CN115259663A - All-inorganic perovskite quantum dot composite glass and preparation method thereof - Google Patents
All-inorganic perovskite quantum dot composite glass and preparation method thereof Download PDFInfo
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- CN115259663A CN115259663A CN202210975525.1A CN202210975525A CN115259663A CN 115259663 A CN115259663 A CN 115259663A CN 202210975525 A CN202210975525 A CN 202210975525A CN 115259663 A CN115259663 A CN 115259663A
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- 239000011521 glass Substances 0.000 title claims abstract description 97
- 239000002096 quantum dot Substances 0.000 title claims abstract description 83
- 239000002131 composite material Substances 0.000 title claims abstract description 42
- 238000002360 preparation method Methods 0.000 title abstract description 11
- 239000000758 substrate Substances 0.000 claims abstract description 25
- 239000011159 matrix material Substances 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 claims abstract description 10
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 claims description 18
- 239000002994 raw material Substances 0.000 claims description 15
- 239000011787 zinc oxide Substances 0.000 claims description 9
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000005245 sintering Methods 0.000 claims description 7
- 238000005266 casting Methods 0.000 claims description 6
- 238000000465 moulding Methods 0.000 claims description 6
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 4
- 229910007472 ZnO—B2O3—SiO2 Inorganic materials 0.000 claims description 3
- ZOXJGFHDIHLPTG-BJUDXGSMSA-N Boron-10 Chemical compound [10B] ZOXJGFHDIHLPTG-BJUDXGSMSA-N 0.000 claims description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 2
- 229910052810 boron oxide Inorganic materials 0.000 claims description 2
- 229910052802 copper Inorganic materials 0.000 claims description 2
- 239000010949 copper Substances 0.000 claims description 2
- JKWMSGQKBLHBQQ-UHFFFAOYSA-N diboron trioxide Chemical compound O=BOB=O JKWMSGQKBLHBQQ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052742 iron Inorganic materials 0.000 claims description 2
- 229910052814 silicon oxide Inorganic materials 0.000 claims description 2
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 2
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 2
- 229910001220 stainless steel Inorganic materials 0.000 claims description 2
- 239000010935 stainless steel Substances 0.000 claims description 2
- 229910004298 SiO 2 Inorganic materials 0.000 abstract description 7
- 238000011065 in-situ storage Methods 0.000 abstract description 5
- 229910052792 caesium Inorganic materials 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 abstract description 2
- 229910000287 alkaline earth metal oxide Inorganic materials 0.000 abstract 1
- 238000010791 quenching Methods 0.000 abstract 1
- 230000000171 quenching effect Effects 0.000 abstract 1
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 6
- 239000004570 mortar (masonry) Substances 0.000 description 6
- 239000011734 sodium Substances 0.000 description 6
- 229910052593 corundum Inorganic materials 0.000 description 5
- 239000010431 corundum Substances 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 238000004020 luminiscence type Methods 0.000 description 4
- 238000002844 melting Methods 0.000 description 4
- 230000008018 melting Effects 0.000 description 4
- JHJLBTNAGRQEKS-UHFFFAOYSA-M sodium bromide Chemical compound [Na+].[Br-] JHJLBTNAGRQEKS-UHFFFAOYSA-M 0.000 description 4
- 239000006121 base glass Substances 0.000 description 3
- 229910052796 boron Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000005284 excitation Effects 0.000 description 3
- 238000002189 fluorescence spectrum Methods 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 229910052809 inorganic oxide Inorganic materials 0.000 description 3
- 239000000075 oxide glass Substances 0.000 description 3
- 239000011780 sodium chloride Substances 0.000 description 3
- 238000001228 spectrum Methods 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 238000004321 preservation Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000005303 weighing Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000005388 borosilicate glass Substances 0.000 description 1
- TVFDJXOCXUVLDH-UHFFFAOYSA-N caesium atom Chemical compound [Cs] TVFDJXOCXUVLDH-UHFFFAOYSA-N 0.000 description 1
- -1 cesium halide Chemical class 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 150000004820 halides Chemical class 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000003446 ligand Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 230000005693 optoelectronics Effects 0.000 description 1
- 239000005365 phosphate glass Substances 0.000 description 1
- 239000006064 precursor glass Substances 0.000 description 1
- 239000011241 protective layer Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- SITVSCPRJNYAGV-UHFFFAOYSA-L tellurite Chemical compound [O-][Te]([O-])=O SITVSCPRJNYAGV-UHFFFAOYSA-L 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C1/00—Ingredients generally applicable to manufacture of glasses, glazes, or vitreous enamels
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B19/00—Other methods of shaping glass
- C03B19/02—Other methods of shaping glass by casting molten glass, e.g. injection moulding
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B5/00—Melting in furnaces; Furnaces so far as specially adapted for glass manufacture
- C03B5/16—Special features of the melting process; Auxiliary means specially adapted for glass-melting furnaces
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/062—Glass compositions containing silica with less than 40% silica by weight
- C03C3/07—Glass compositions containing silica with less than 40% silica by weight containing lead
- C03C3/072—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron
- C03C3/074—Glass compositions containing silica with less than 40% silica by weight containing lead containing boron containing zinc
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C4/00—Compositions for glass with special properties
- C03C4/12—Compositions for glass with special properties for luminescent glass; for fluorescent glass
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
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Abstract
The invention discloses all-inorganic perovskite quantum dot composite glass and a preparation method thereof, wherein the all-inorganic perovskite quantum dot composite glass comprises a glass substrate, a modified oxide and a perovskite substrate, wherein the perovskite substrate accounts for 5-30 mol% of the glass substrate; the all-inorganic perovskite quantum dots are lead-cesium halide perovskite quantum dots; the glass matrix is B 2 O 3 ‑SiO 2 -ZnO glass system, stable physicochemical properties; what is needed isThe modified oxide is alkaline earth metal oxide, and can adjust the network dimensionality of the glass and promote the perovskite quantum dots to be more easily precipitated in situ in the glass; the preparation method of the all-inorganic perovskite quantum dot composite glass is a one-step melting-cold quenching method, and a heat treatment process is not needed.
Description
Technical Field
The invention relates to the technical field of quantum dot luminescent materials, in particular to composite quantum dot glass and a preparation method thereof.
Background
In recent years, fully inorganic perovskite CsPbX 3 Quantum dots (X = Cl, br, I) have attracted a great deal of attention, exhibiting extraordinary application potential in the field of optoelectronics, mainly because of their unique optical properties: adjustable emission wavelength, wide absorption, wide color gamut, high quantum efficiency and the like. CsPbX 3 The preparation process of the quantum dots is simple, the color modulation in the full visible light range can be realized through simple ion exchange, the high-luminescence quantum efficiency is obtained through surface ligand modification, and the high-brightness quantum dot film and powder can be prepared through substrate coating. However, due to CsPbX 3 The intrinsic ion property and low formation energy of the quantum dots cannot be effectively solved all the time, and particularly after the quantum dots are made into films or powder, the quantum efficiency is rapidly reduced, so that the practical application of the quantum dots in photoelectric devices is severely restricted.
CsPbX is crystallized by in-situ crystallization method 3 The preparation scheme of quantum dots embedded in inorganic oxide glass has proven to be a simple and effective strategy to improve the stability of quantum dots. Because the inorganic oxide glass acts as a protective layer to prevent the internal quantum dots from contacting the outside. Many low melting point inorganic oxide glass substrates have been demonstrated to precipitate perovskite quantum dots in situ, such as borosilicate glasses, borogermanate glasses, tellurite glasses, phosphate glasses, and the like. However, unlike the wet chemical preparation of colloidal quantum dots, csPbX is grown in situ in glass 3 The quantum dots are often restricted by the glass matrix network structure, and the compact glass network seriously inhibits Cs + 、Pb 2+ 、X - Diffusion of plasma to cause CsPbX 3 Quantum dot glass is generally low in luminous efficiency. Moreover, the reported preparation method of the perovskite quantum dot glass usually needs a two-step method, and after precursor glass is prepared by high-temperature melting, the subsequent heat treatment or laser induction and other modes are neededCan separate out perovskite quantum dots in the glass.
Disclosure of Invention
In order to solve the problems, the invention provides all-inorganic perovskite quantum dot composite glass which comprises a glass substrate, a glass modified oxide and an inorganic perovskite quantum dot substrate, wherein the glass substrate is Na 2 O-ZnO-B 2 O 3 -SiO 2 The system comprises 5-20% of the glass substrate by the glass modified oxide and 5-30% of the glass substrate by the molar ratio of the all-inorganic perovskite quantum dot substrate.
Preferably, the glass-modifying oxide may be one or more of MgO, caO, srO and BaO
Preferably, the quantum dot matrix of the all-inorganic perovskite is lead cesium perovskite Cs halide 2 CO 3 -PbO-AX (A: one or more of Li, na, K; X: one or more of Cl, br, I).
Preferably, the composition of the all-inorganic perovskite quantum dot matrix raw material is Cs 2 CO 3 -PbO-AX (A: one or more of Li, na, K; X: one or more of Cl, br, I).
Preferably, the glass substrate comprises 10 to 20mol% of sodium oxide, 10 to 30mol% of zinc oxide, 40 to 60mol% of boron oxide, and 10 to 30mol% of silicon oxide.
Preferably, the thickness of the all-inorganic perovskite quantum dot composite glass is 0.05-3mm.
Preferably, the emission wavelength of the all-inorganic perovskite is 440-680nm.
Based on the same inventive concept, the invention provides a preparation method of composite quantum dot glass, which comprises the following steps
S1: adding the glass modified oxide and the all-inorganic perovskite quantum dot matrix raw material into the glass matrix, and sintering to obtain a molten mass;
s2: casting and molding the molten mass to obtain the all-inorganic perovskite quantum dot composite glass;
preferably, the sintering temperature in the S1 is 900-1350 ℃, and the sintering time is 5-60 min.
Preferably, the S2 is formed by casting the melt in a mold with a preheating temperature of 200-300 ℃, preserving heat for 0.5-3 h, and then naturally cooling.
Preferably, the mold is an iron plate, a copper plate, or a stainless steel plate.
The invention has the beneficial effects that:
(1) The all-inorganic perovskite quantum dot composite glass is prepared by adding Na 2 O-ZnO-B 2 O 3 -SiO 2 As a matrix glass system, the borosilicate system glass has high transparency and stable physical and chemical properties, and simultaneously, na 2 The melting temperature of the glass can be effectively reduced by O and ZnO, the structural dimension of the glass network can be adjusted by the glass modified oxide, so that the glass network is softer, the full-inorganic perovskite quantum dots can be separated out in situ in the glass more easily, pbO in the matrix raw material of the full-inorganic perovskite quantum dots can reduce the melting point of the glass and can be used as Pb element required by the perovskite, and the formation of the full-inorganic perovskite quantum dots is further promoted.
(2) The preparation method of the all-inorganic perovskite quantum dot composite glass is simple, the raw material of the matrix glass, the glass modified oxide and the all-inorganic perovskite quantum dot raw material are fully mixed according to a certain proportion, and the all-inorganic perovskite quantum dot composite glass can be obtained by one-step sintering. In particular, the invention can be used in LED and display technology.
Drawings
FIG. 1 is a fluorescence emission spectrum of an all-inorganic perovskite quantum dot composite glass prepared in example 1 of the present invention;
FIG. 2 is a coupling luminescence diagram of the full inorganic perovskite quantum dot composite glass and the chip prepared in example 1 of the present invention;
FIG. 3 is a fluorescence emission spectrum of the all-inorganic perovskite quantum dot composite glass prepared in example 2 of the present invention;
FIG. 4 is a coupling luminescence diagram of the all-inorganic perovskite quantum dot composite glass and a chip prepared in example 2 of the present invention;
FIG. 5 is a fluorescence emission spectrum of the all-inorganic perovskite quantum dot composite glass prepared in example 2 of the present invention;
FIG. 6 is a coupled luminescence diagram of the total inorganic perovskite quantum dot composite glass and the chip prepared in example 2 of the present invention
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood, however, that the description herein of specific embodiments is only intended to illustrate the invention and not to limit the scope of the invention.
The invention provides all-inorganic perovskite quantum dot composite glass, which comprises a glass substrate, a glass modified oxide and an all-inorganic perovskite quantum dot substrate, wherein the glass modified oxide accounts for 5-20 wt% of the glass substrate, and the all-inorganic perovskite quantum dot substrate accounts for 5-30 wt% of the glass substrate; the thickness of the quantum dot glass is 0.05-3mm. The emission wavelength of the all-inorganic perovskite is 440-680nm. The glass-modifying oxide may be one or more of MgO, caO, srO, and BaO; the lead cesium halide perovskite component comprises: cs 2 CO 3 -PbO-AX (A: one or more of Li, na, K; X: one or more of Cl, br, I).
The first embodiment is as follows: the embodiment provides green-light perovskite quantum dot composite glass
Will analyze pure Na 2 CO 3 、ZnO、B 2 O 3 、SiO 2 、SrCO 3 、Cs 2 CO 3 PbO, naBr, according to 1 mol% of Na as a base glass raw material 2 O,15mol％ZnO,55mol％B 2 O 3 ,20mol％SiO 2 B, carrying out the following steps of; 10wt% of SrO,2 wt% of a quantum dot raw material, wherein each component of the quantum dot raw material is 1 mol% of Cs 2 CO 3 :20mol% of PbO:70mol% of KBr, placing in an agate mortar, grinding uniformly in the agate mortar, placing in a corundum crucible, placing in a muffle furnace at 1050 ℃ for heat preservation for 10min, and then taking out the glass solutionAnd (3) quickly casting the glass product in a mold with the preheating temperature of 250 ℃ for molding, preserving the heat for 1 hour, and then naturally cooling to obtain the green-light perovskite quantum dot composite glass.
The quantum dot composite glass obtained above was measured by a fluorescence spectrometer (FLS 920, edinburgh Instruments, england) to obtain a spectrum as shown in FIG. 1, and under 365nm wavelength excitation, the emission wavelength thereof was 515nm, the peak width at half height was 27nm, and the corresponding perovskite quantum dot CsPbBr was obtained 3 The composite quantum dot glass is coupled with a 365nm chip by using a Hangzhou remote STC4000 fast spectrometer to emit bright green light, as shown in figure 2.
The second embodiment: the embodiment provides blue-light perovskite quantum dot composite glass
Will analyze pure Na 2 CO 3 、ZnO、B 2 O 3 、SiO 2 、BaCO 3 、Cs 2 CO 3 PbO, naBr and NaCl in an amount of 15mol% based on the base glass raw material 2 O,15mol％ZnO,50mol％B 2 O 3 ,20mol％SiO 2 (ii) a 1 wt% CaO;20wt% of a perovskite raw material, wherein each component of the perovskite raw material is as follows, 10mol% of Cs 2 CO 3 :20mol% of PbO:25mol% NaBr:45mol% of NaCl, accurately weighing the molar fraction ratio, placing the weighed solution into an agate mortar, uniformly grinding the solution in the agate mortar, placing the mixture into a corundum crucible, placing the corundum crucible into a muffle furnace at 1100 ℃, preserving the temperature for 15min, taking out the glass solution, quickly casting the glass solution into a mold with the preheating temperature of 200 ℃ for molding, preserving the temperature for 2h, and naturally cooling to obtain the composite quantum dot glass;
the composite quantum dot glass obtained above was measured by a fluorescence spectrometer (FLS 920, edinburgh Instruments, england) to obtain a spectrum as shown in FIG. 3, wherein the emission wavelength was 450nm and the peak width at half height was 21nm under 365nm excitation, corresponding to perovskite quantum dot CsPb (Br, cl) 3 The composite quantum dot glass is coupled with a 365nm ultraviolet chip by using a Hangzhou remote STC4000 fast spectrometer to emit bright blue light, as shown in figure 4.
Example three: the embodiment provides red-light perovskite quantum dot composite glass
Will analyze pure Na 2 CO 3 、ZnO、B 2 O 3 、SiO 2 、BaCO 3 、Cs 2 CO 3 PbO, naBr and NaCl in an amount of 15mol% based on the base glass raw material 2 O,15mol％ZnO,50mol％B 2 O 3 ,20mol％SiO 2 (ii) a 1, 0wt% BaO;20wt% of a perovskite raw material, wherein each component of the perovskite raw material is as follows, cs by 7.5mol% 2 CO 3 :15mol% of PbO:30mol% NaBr: the method comprises the following steps of (1) accurately weighing the molar fraction ratio of LiI according to the percentage of 47.5mol, placing the mixture into an agate mortar, uniformly grinding the mixture in the agate mortar, placing the mixture into a corundum crucible, placing the corundum crucible into a muffle furnace at 1150 ℃ for heat preservation for 10min, taking out a glass solution, quickly casting the glass solution into a mold with the preheating temperature of 300 ℃ for molding, preserving the heat for 0.5h, and naturally cooling to obtain the composite quantum dot glass;
the composite quantum dot glass obtained above was measured by a fluorescence spectrometer (FLS 920, edinburgh Instruments, england) to obtain a spectrum as shown in FIG. 5, wherein the emission wavelength was 619nm and the peak width at half height was 36nm under 365nm excitation, corresponding to perovskite quantum dot CsPb (Br, I) 3 The composite quantum dot glass is coupled with a 365nm ultraviolet chip by using a Hangzhou remote STC4000 rapid spectrometer to emit bright red light, as shown in figure 6.
The foregoing is a further description of the invention with reference to preferred embodiments, and the examples described are some, but not all, examples of the invention. It will be apparent to those skilled in the art that various modifications, additions, substitutions, and other embodiments can be made without departing from the spirit and scope of the invention.
Claims (8)
1. The all-inorganic perovskite quantum dot composite glass is characterized in that: the glass comprises a glass substrate, a glass modified oxide and an all-inorganic perovskite quantum dot substrate, wherein the glass substrate is a Na2O-ZnO-B2O3-SiO2 system, the glass modified oxide accounts for 5% -20% of the glass substrate, and the molar ratio of the all-inorganic perovskite quantum dot substrate is 5% -30% of the glass substrate;
the glass-modifying oxide may be one or more of MgO, caO, srO, and BaO;
the all-inorganic perovskite quantum dot matrix is lead-cesium-halide perovskite;
the glass substrate comprises 10-20 mol% of sodium oxide, 10-30mol% of zinc oxide, 40-60mol% of boron oxide and 10-30mol% of silicon oxide.
2. The all-inorganic perovskite quantum dot composite glass according to claim 1, wherein: the all-inorganic perovskite quantum dot matrix raw material comprises Cs2CO3-PbO-AX (A: one or more of Li, na and K; X: one or more of Cl, br and I).
3. An all inorganic perovskite quantum dot composite glass according to claim 1, wherein: the thickness of the all-inorganic perovskite quantum dot composite glass is 0.05-3mm.
4. The all-inorganic perovskite quantum dot composite glass according to claim 1, wherein: the emission wavelength of the all-inorganic perovskite is 440-680nm.
5. A method for preparing the all-inorganic perovskite quantum dot composite glass as claimed in any one of claims 1 to 4, characterized in that: the method comprises the following steps of S1: adding the glass modified oxide and the all-inorganic perovskite quantum dot matrix into the glass matrix and sintering to obtain a molten mass; s2: and casting and molding the molten mass to obtain the all-inorganic perovskite quantum dot composite glass.
6. A method for preparing the composite quantum dot glass according to claim 5, which is characterized in that: the sintering temperature in the S1 is 900-1350 ℃, and the sintering time is 5-60 min.
7. A method for preparing the composite quantum dot glass according to claim 5, which is characterized in that: and S2, specifically, the molten mass is cast in a mold with the preheating temperature of 200-300 ℃ for molding, the temperature is kept for 0.5-3 h, and then the molten mass is naturally cooled.
8. A method for preparing the composite quantum dot glass according to claim 7, wherein the method comprises the following steps: the die is an iron plate, a copper plate or a stainless steel plate.
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| CN117142763A (en) * | 2023-09-05 | 2023-12-01 | 昆明理工大学 | Method for enhancing perovskite quantum dot glass luminescence |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116282927A (en) * | 2023-04-07 | 2023-06-23 | 上海应用技术大学 | Double-emission color-adjustable composite glass ceramic and preparation method and application thereof |
| CN117142763A (en) * | 2023-09-05 | 2023-12-01 | 昆明理工大学 | Method for enhancing perovskite quantum dot glass luminescence |
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