O17sEu, tMn.
Further, the red luminescent material in the luminescent materials is 3.5 MgO.0.5 MgF2·j(Ge1-nMnn)O2·iM3N4Wherein i is 0.05-0.067.
Furthermore, the emission peak wavelength range of the LED chip is 360-370 nm, preferably 362-367 nm.
Furthermore, the emission peak wavelength range of the LED chip is 380-420 nm, and the green luminescent material in the luminescent material is Si6-zAlzOzN8-zkEu and Ba1-s-tMgAl10O17sEu, tMn.
Further, the red luminescent material in the luminescent materials is 3.5 MgO.0.5 MgF2·j(Ge1-nMnn)O2·iM3N4Wherein i is 0.05-0.067.
Furthermore, the emission peak wavelength range of the LED chip is 390 to 410nm, preferably 400 to 407 nm.
By applying the technical scheme of the invention, the luminescent material composition comprises a blue luminescent material with a stable structure, a green luminescent material with higher luminescent energy and a red luminescent material with longer wavelength, and when the luminescent material composition is applied to a white light LED light source, the spectral range of white light emitted by a white light LED can be widened, the display color gamut range when the white light LED is used as a backlight source of a display device is further widened, and the display effect of a liquid crystal display device is improved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic cross-sectional view of a light-emitting device according to the present invention;
FIG. 2 is a diagram for illustrating the blue luminescent material Sr provided by the present invention4.8(PO4)30.2Eu as Cl;
FIG. 3 is a view showing a green luminescent material Ba provided in the present invention0.85MgAl10O170.05Eu,0.1 Mn; and
FIG. 4 is a 3.5 MgO.0.5 MgF red luminescent material provided by the invention2·0.85(Ge0.9821Mn0.0179)O2·0.15/3Si3N4The luminescence spectrum of (1).
Wherein the figures include the following reference numerals:
2. an LED chip; 3. a light conversion section.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.
After the inventor analyzes influencing factors causing the display color gamut of the LED device one by one, the inventor finds that the conventional green fluorescent powder has lower luminous energy, and fluoride series red powder has shorter emission peak, which can cause the display color gamut range of the LED device to be lower.
In an exemplary embodiment of the present application, there is provided a luminescent material composition including a blue luminescent material, a green luminescent material, and a red luminescent material, the blue luminescent material being a mixture formed from any one or more of the following general formulae: general formula I Ca2-xLuHf2Al3O12xCe, general formula II Ca3-yZr2SiGa2O12yCe, general formula III Ba1-rMgAl10O17rEu and the general formula IV Sr5-m(PO4)3mEu, wherein x is more than or equal to 0.002 and less than or equal to 0.2, y is more than or equal to 0.002 and less than or equal to 0.2, r is more than or equal to 0.002 and less than or equal to 0.2, and m is more than or equal to 0.002 and less than or equal to 0.5, Ca in the general formula I can be substituted by one or more of Ba, Sr and Mg, and Al can be substituted by one or more of B, Ga and Si; ca in the general formula II can be substituted by one or more of Ba, Sr and Mg, Al can be substituted by one or more of B, Ga and Si, Si can be substituted by Al, and Ce can be partially substituted by one or more of Eu, Dy and Tb; ba in the general formula III can be replaced by Ca and/or Sr, and Eu can be partially replaced by Ce and/or Mn; sr in the general formula IV can be substituted by one or more of Ba, Ca and Mg, and Eu can be substituted byCe and/or Mn partial substitution; a green light emitting material selected from a mixture of any one or more of the following general formulae: general formula V Si6-zAlzOzN8-zkEu Ba in the general formula VI1-s-tMgAl10O17sEu, tMn and the general formula VII La3-vSi6N11vTb, wherein, z is more than or equal to 0.1 and less than or equal to 0.6, k is more than or equal to 0.0001 and less than or equal to 0.1, s is more than or equal to 0.001 and less than or equal to 0.2, t is more than or equal to 0.01 and less than or equal to 0.6, and v is more than 0 and less than or equal to 0.5, Eu in the general formula V can be partially substituted by Ce and/or Mn; ba in the general formula VI can be replaced by Ca and/or Sr, and Eu can be partially replaced by Ce; la in the general formula VII can be substituted by one or more of Y, Lu and Gd, Si can be substituted by one or more of C, Ge and Ti, N can be partially substituted by O, Tb can be substituted by Ce and/or Eu, and Si6-zAlzOzN8-zkEu has a structure of Si5AlON7The same crystal structure; the red luminescent material is represented by a general formula VIII 3.5 MgO.0.5 MgF2·j(Ge1-nMnn)O2·iM3N4Wherein F can be substituted by one or more of Cl, Br and I, Ge can be substituted by Ti and/or Si, Mg can be substituted by one or more of Ca, Sr and Ba, M is selected from Si and/or Ti, and 0.77 j is less than or equal to j<0.90，0≤i≤0.067，0.015≤n≤0.03。
The luminescent material composition comprises a blue luminescent material with a stable structure, a green luminescent material with higher luminescent energy and a red luminescent material with longer wavelength, and when the luminescent material composition is applied to a white light LED light source, the spectrum range of white light emitted by a white light LED can be widened, the display color gamut range when the white light LED is used as a backlight source of a display device is further widened, and the display effect of the liquid crystal display device is improved.
In a preferred embodiment of the present application, the blue light emitting material is Ba1-rMgAl10O17rEu and Sr5-m(PO4)3mEu, and the green luminescent material is La3-vSi6N11vTb and Ba1-s-tMgAl10O17sEu, tMn. The luminescent material composition formed by the blue luminescent material, the green luminescent material and the red luminescent material is excited by an LED chip with the emission peak wavelength range of 355-375 nm, the spectrum range of emitted white light is wider, and the expanding effect on the display color gamut of an LED display device is obvious.
In order to further widen the display color gamut by utilizing the change in wavelength of the red light-emitting material, the above-mentioned 3.5MgO · 0.5MgF is preferable2·j(Ge1-nMnn)O2·iM3N4Wherein i is more than or equal to 0.05 and less than or equal to 0.067.
In another preferred embodiment of the present application, the green luminescent material is preferably Si6-zAlzOzN8-zkEu and Ba1-s-tMgAl10O17sEu, tMn. The luminescent material composition formed by the blue luminescent material, the green luminescent material and the red luminescent material is excited by an LED chip with an emission peak wavelength range of 380-420 nm, so that the spectrum range of emitted white light is wider, and the expanding effect on the display color gamut of an LED display device is more obvious.
In order to further widen the display color gamut by utilizing the change in wavelength of the red light-emitting material, the above-mentioned 3.5MgO · 0.5MgF is preferable2·j(Ge1-nMnn)O2·iM3N4Wherein i is more than or equal to 0.05 and less than or equal to 0.067.
In another exemplary embodiment of the present application, there is provided a light emitting device, as shown in fig. 1, including an LED chip 2 and a light conversion portion 3, the light conversion portion 3 absorbing primary light emitted from the LED chip 2 and converting the primary light into secondary light of a higher wavelength, the light conversion portion containing a light emitting material, the light emitting material being any one of the light emitting materials described above.
The luminescent material composition comprises a blue luminescent material with a stable structure, a green luminescent material with higher luminescent energy and a red luminescent material with longer wavelength, and when the luminescent material composition is applied to a luminescent device, the spectral range of emitted white light can be widened, the display color gamut range when the white light LED is used as a backlight source of the display device is further widened, and the display effect of the liquid crystal display device is improved.
In another preferred embodiment of the present application, the LED chip 2 emits light with a peak wavelength range of 355 to 375nm, and the blue luminescent material in the luminescent material is Ba1-rMgAl10O17rEu and Sr5-m(PO4)3mEu, and the green luminescent material is La3-vSi6N11vTb and Ba1-s-tMgAl10O17sEu, tMn. Under the excitation of the LED chip, the white light spectrum range emitted by the luminescent material composition formed by the blue luminescent material, the green luminescent material and the red luminescent material is wider, and the expanding effect on the display color gamut of the LED display device is more obvious.
In order to further widen the display color gamut by utilizing the change in the wavelength of the red light-emitting material, it is preferable that the red light-emitting material among the above-mentioned light-emitting materials is 3.5MgO · 0.5MgF2·j(Ge1-nMnn)O2·iM3N4Wherein i is 0.05-0.067. In order to improve the blue light excitation energy and expand the display color gamut, the emission peak wavelength range of the LED chip 2 is preferably 360-370 nm, and more preferably 362-367 nm.
In another preferred embodiment of the present application, the LED chip 2 emits light with a peak wavelength range of 380-420 nm, and the green luminescent material is Si6-zAlzOzN8-zkEu and Ba1-s-tMgAl10O17sEu, tMn. Under the excitation of the LED chip, the white light spectrum range emitted by the luminescent material composition formed by the blue luminescent material, the green luminescent material and the red luminescent material is wider, and the expanding effect on the display color gamut of the LED display device is more obvious.
In order to further widen the display color gamut by utilizing the change in the wavelength of the red light-emitting material, it is preferable that the red light-emitting material among the above-mentioned light-emitting materials is 3.5MgO · 0.5MgF2·j(Ge1-nMnn)O2·iM3N4Any one or more of the above, wherein,0.05≤i≤0.067。
as described above, the luminescent material composition including the blue luminescent material, the green luminescent material and the red luminescent material can widen the spectral range of white light emitted from the white LED when applied to a white LED light source, further widen the display color gamut when the white LED is used as a backlight source of a display device, and improve the display effect of the liquid crystal display device. The amount of the luminescent materials does not have any essential influence on the realization of the effect, and in order to adjust the light intensity, color temperature and the like of the emitted white light to be within the conventional preferred range, the weight ratio of the blue luminescent material, the green luminescent material and the red luminescent material is preferably (1-3): 2-6): 2-4.
In order to increase the blue light excitation energy and expand the display color gamut, the emission peak wavelength range of the LED chip 2 is preferably 390 to 410nm, and more preferably 400 to 407 nm.
The light-emitting device of the present application is not particularly limited as long as it has the above-described features. As the sealant, silicone gel, epoxy resin, silicone resin, urea resin, or the like can be used, but the sealant is not limited thereto. In addition, the light conversion part may contain appropriate SiO in addition to the phosphor and the sealing agent2、TiO2、ZrO2、Al2O3And the like.
The blue light-emitting material, the green light-emitting material, and the red light-emitting material used in the light-emitting device of the present invention may be produced by known appropriate methods or may be directly obtained.
The advantageous effects of the present application will be further described below with reference to examples and comparative examples.
Comparative example 1
An LED light emitting device was prepared in the manner as shown in fig. 1. Wherein the LED chip 2 is a chip with a peak wavelength of 450nm, and the green luminescent material in the light conversion part 3 is Si5.70Al0.30O0.30N7.70:0.05Eu2+The red luminescent material adopts K2SiF6:0.01Mn4+. Mixing the green luminescent material and the red luminescent material according toThe mixture was dispersed in silica gel at a weight ratio of 25:75 to prepare a light conversion part. The light conversion part is further assembled into an LED light emitting device.
Comparative example 2
An LED light emitting device was prepared in the manner as shown in fig. 1. Wherein the LED chip 2 is 365nm peak wavelength chip, and the blue luminescent material in the light conversion part 3 is Ba0.85MgAl10O170.15Eu, Lu is adopted as green luminescent material2.94Al5Si120.06Ce, Ca is used as red luminescent material0.99AlSiN30.01 Eu. The blue light-emitting material, the green light-emitting material and the red light-emitting material were mixed and dispersed in silica gel (the weight ratio of silica gel to phosphor was 88:12) at a weight ratio of 25:40:35 to prepare a light conversion part. The light conversion part is further assembled into an LED light emitting device.
Example 1
The white LED light emitting device of the present invention was prepared in the manner as shown in fig. 1. Wherein the LED chip 2 is 365nm peak wavelength chip, and the blue light in the light conversion part 3 is emitted by Ba0.85MgAl10O170.15Eu, La is adopted as the green luminescent material2.84Si6N110.16Tb, 3.5 MgO.0.5 MgF as red luminescent material2·0.85(Ge0.9821Mn0.0179)O2·0.15/3Si3N4. The blue light-emitting material, the green light-emitting material and the red light-emitting material were mixed and dispersed in silica gel (the weight ratio of silica gel to phosphor was 90:10) at a weight ratio of 30:40:30 to prepare a light conversion part. The light conversion part is further assembled into an LED light emitting device.
Example 2
The white LED light emitting device of the present invention was prepared in the manner as shown in fig. 1. Wherein the LED chip 2 is a chip with a peak wavelength of 405nm, and the blue luminescent material in the light conversion part 3 adopts Sr4.8(PO4)3Cl of 0.2Eu, and Ba adopted as green luminescent material0.5MgAl10O170.07Eu,0.43Mn, red luminescent material adopts 3.5 MgO.0.5 MgF2·0.8(Ge0.981Mn0.019)O2·0.2/3Si3N4. The blue light emitting material, the green light emitting material and the red light emitting material were mixed and dispersed in an epoxy resin at a weight ratio of 25:45:30 (a weight ratio of the epoxy resin to the phosphor was 92:8), and a light conversion part was prepared. The light conversion part is further assembled into an LED light emitting device.
Examples 3-12 were prepared substantially the same as example 2, using different LED chips and luminescent materials, as detailed in table 1.
TABLE 1
Figure BDA0001223023370000061
Figure BDA0001223023370000071
And detecting by using an HAAS-2000 high-precision rapid spectrum analyzer to obtain light effects and color coordinates, and calculating by using a color coordinate and color gamut calculation formula to obtain a display color gamut, wherein the detection result is shown in a table 2.
TABLE 2
Display color gamut (% NTSC) Light effect (lm/W)
Comparative example 1 90 95
Comparative example 2 91 90
Example 1 98 98
Example 2 95 96
Example 3 96 95
Example 4 95 97
Example 5 96 96
Example 6 94 98
Example 7 97 94
Example 8 94 97
Example 9 93 98
Example 10 94 96
Example 11 93 96
Example 12 93 98
As can be seen from the data in table 2, when the light conversion part uses the mixture formed by the luminescent materials of the present application, the display color gamut of the light emitting device is significantly improved, and simultaneously the high luminous efficiency is maintained. In addition, according to the comparison between examples 1 and 2, it can be found that when the luminescent material composition is combined with an LED chip having an appropriate emission peak wavelength, the display color gamut can be further widened, and the luminous efficacy can be improved.
From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:
the luminescent material composition comprises a blue luminescent material with a stable structure, a green luminescent material with higher luminescent energy and a red luminescent material with longer wavelength, and when the luminescent material composition is applied to a white light LED light source, the spectrum range of white light emitted by a white light LED can be widened, the display color gamut range when the white light LED is used as a backlight source of a display device is further widened, and the display effect of the liquid crystal display device is improved.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. A luminescent material composition, comprising:
a blue light emitting material selected from a mixture of any one or more of the following general formulae: general formula I Ca2-xLuHf2Al3O12xCe, general formula II Ca3-yZr2SiGa2O12yCe, general formula III Ba1-rMgAl10O17rEu and the general formula IV Sr5-m(PO4)3mEu, wherein x is more than or equal to 0.002 and less than or equal to 0.2, y is more than or equal to 0.002 and less than or equal to 0.2, r is more than or equal to 0.002 and less than or equal to 0.2, and m is more than or equal to 0.002 and less than or equal to 0.5, Ca in the general formula I can be substituted by one or more of Ba, Sr and Mg, and Al can be substituted by one or more of B, Ga and Si; ca in the general formula II can be substituted by one or more of Ba, Sr and Mg, Si can be substituted by Al, and Ce can be partially substituted by one or more of Eu, Dy and Tb; ba in the general formula III can be replaced by Ca and/or Sr, and Eu can be partially replaced by Ce and/or Mn; sr in the general formula IV can be substituted by one or more of Ba, Ca and Mg, and Eu can be partially substituted by Ce and/or Mn;
a green light emitting material selected from a mixture of any one or more of the following general formulae: general formula V Si6-zAlzOzN8-zkEu Ba in the general formula VI1-s-tMgAl10O17sEu, tMn and the general formula VII La3-vSi6N11vTb, wherein, z is more than or equal to 0.1 and less than or equal to 0.6, k is more than or equal to 0.0001 and less than or equal to 0.1, s is more than or equal to 0.001 and less than or equal to 0.2, t is more than or equal to 0.01 and less than or equal to 0.6, and v is more than 0 and less than or equal to 0.5, Eu in the general formula V can be partially substituted by Ce and/or Mn; ba in the general formula VI can be replaced by Ca and/or Sr, and Eu can be partially replaced by Ce; la in the general formula VII can be substituted by one or more of Y, Lu and Gd, Si can be substituted by one or more of C, Ge and Ti, N can be partially substituted by O, Tb can be substituted by Ce and/or Eu, and Si6-zAlzOzN8-zkEu has a structure of Si5AlON7The same crystal structure;
the red luminescent material is represented by a general formula VIII 3.5 MgO.0.5 MgF2·j(Ge1-nMnn)O2·iM3N4Wherein F can be substituted by one or more of Cl, Br and I, Ge can be substituted by Ti and/or Si, Mg can be substituted by one or more of Ca, Sr and Ba, M element is selected from Si and/or Ti, j is more than or equal to 0.77 and less than or equal to 0.90, I is more than or equal to 0.05 and less than or equal to 0.067, and n is more than or equal to 0.015 and less than or equal to 0.03.
2. The phosphor composition of claim 1, wherein the blue phosphor is Ba1- rMgAl10O17rEu and Sr5-m(PO4)3mEu, and the green luminescent material is La3-vSi6N11vTb and Ba1-s-tMgAl10O17sEu, tMn.
3. The phosphor composition of claim 1, wherein the green phosphor is Si6- zAlzOzN8-zkEu and Ba1-s-tMgAl10O17sEu, tMn.
4. A light-emitting device, characterized in that the light-emitting device comprises an LED chip (2) and a light-converting portion (3), the light-converting portion (3) absorbing primary light emitted by the LED chip (2) and converting it into secondary light of a higher wavelength, the light-converting portion containing a light-emitting material, the light-emitting material being the light-emitting material according to any one of claims 1 to 3.
5. The light-emitting device according to claim 4, wherein the LED chip (2) emits light with a peak wavelength in a range of 355-375 nm, and the blue light-emitting material is Ba1-rMgAl10O17rEu and Sr5-m(PO4)3mEu, and the green luminescent material is La3-vSi6N11vTb and Ba1-s-tMgAl10O17sEu, tMn.
6. The light-emitting device according to claim 5, wherein the LED chip (2) has an emission peak wavelength in a range of 360 to 370 nm.
7. The light-emitting device according to claim 6, wherein the LED chip (2) has an emission peak wavelength range of 362-367 nm.
8. The light-emitting device according to claim 4, wherein the LED chip (2) emits light with a peak wavelength in a range of 380-420 nm, and the green luminescent material is Si6-zAlzOzN8-zkEu and Ba1-s-tMgAl10O17sEu, tMn.
9. The light-emitting device according to claim 8, wherein the LED chip (2) emits light having a peak wavelength range of 390 to 410 nm.
10. The light-emitting device according to claim 9, wherein the LED chip (2) has an emission peak wavelength in a range of 400 to 407 nm.
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