CN106893583A - A kind of zincate green emitting phosphor and preparation method thereof - Google Patents
A kind of zincate green emitting phosphor and preparation method thereof Download PDFInfo
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- CN106893583A CN106893583A CN201710099771.4A CN201710099771A CN106893583A CN 106893583 A CN106893583 A CN 106893583A CN 201710099771 A CN201710099771 A CN 201710099771A CN 106893583 A CN106893583 A CN 106893583A
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/59—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing silicon
- C09K11/592—Chalcogenides
- C09K11/595—Chalcogenides with zinc or cadmium
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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
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- C09K11/00—Luminescent, e.g. electroluminescent, chemiluminescent materials
- C09K11/08—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials
- C09K11/66—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing germanium, tin or lead
- C09K11/661—Chalcogenides
- C09K11/662—Chalcogenides with zinc or cadmium
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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
- C09K11/67—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing refractory metals
- C09K11/671—Chalcogenides
- C09K11/672—Chalcogenides with zinc or cadmium
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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
- C09K11/88—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing selenium, tellurium or unspecified chalcogen elements
- C09K11/881—Chalcogenides
- C09K11/883—Chalcogenides with zinc or cadmium
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Abstract
The present invention relates to luminescent material technical field.A kind of zincate green emitting phosphor, with following chemical representation：M3Zn2‑xO8：xMn2+, M is any one in Si, Ge, Ti, Zr, Sn, Te, and x is 0.001~0.1.The advantage of the zincate green emitting phosphor is free from price rare earth element costly, with the bandwidth that excites wide, covers ultraviolet, purple light and blue region, and the transmitting overlap of peaks with ultraviolet chip is good, can effectively be excited.
Description
Technical field
The present invention relates to luminescent material technical field, more particularly, to zincate green emitting phosphor and preparation method thereof.
Background technology
White light LEDs are a kind of solid-state semiconductor devices for converting electrical energy into white light, also known as semiconductor lighting, with efficiency
Many advantages, such as height, small volume, long lifespan, safety, low-voltage, energy-saving and environmental protection, by people regard as after incandescent lamp, fluorescent lamp,
Forth generation lighting source after high-voltage gas discharging light, is the main product in following illumination market.
Various white light LEDs preparation methods, wherein blue-light LED chip and yellow fluorescent material group are occurred in that at present
Close, blue-light LED chip with red and green fluorescent material is combined, purple LED chip combines these three with fluorescent material with three basic colour
Method with price it is low, prepare and simple turn into the main method for preparing white light LEDs.Blue-light LED chip is combined with yellow fluorescent material
It is that research is also earliest most ripe method, the white light LEDs luminous efficiency of preparation is considerably beyond incandescent lamp, but colour developing refers to
Number is low, and colour temperature is high, it is impossible to used as room lighting.In order to improve the colour rendering of white light LEDs, scientists from all over the world have developed blue light
LED chip is combined with red, green fluorescent material and purple LED chip combines other two kinds with red, green, blue fluorescent material with three basic colour
The method for realizing white light LEDs.
The launch wavelength of current InGaN chips has moved near ultraviolet region, can provide excitation energy higher for fluorescent material
Amount, further improves the light intensity of white light LEDs.Because ultraviolet light is invisible, the color of burst of ultraviolel white light LEDs can only be by fluorescent material
Determine, therefore colour stable, colour rendering index is high, using near ultraviolet InGaN chips and indigo plant, Huang fluorescent material or with three primary colours fluorescence
The scheme that powder combines to realize white light turns into the emphasis of current white light LEDs industry development.Green emitting phosphor is can not in the program
The composition for lacking.
Traditional phosphor material powder all relies on greatly activator or coactivator is luminous, and activator is generally from rare earth unit
Element, rare earth element price is higher and its oxide, chloride and sal limonis are toxic, in addition phosphor material powder prepare it is past
It is past to need the more exacting terms such as high temperature reducing atmospheres.Therefore, the preparation of economic and environment-friendly fluorescent material and it is applied in order to must
Will.
The content of the invention
It is an object of the present invention to provide a kind of low cost, ultraviolet, purple light and blue region are covered, with ultraviolet chip
Transmitting overlap of peaks is good, the zincate green emitting phosphor that can be effectively excited.It is a further object to provide above-mentioned zinc
The preparation method of hydrochlorate green emitting phosphor.
To achieve the above object, the technical solution used in the present invention is：A kind of zincate green emitting phosphor, with as follows
Chemical representation：M3Zn2-xO8：xMn2+, M is any one in Si, Ge, Ti, Zr, Sn, Te, and x is 0.001~0.1.
A kind of preparation method of zincate green emitting phosphor, comprises the following steps：(1) with the oxide containing M, zinc oxide
And manganese carbonate, by chemical expression M3Zn2-xO8：xMn2+Mol ratio weigh the raw material, wherein, M be Si, Ge, Ti, Zr, Sn
With in Te any one, x be 0.001~0.1；(2) mixture is loaded into crucible, in 950 under reducing atmosphere in high temperature furnace
Sintered 2~7 hours under the conditions of~1150 DEG C, after be cooled to room temperature and obtain the zincate green emitting phosphor.
Further, the oxide containing M is silica, germanium oxide, titanium oxide, zirconium oxide, tin oxide and oxidation
In tellurium any one.
Further, the reducing atmosphere is nitrogen and hydrogen mixture or CO atmosphere.
Using the zincate green emitting phosphor of above-mentioned technical proposal, compared with prior art, the beneficial effects of the invention are as follows：
(1) fluorescent material of the invention is free of price rare earth element costly, and preparation condition is gentle, it is not necessary to high temperature；(2) this hair
Bright green emitting phosphor has the bandwidth that excites wide, covers ultraviolet, purple light and blue region, and excitation peak is located near 365nm, with
The transmitting overlap of peaks of ultraviolet chip very well, can effectively be excited.
Brief description of the drawings
Fig. 1 is fluorescent powder launching light spectrogram prepared by the embodiment 1 that the present invention is provided；
Fig. 2 is fluorescent powder exciting light spectrogram prepared by the embodiment 1 that the present invention is provided.
Specific embodiment
This patent is described in detail with reference to embodiment and accompanying drawing.
Embodiment 1
According to Si3Zn1.999O8：0.001Mn2+Weigh SiO2, ZnO and MnCO3, the mol ratio between them is 3：1.999：
0.001, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is cooled down afterwards in being calcined 7 hours at 950 DEG C under CO atmosphere
To room temperature, zincate green emitting phosphor is obtained.
365 nanometers of the excitation wavelength of Fig. 1,536 nanometers of the supervisory wavelength of Fig. 2.As shown in Fig. 2 the fluorescent material of the present embodiment
PLE is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located near 365nm, and spectrum peak is high, explanation
The fluorescent material of the present embodiment can effectively be excited by ultraviolet and purple light chip.When the excitation wavelength of emission spectrum is 365nm, such as scheme
Shown in 1, the fluorescent material of the present embodiment is emitted as broadband green emission, and emission peak is located near 536nm, illustrate the present embodiment
Fluorescent material is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 2
According to Si3Zn1.995O8：0.005Mn2+Weigh SiO2, ZnO and MnCO3, the mol ratio between them is 3：1.995：
0.005, it is fully ground after being well mixed, in placement crucible, then high temperature furnace at 1000 DEG C under CO atmosphere in being calcined 5 hours, rear cold
But room temperature is arrived, zincate green emitting phosphor is obtained.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 3
According to Si3Zn1.99O8：0.01Mn2+Weigh SiO2, ZnO and MnCO3, the mol ratio between them is 3：1.99：
0.01, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2The nitrogen and hydrogen mixture of (volume ratio)
Under atmosphere, 1050 DEG C be calcined 4 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 4
According to Si3Zn1.95O8：0.05Mn2+Weigh SiO2, ZnO and MnCO3, the mol ratio between them is 3：1.95：
0.05, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2The nitrogen and hydrogen mixture of (volume ratio)
Under atmosphere, 1100 DEG C be calcined 3 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 5
According to Si3Zn1.9O8：0.1Mn2+Weigh SiO2, ZnO and MnCO3, the mol ratio between them is 3：1.9：0.1, fill
After dividing ground and mixed uniform, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2Under the nitrogen and hydrogen mixture atmosphere of (volume ratio),
1150 DEG C be calcined 2 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 6
According to Ge3Zn1.999O8：0.001Mn2+Weigh GeO2, ZnO and MnCO3, the mol ratio between them is 3：1.999：
0.001, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is cooled down afterwards in being calcined 7 hours at 950 DEG C under CO atmosphere
To room temperature, zincate green emitting phosphor is obtained.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 7
According to Ge3Zn1.9O8：0.1Mn2+Weigh GeO2, ZnO and MnCO3, the mol ratio between them is 3：1.9：0.1, fill
After dividing ground and mixed uniform, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2Under the nitrogen and hydrogen mixture atmosphere of (volume ratio),
1150 DEG C be calcined 2 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 8
According to Ti3Zn1.999O8：0.001Mn2+Weigh TiO2, ZnO and MnCO3, the mol ratio between them is 3：1.999：
0.001, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is cooled down afterwards in being calcined 7 hours at 950 DEG C under CO atmosphere
To room temperature, zincate green emitting phosphor is obtained.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 9
According to Ti3Zn1.9O8：0.1Mn2+Weigh TiO2, ZnO and MnCO3, the mol ratio between them is 3：1.9：0.1, fill
After dividing ground and mixed uniform, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2Under the nitrogen and hydrogen mixture atmosphere of (volume ratio),
1150 DEG C be calcined 2 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 10
According to Zr3Zn1.999O8：0.001Mn2+Weigh ZrO2, ZnO and MnCO3, the mol ratio between them is 3：1.999：
0.001, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is cooled down afterwards in being calcined 7 hours at 950 DEG C under CO atmosphere
To room temperature, zincate green emitting phosphor is obtained.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 11
According to Zr3Zn1.9O8：0.1Mn2+Weigh ZrO2, ZnO and MnCO3, the mol ratio between them is 3：1.9：0.1, fill
After dividing ground and mixed uniform, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2Under the nitrogen and hydrogen mixture atmosphere of (volume ratio),
1150 DEG C be calcined 2 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 12
According to Sn3Zn1.999O8：0.001Mn2+Weigh SnO2, ZnO and MnCO3, the mol ratio between them is 3：1.999：
0.001, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is cooled down afterwards in being calcined 7 hours at 950 DEG C under CO atmosphere
To room temperature, zincate green emitting phosphor is obtained.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 13
According to Sn3Zn1.9O8：0.1Mn2+Weigh SnO2, ZnO and MnCO3, the mol ratio between them is 3：1.9：0.1, fill
After dividing ground and mixed uniform, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2Under the nitrogen and hydrogen mixture atmosphere of (volume ratio),
1150 DEG C be calcined 2 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 14
According to Te3Zn1.999O8：0.001Mn2+Weigh TeO2, ZnO and MnCO3, the mol ratio between them is 3：1.999：
0.001, it is fully ground after being well mixed, in placement crucible, then high temperature furnace is cooled down afterwards in being calcined 7 hours at 950 DEG C under CO atmosphere
To room temperature, zincate green emitting phosphor is obtained.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Embodiment 15
According to Te3Zn1.9O8：0.1Mn2+Weigh TeO2, ZnO and MnCO3, the mol ratio between them is 3：1.9：0.1, fill
After dividing ground and mixed uniform, in placement crucible, then high temperature furnace is in 5%H2+ 95%N2Under the nitrogen and hydrogen mixture atmosphere of (volume ratio),
1150 DEG C be calcined 2 hours, after be cooled to room temperature, obtain zincate green emitting phosphor.
The fluorescent material PLE of the present embodiment is a wide range, covers ultraviolet, purple light and blue region, and excitation peak is located at
Near 365nm, spectrum peak is high, illustrates the fluorescent material of the present embodiment and can effectively be excited by ultraviolet and purple light chip.Work as transmitting
The excitation wavelength of spectrum is 536nm, and the fluorescent material of the present embodiment is emitted as broadband green emission, and it is attached that emission peak is located at 365nm
Closely, illustrate that the fluorescent material of the present embodiment is adapted to do ultraviolet, purple light and blue light activated green emitting phosphor.
Claims (4)
1. a kind of zincate green emitting phosphor, it is characterised in that the fluorescent material has following chemical representation：M3Zn2-xO8：xMn2+,
M is any one in Si, Ge, Ti, Zr, Sn, Te, and x is 0.001~0.1.
2. a kind of preparation method of zincate green emitting phosphor, it is characterised in that comprise the following steps：
(1) with the oxide containing M, zinc oxide and manganese carbonate, by chemical expression M3Zn2-xO8：xMn2+Mol ratio weigh institute
Raw material is stated, wherein, M is any one in Si, Ge, Ti, Zr, Sn and Te, and x is 0.001~0.1；
(2) mixture is loaded into crucible, sintering 2~7 is small under the conditions of under reducing atmosphere 950~1150 DEG C in high temperature furnace
When, after be cooled to room temperature and obtain the zincate green emitting phosphor.
3. the preparation method of zincate green emitting phosphor as claimed in claim 2, it is characterised in that the oxide containing M is
In silica, germanium oxide, titanium oxide, zirconium oxide, tin oxide and tellurium oxide any one.
4. the preparation method of zincate green emitting phosphor as claimed in claim 2, it is characterised in that the reducing atmosphere is nitrogen hydrogen
Gaseous mixture or CO atmosphere.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583948A (en) * | 2004-06-09 | 2005-02-23 | 中国科学院上海硅酸盐研究所 | Preparation of manganesium zinc silicate doped green fluorescent powder from porous silicon dioxide |
| CN1702144A (en) * | 2005-06-13 | 2005-11-30 | 上海师范大学 | Rare earth nano zincate red phosphor for semiconductor lighting device and its preparation method |
| CN101007945A (en) * | 2007-01-22 | 2007-08-01 | 陕西师范大学 | Method for low temperature synthesis of zinc magnesium silicate green florescent powder of regular particle shape |
-
2017
- 2017-02-23 CN CN201710099771.4A patent/CN106893583B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1583948A (en) * | 2004-06-09 | 2005-02-23 | 中国科学院上海硅酸盐研究所 | Preparation of manganesium zinc silicate doped green fluorescent powder from porous silicon dioxide |
| CN1702144A (en) * | 2005-06-13 | 2005-11-30 | 上海师范大学 | Rare earth nano zincate red phosphor for semiconductor lighting device and its preparation method |
| CN101007945A (en) * | 2007-01-22 | 2007-08-01 | 陕西师范大学 | Method for low temperature synthesis of zinc magnesium silicate green florescent powder of regular particle shape |
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