CN116463121A - Tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and preparation method thereof - Google Patents
Tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and preparation method thereof Download PDFInfo
- Publication number
- CN116463121A CN116463121A CN202310251952.XA CN202310251952A CN116463121A CN 116463121 A CN116463121 A CN 116463121A CN 202310251952 A CN202310251952 A CN 202310251952A CN 116463121 A CN116463121 A CN 116463121A
- Authority
- CN
- China
- Prior art keywords
- luminescent material
- near infrared
- broadband near
- lisc
- doped
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 59
- 238000002360 preparation method Methods 0.000 title claims abstract description 16
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 title claims abstract description 13
- WAEMQWOKJMHJLA-UHFFFAOYSA-N Manganese(2+) Chemical compound [Mn+2] WAEMQWOKJMHJLA-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 229910001430 chromium ion Inorganic materials 0.000 title claims abstract description 10
- 229910001437 manganese ion Inorganic materials 0.000 title claims abstract description 10
- 229910052706 scandium Inorganic materials 0.000 title claims abstract description 10
- SIXSYDAISGFNSX-UHFFFAOYSA-N scandium atom Chemical compound [Sc] SIXSYDAISGFNSX-UHFFFAOYSA-N 0.000 title claims abstract description 10
- 239000011651 chromium Substances 0.000 claims abstract description 49
- 239000011572 manganese Substances 0.000 claims abstract description 41
- 239000000126 substance Substances 0.000 claims abstract description 13
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 20
- 238000005406 washing Methods 0.000 claims description 19
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 claims description 18
- 238000001035 drying Methods 0.000 claims description 14
- 239000002244 precipitate Substances 0.000 claims description 14
- 238000003756 stirring Methods 0.000 claims description 14
- 239000008367 deionised water Substances 0.000 claims description 10
- 229910021641 deionized water Inorganic materials 0.000 claims description 10
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 10
- 239000012467 final product Substances 0.000 claims description 9
- 238000001816 cooling Methods 0.000 claims description 5
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 5
- 239000000203 mixture Substances 0.000 claims description 2
- 238000000034 method Methods 0.000 claims 2
- 238000010521 absorption reaction Methods 0.000 abstract description 9
- 238000004020 luminiscence type Methods 0.000 abstract description 6
- 238000001514 detection method Methods 0.000 description 3
- 235000019441 ethanol Nutrition 0.000 description 3
- 238000002189 fluorescence spectrum Methods 0.000 description 3
- 239000000047 product Substances 0.000 description 3
- 238000005303 weighing Methods 0.000 description 3
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000695 excitation spectrum Methods 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012984 biological imaging Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 229910052736 halogen Inorganic materials 0.000 description 1
- 150000002367 halogens Chemical class 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 230000004297 night vision Effects 0.000 description 1
- 238000000634 powder X-ray diffraction Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
- WFKWXMTUELFFGS-UHFFFAOYSA-N tungsten Chemical compound [W] WFKWXMTUELFFGS-UHFFFAOYSA-N 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- 239000010937 tungsten Substances 0.000 description 1
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
- C09K11/7704—Halogenides
- C09K11/7705—Halogenides with alkali or alkaline earth metals
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Inorganic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Luminescent Compositions (AREA)
Abstract
The invention discloses a tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and a preparation method thereof, wherein the chemical formula is as follows: k (K) 2 LiSc 1‑x‑y Mn x Cr y F 6 Wherein x=0.0005 to 0.003;0<y is less than or equal to 0.005, mn in the material 4+ And Cr (V) 3+ The absorption peaks of the blue light chip have obvious overlapping between 400 and 520 nanometers, and can be excited by the blue light chip at the same time; mn (Mn) 4+ Has strong narrow-band luminescence around 633 nanometers, and can be just coated with Cr 3+ Absorption peak between 520-750 nm to improve Cr 3+ The purpose of the luminous intensity.
Description
Technical field:
the invention relates to the technical field of inorganic luminescent materials, in particular to a tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and a preparation method thereof.
The background technology is as follows:
near Infrared (NIR) spectrum detection technology has the advantages of simplicity, rapidness, no damage, high resolution and the like, and is widely applied to the fields of biological imaging, plant illumination, food detection, industrial nondestructive detection, night vision and the like. Compared with the traditional near infrared light sources (such as tungsten lamps and halogen lamps), the NIRpc-LED has the advantages of energy conservation, high efficiency, small volume, environmental friendliness, long service life, adjustable luminescence and the like, so that the NIRpc-LED is paid attention to in recent years, and can be easily integrated into a smart phone or a wearable device, thereby promoting various integrated function applications.
In general, broadband near infrared luminescence can be achieved by doping Eu in a suitable host 2+ 、Mn 2+ 、Ni 2+ Or Cr 3+ Realized by Cr 3+ Activated phosphors are receiving increasing attention due to their inherent broadband near infrared emission and blue excitation properties. However, such Cr is caused by the low absorption rate of the 3d-3d electron transition of the space forbidden resistance 3+ The luminous efficiency of activated phosphors is generally low.
The invention comprises the following steps:
the invention aims to provide a tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and a preparation method thereof, wherein Mn in the material 4+ And Cr (V) 3+ The absorption peaks of the blue light chip have obvious overlapping between 400 and 520 nanometers, and can be excited by the blue light chip at the same time; mn (Mn) 4+ Has strong narrow-band luminescence around 633 nanometers, and can be just coated with Cr 3+ Absorption peak between 520-750 nm to improve Cr 3+ The purpose of the luminous intensity.
The invention is realized by the following technical scheme:
mn (Mn) 4+ Doped red luminescent material, the chemical formula is: k (K) 2 LiSc 1-x Mn x F 6 Where x=0.0005 to 0.003.
Preferably, x=0.001 to 0.003, and most preferably, x=0.001.
A tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material has a chemical formula: k (K) 2 LiSc 1-x-y Mn x Cr y F 6 Wherein x=0.0005 to 0.003;0<y≤0.005。
Preferably, x=0.001 to 0.003, and most preferably, x=0.001.
The Mn of 4+ DopingThe preparation method of the red luminescent material comprises the following steps:
k is added at room temperature in a molar ratio (1-x): x 2 LiScF 6 And K 2 MnF 6 Adding the mixture into hydrofluoric acid, stirring, centrifuging to obtain precipitate, washing with absolute ethyl alcohol, and drying at 75 ℃ to obtain the final product of red luminescent material.
The preparation method of the tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material comprises the following steps of:
(1) At room temperature, will (NH) 4 ScF 6 、(NH) 4 CrF 6 、Li(OH)·H 2 Adding O and KF (1-y) into deionized water (1-7-10), stirring, transferring the solution into a hydrothermal reaction kettle, maintaining the temperature at 200deg.C for 10 hr, naturally cooling to room temperature, centrifuging to obtain precipitate, washing with deionized water, washing with absolute ethanol, and drying at 75deg.C for 3 hr to obtain K 2 LiSc 1-y Cr y F 6 Broadband near infrared luminescent material;
(2) K is added at room temperature 2 LiSc 1-y Cr y F 6 Broadband near infrared luminescent material and K 2 MnF 6 Adding into hydrofluoric acid, stirring for 20 min, centrifuging to obtain precipitate, washing with absolute ethanol, and drying at 75deg.C for 3 hr to obtain K 2 LiSc 1-x-y Mn x Cr y F 6 Broadband near infrared luminescent materials.
Step (1), obtaining a pure phase only in the presence of excessive KF, and (NH) 4 ScF 6 、(NH) 4 CrF 6 、Li(OH)·H 2 O and KF are optimal in luminous intensity according to the ratio of (1-y): y to 1:10.
Step (2), K 2 LiSc 1-y Cr y F 6 And K 2 MnF 6 The molar ratio is (1-x): x.
The beneficial effects of the invention are as follows: mn of the invention 4+ And Cr (V) 3+ The absorption peaks of the blue light chip have obvious overlapping between 400 and 520 nanometers, and can be excited by the blue light chip at the same time; mn (Mn) 4+ Has strong narrow-band luminescence around 633 nanometers, and can be just coated with Cr 3+ Absorption peak between 520-750 nm, mn is introduced in the invention 4+ Can obviously strengthen K 2 LiSc 1-y Cr y F 6 Medium Cr 3+ Is a near infrared light emission intensity of (2).
Description of the drawings:
FIG. 1 is a Cr produced in example 2 3+ Activating the X-ray powder diffraction pattern of the broadband near infrared luminescent material.
FIG. 2 is a drawing of Cr produced in example 2 3+ Activation of broadband near infrared luminescent Material and Mn prepared in example 4 4+ Fluorescence excitation spectrum of the doped red luminescent material. As can be seen from FIG. 2, mn in the material 4+ And Cr (V) 3+ The absorption peaks of the blue light chip have obvious overlapping between 400 and 520 nanometers, and can be excited by the blue light chip at the same time.
FIG. 3 is a drawing of Cr produced in example 2 3+ Fluorescence excitation Spectrum of activated broadband near-infrared luminescent Material and Mn prepared in example 4 4+ Fluorescence emission spectrum of the doped red luminescent material. As can be seen from FIG. 3, mn in the material 4+ Has strong narrow-band luminescence around 633 nanometers, and can be just coated with Cr 3+ Absorption peaks lying between 520 and 750 nm.
FIG. 4 shows the products (K) obtained in examples 4-6 2 LiSc 1-x Mn x F 6 ) Luminous intensity versus graph. As can be seen from FIG. 4, when Mn 4+ The luminous intensity of the material is strongest at the content of x=0.001.
FIG. 5 shows fluorescence emission spectra of the products obtained in example 2 and example 7. As can be seen from FIG. 5, mn 4+ Can significantly enhance K by introducing 2 LiSc 0.999 Cr 0.001 F 6 Medium Cr 3+ Is a near infrared light emission intensity of (2).
FIG. 6 shows fluorescence emission spectra of the products obtained in example 3 and example 8. As can be seen from FIG. 6, mn 4+ Can significantly enhance K by introducing 2 LiSc 0.995 Cr 0.005 F 6 Medium Cr 3+ Is a near infrared light emission intensity of (2). .
The specific embodiment is as follows:
the following is a further illustration of the invention and is not a limitation of the invention.
Example 1:
a fluoride material has a chemical formula of K 2 LiScF 6 。
The preparation method of the fluoride material comprises the following steps:
at room temperature, weighing (NH) according to the molar ratio of 1:1:10 4 ScF 6 、Li(OH)·H 2 Adding O and KF into 25 ml of deionized water, stirring for 10 minutes, transferring the solution into a hydrothermal reaction kettle, preserving heat for 10 hours at 200 ℃, naturally cooling to room temperature, centrifuging the solution obtained in the steps to obtain precipitate, washing 3 times with deionized water, washing 3 times with ethanol, and drying for 3 hours at 75 ℃ to obtain a fluoride material.
Example 2
Cr (chromium) 3+ Doped broadband near infrared luminescent material with chemical formula of K 2 LiSc 0.999 Cr 0.001 F 6 。
Cr described above 3+ The preparation method of the doped broadband near infrared luminescent material comprises the following steps:
at room temperature, weighing (NH) according to the molar ratio of 0.999:0.001:1:10 4 ScF 6 、(NH) 4 CrF 6 、Li(OH)·H 2 Adding O and KF into 25 ml of deionized water, stirring for 10 minutes, transferring the solution into a hydrothermal reaction kettle, preserving heat for 10 hours at 200 ℃, naturally cooling to room temperature, centrifuging the solution obtained in the steps to obtain precipitate, washing 3 times with deionized water, washing 3 times with ethanol, and drying for 3 hours at 75 ℃ to obtain the final product broadband near infrared luminescent material.
Example 3
Cr (chromium) 3+ Doped broadband near infrared luminescent material with chemical formula of K 2 LiSc 0.995 Cr 0.005 F 6 。
Cr described above 3+ The preparation method of the doped broadband near infrared luminescent material comprises the following steps:
at room temperature, weighing (NH) according to the molar ratio of 0.995:0.005:1:10 4 ScF 6 、(NH) 4 CrF 6 、Li(OH)·H 2 Adding O and KF into 25 ml of deionized water, stirring for 10 minutes, transferring the solution into a hydrothermal reaction kettle, preserving heat for 10 hours at 200 ℃, naturally cooling to room temperature, centrifuging the solution obtained in the steps to obtain precipitate, washing 3 times with deionized water, washing 3 times with ethanol, and drying for 3 hours at 75 ℃ to obtain the final product broadband near infrared luminescent material.
Example 4
Mn (Mn) 4+ Doped red luminescent material with chemical formula of K 2 LiSc 0.9995 Mn 0.0005 F 6 。
Mn as described above 4+ The preparation method of the doped red luminescent material comprises the following steps:
k was added at room temperature in a molar ratio of 0.9995:0.0005 2 LiScF 6 And K 2 MnF 6 Adding into 1.00 ml of hydrofluoric acid, stirring for 20 minutes, centrifuging the solution to obtain a precipitate, washing 3 times with absolute ethanol, and drying at 75 ℃ for 3 hours to obtain a final product of red luminescent material.
Example 5
Mn (Mn) 4+ Doped red luminescent material with chemical formula of K 2 LiSc 0.999 Mn 0.001 F 6 。
Mn as described above 4+ The preparation method of the doped red luminescent material comprises the following steps:
k was added at room temperature in a molar ratio of 0.999:0.001 2 LiScF 6 And K 2 MnF 6 Adding into 1.00 ml of hydrofluoric acid, stirring for 20 minutes, centrifuging the solution to obtain a precipitate, washing 3 times with absolute ethanol, and drying at 75 ℃ for 3 hours to obtain a final product of red luminescent material.
Example 6
Mn (Mn) 4+ Doped red luminescent material with chemical formula of K 2 LiSc 0.997 Mn 0.003 F 6 。
Mn as described above 4+ The preparation method of the doped red luminescent material comprises the following steps:
k is added at room temperature according to the molar ratio of 0.993:0.003 2 LiScF 6 And K 2 MnF 6 Adding into 1.00 ml of hydrofluoric acid, stirring for 20 minutes, centrifuging the solution to obtain a precipitate, washing 3 times with absolute ethanol, and drying at 75 ℃ for 3 hours to obtain a final product of red luminescent material.
Example 7
Mn (Mn) 4+ And Cr (V) 3+ Co-doped broadband near infrared luminescent material with chemical formula of K 2 LiSc 0.998 Mn 0.001 Cr 0.001 F 6 。
Mn as described above 4+ And Cr (V) 3+ The preparation method of the co-doped broadband near infrared luminescent material comprises the following steps:
k was added at room temperature in a molar ratio of 0.999:0.001 2 LiSc 0.999 Cr 0.001 F 6 And K 2 MnF 6 Adding into 1.00 ml of hydrofluoric acid, stirring for 20 minutes, centrifuging the solution to obtain a precipitate, washing 3 times with absolute ethanol, and drying at 75 ℃ for 3 hours to obtain a final product of red luminescent material.
Example 8
Mn (Mn) 4+ And Cr (V) 3+ Co-doped broadband near infrared luminescent material with chemical formula of K 2 LiSc 0.994 Mn 0.001 Cr 0.005 F 6 。
Mn as described above 4+ And Cr (V) 3+ The preparation method of the co-doped broadband near infrared luminescent material comprises the following steps:
k was added at room temperature in a molar ratio of 0.999:0.001 2 LiSc 0.995 Cr 0.005 F 6 And K 2 MnF 6 Adding into 1.00 ml of hydrofluoric acid, stirring for 20 minutes, centrifuging the solution to obtain a precipitate, washing 3 times with absolute ethanol, and drying at 75 ℃ for 3 hours to obtain a final product of red luminescent material.
Claims (7)
1. Mn (Mn) 4+ The doped red luminescent material is characterized by having the chemical formula: k (K) 2 LiSc 1-x Mn x F 6 Where x=0.0005 to 0.003.
2. The red light-emitting material according to claim 1, wherein x=0.001 to 0.003.
3. A tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material is characterized by comprising the following chemical formula: k (K) 2 LiSc 1-x-y Mn x Cr y F 6 Wherein x=0.0005 to 0.003;0<y≤0.005。
4. A broadband near infrared light emitting material according to claim 3, wherein x = 0.001-0.003.
5. Mn as claimed in claim 1 4+ The preparation method of the doped red luminescent material is characterized by comprising the following steps: k is added at room temperature in a molar ratio (1-x): x 2 LiScF 6 And K 2 MnF 6 Adding the mixture into hydrofluoric acid, stirring, centrifuging to obtain precipitate, washing with absolute ethyl alcohol, and drying at 75 ℃ to obtain the final product of red luminescent material.
6. A method for preparing the tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material according to claim 3, which is characterized by comprising the following steps:
(1) At room temperature, will (NH) 4 ScF 6 、(NH) 4 CrF 6 、Li(OH)·H 2 Adding O and KF (1-y) into deionized water (1-7-10), stirring, transferring the solution into a hydrothermal reaction kettle, maintaining the temperature at 200deg.C for 10 hr, naturally cooling to room temperature, centrifuging to obtain precipitate, washing with deionized water, washing with absolute ethanol, and drying at 75deg.C for 3 hr to obtain K 2 LiSc 1-y Cr y F 6 Broadband near infrared luminescent material;
(2) K is added at room temperature 2 LiSc 1-y Cr y F 6 Broadband near infrared luminescent material and K 2 MnF 6 Adding into hydrofluoric acid, stirring for 20 min, centrifuging to obtain precipitate,washing with absolute ethanol, and drying at 75deg.C for 3 hr to obtain K 2 LiSc 1-x-y Mn x Cr y F 6 Broadband near infrared luminescent materials.
7. The method for preparing a tetravalent manganese ion and chromium ion co-doped scandium based fluoride broadband near infrared luminescent material according to claim 6, wherein in step (2), K 2 LiSc 1-y Cr y F 6 And K 2 MnF 6 The molar ratio is (1-x): x.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310251952.XA CN116463121B (en) | 2023-03-16 | 2023-03-16 | Tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and preparation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310251952.XA CN116463121B (en) | 2023-03-16 | 2023-03-16 | Tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and preparation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN116463121A true CN116463121A (en) | 2023-07-21 |
| CN116463121B CN116463121B (en) | 2024-02-02 |
Family
ID=87176179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310251952.XA Active CN116463121B (en) | 2023-03-16 | 2023-03-16 | Tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and preparation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116463121B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733572A (en) * | 2016-03-24 | 2016-07-06 | 中山大学 | Red fluoride fluorescent powder as well as preparation method and application thereof |
| CN112457847A (en) * | 2020-10-26 | 2021-03-09 | 新沂市锡沂高新材料产业技术研究院有限公司 | Mn/Cr co-doped Li2MgAO4Near-infrared fluorescent powder and preparation method thereof |
| CN115651655A (en) * | 2022-11-16 | 2023-01-31 | 云南民族大学 | Near-infrared luminescent material with ultrahigh fluorescence thermal stability, and preparation method and application thereof |
-
2023
- 2023-03-16 CN CN202310251952.XA patent/CN116463121B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105733572A (en) * | 2016-03-24 | 2016-07-06 | 中山大学 | Red fluoride fluorescent powder as well as preparation method and application thereof |
| CN112457847A (en) * | 2020-10-26 | 2021-03-09 | 新沂市锡沂高新材料产业技术研究院有限公司 | Mn/Cr co-doped Li2MgAO4Near-infrared fluorescent powder and preparation method thereof |
| CN115651655A (en) * | 2022-11-16 | 2023-01-31 | 云南民族大学 | Near-infrared luminescent material with ultrahigh fluorescence thermal stability, and preparation method and application thereof |
Non-Patent Citations (1)
| Title |
|---|
| FANQUAN HE ET AL.: "A General Ammonium Salt Assisted Synthesis Strategy for Cr3+-Doped Hexafluorides with Highly Efficient Near Infrared Emissions", 《ADV. FUNCT. MATER.》, vol. 31, pages 1 - 11 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN116463121B (en) | 2024-02-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Guo et al. | A promising red-emitting phosphor for white light emitting diodes prepared by sol–gel method | |
| Xiao et al. | Ba2Ca (B3O6) 2: Eu2+, Mn2+: A potential tunable blue–white–red phosphors for white light-emitting diodes | |
| Rajendran et al. | High performance red/deep-red emitting phosphors for white LEDs | |
| Yan et al. | Facile synthesis of Ce3+, Eu3+ co-doped YAG nanophosphor for white light-emitting diodes | |
| Xue et al. | A far-red phosphor LaSrZnNbO6: Mn4+ for plant growth lighting | |
| CN112457847B (en) | Mn/Cr co-doped Li 2 MgAO 4 Near infrared fluorescent powder and preparation method thereof | |
| Zhao et al. | A novel high thermal stability Ba2CaWO6: Mn4+ far-red emitting phosphor with a double-perovskite structure for plant growth LEDs | |
| CN106554776B (en) | A kind of effective fluoride red fluorescence powder, preparation method thereof of blue-light semiconductor light-emitting diodes | |
| Haque et al. | Eu3+-activated potential red-emitting phosphor for solid-state lighting | |
| CN107603622B (en) | Vanadate luminescent material and preparation method thereof | |
| CN107629791B (en) | Mn (manganese)4+Ion-doped red fluorescent powder, preparation method and application | |
| CN116463121B (en) | Tetravalent manganese ion and chromium ion co-doped scandium-based fluoride broadband near infrared luminescent material and preparation method thereof | |
| CN112694889A (en) | Fe3+Gallate-doped near-infrared long-afterglow luminescent material and preparation method and application thereof | |
| CN112266784A (en) | CsCdCl with broadband blue light emission3:xSb3+Single crystal and method for producing the same | |
| CN114672310A (en) | Pyrophosphate near-infrared fluorescent powder and preparation method and application thereof | |
| CN110724529A (en) | Blue light excitation Mn doping4+Molybdate red luminescent material and synthetic method thereof | |
| CN111560247A (en) | Nitride fluorescent powder capable of emitting dark red light for agricultural illumination and preparation method thereof | |
| CN116554875A (en) | Preparation method of rare earth ion doped layered double perovskite fluorescent material | |
| CN108822842B (en) | Red strontium magnesium phosphate fluorescent material and preparation method and application thereof | |
| Liu et al. | Highly enhanced f–f transitions of Eu3+ in La2O3 phosphor via citric acid and poly (ethylene glycol) precursor route | |
| CN114106829B (en) | Mn (Mn) 2+ Red-light-doped long-afterglow luminescent material and preparation method thereof | |
| CN114214063A (en) | Preparation method of single-matrix white light emitting carbon dot fluorescent powder | |
| CN106867527B (en) | A kind of Mn2+BCNO based luminescent material of doping and preparation method thereof | |
| CN107936961B (en) | Mn with high radiation efficiency4+Activated fluoroaluminate red fluorescent powder and preparation method thereof | |
| CN105038780B (en) | Preparation method of bluish violet light-excited red luminescent material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |