CN114656964A - Self-calibration fluorescence temperature measurement material and preparation method thereof - Google Patents
Self-calibration fluorescence temperature measurement material and preparation method thereof Download PDFInfo
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- 238000009529 body temperature measurement Methods 0.000 title claims abstract description 32
- 239000000463 material Substances 0.000 title claims abstract description 26
- 238000002360 preparation method Methods 0.000 title abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 7
- 238000000227 grinding Methods 0.000 claims description 16
- 239000000203 mixture Substances 0.000 claims description 13
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- VQCBHWLJZDBHOS-UHFFFAOYSA-N erbium(iii) oxide Chemical compound O=[Er]O[Er]=O VQCBHWLJZDBHOS-UHFFFAOYSA-N 0.000 claims description 12
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Chemical compound O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims description 12
- 239000004570 mortar (masonry) Substances 0.000 claims description 12
- ZIKATJAYWZUJPY-UHFFFAOYSA-N thulium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[Tm+3].[Tm+3] ZIKATJAYWZUJPY-UHFFFAOYSA-N 0.000 claims description 12
- 238000010438 heat treatment Methods 0.000 claims description 10
- 239000000126 substance Substances 0.000 claims description 9
- 229910015667 MoO4 Inorganic materials 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 8
- 229910052593 corundum Inorganic materials 0.000 claims description 8
- 239000010431 corundum Substances 0.000 claims description 8
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 6
- 238000001354 calcination Methods 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 6
- 229910003443 lutetium oxide Inorganic materials 0.000 claims description 6
- MPARYNQUYZOBJM-UHFFFAOYSA-N oxo(oxolutetiooxy)lutetium Chemical compound O=[Lu]O[Lu]=O MPARYNQUYZOBJM-UHFFFAOYSA-N 0.000 claims description 6
- UZLYXNNZYFBAQO-UHFFFAOYSA-N oxygen(2-);ytterbium(3+) Chemical compound [O-2].[O-2].[O-2].[Yb+3].[Yb+3] UZLYXNNZYFBAQO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 238000005245 sintering Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229910003454 ytterbium oxide Inorganic materials 0.000 claims description 6
- 229940075624 ytterbium oxide Drugs 0.000 claims description 6
- XGZVUEUWXADBQD-UHFFFAOYSA-L lithium carbonate Chemical compound [Li+].[Li+].[O-]C([O-])=O XGZVUEUWXADBQD-UHFFFAOYSA-L 0.000 claims description 5
- 229910052808 lithium carbonate Inorganic materials 0.000 claims description 5
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 4
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 4
- 229910052744 lithium Inorganic materials 0.000 claims description 4
- 229910052750 molybdenum Inorganic materials 0.000 claims description 4
- 239000011733 molybdenum Substances 0.000 claims description 4
- FUJCRWPEOMXPAD-UHFFFAOYSA-N lithium oxide Chemical compound [Li+].[Li+].[O-2] FUJCRWPEOMXPAD-UHFFFAOYSA-N 0.000 claims description 3
- 229910001947 lithium oxide Inorganic materials 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 claims description 3
- HOOANQZZUGPTRH-UHFFFAOYSA-N molybdenum(3+);oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Mo+3].[Mo+3] HOOANQZZUGPTRH-UHFFFAOYSA-N 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract description 20
- 238000010168 coupling process Methods 0.000 abstract description 20
- 238000005859 coupling reaction Methods 0.000 abstract description 20
- 230000035945 sensitivity Effects 0.000 abstract description 10
- 229910052761 rare earth metal Inorganic materials 0.000 abstract description 9
- -1 rare earth ions Chemical class 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 3
- 239000011159 matrix material Substances 0.000 abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 abstract description 3
- DLWVQSOQDMSDHN-UHFFFAOYSA-N [Lu].[Li] Chemical compound [Lu].[Li] DLWVQSOQDMSDHN-UHFFFAOYSA-N 0.000 abstract description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000005284 excitation Effects 0.000 abstract description 2
- MEFBJEMVZONFCJ-UHFFFAOYSA-N molybdate Chemical compound [O-][Mo]([O-])(=O)=O MEFBJEMVZONFCJ-UHFFFAOYSA-N 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 description 4
- 238000002441 X-ray diffraction Methods 0.000 description 3
- 238000004458 analytical method Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 150000002500 ions Chemical class 0.000 description 2
- XOFYZVNMUHMLCC-ZPOLXVRWSA-N prednisone Chemical compound O=C1C=C[C@]2(C)[C@H]3C(=O)C[C@](C)([C@@](CC4)(O)C(=O)CO)[C@@H]4[C@@H]3CCC2=C1 XOFYZVNMUHMLCC-ZPOLXVRWSA-N 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 238000004861 thermometry Methods 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000010791 quenching Methods 0.000 description 1
- 230000000171 quenching effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000001757 thermogravimetry curve Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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- 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
- C09K11/7766—Luminescent, e.g. electroluminescent, chemiluminescent materials containing inorganic luminescent materials containing rare earth metals containing two or more rare earth metals
- C09K11/7767—Chalcogenides
- C09K11/7769—Oxides
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
- G01K11/20—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using thermoluminescent materials
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Abstract
The invention belongs to the field of fluorescence temperature sensing, and discloses a self-calibration fluorescence temperature measurement material and a preparation method thereof. The invention aims to provide a high-efficiency fluorescence temperature measurement matrix material which is codoped with rare earth ions Er3+/Tm3+/Yb3+During the process, the thermal coupling energy level pair and the non-thermal coupling energy level pair from different rare earth ions can be utilized to realize self-calibration fluorescence intensity ratio temperature measurement, and the highest sensitivity is not limited by Boltzmann distribution. The rare earth doped lithium lutetium molybdate has small emission peak overlap of corresponding temperature measuring energy levels under the excitation of near-infrared laser, can keep higher relative sensitivity in different temperature regions, and is beneficial to realizing the application of fluorescence temperature measurement with high sensitivity, high precision and extremely wide temperature regions.
Description
Technical Field
The invention belongs to the field of fluorescence temperature sensing, and particularly relates to a high-sensitivity self-calibration fluorescence temperature measurement material and a preparation method thereof.
Background
The accurate real-time temperature monitoring plays an important role in the aspects of ensuring the product quality, saving energy, promoting the production and the like. Compared with the traditional thermocouple and infrared radiation temperature measurement, the fluorescence temperature measurement technology has the characteristics of non-contact temperature measurement, large-range imaging, wide dynamic range, high response speed, high precision and the like, and therefore has wide application prospects in the field of temperature measurement. Fluorescence thermometry is to monitor physical quantities such as luminous intensity, fluorescence lifetime, emission bandwidth, peak shift, polarization property, fluorescence intensity ratio and the like by utilizing the dependency relationship between luminous characteristics and temperature to obtain corresponding temperature conditions. The Fluorescence Intensity Ratio (FIR) temperature measurement has the self-calibration characteristic, is not interfered by the external environment and is mostly realized by a pair of thermal coupling energy levels of rare earth ions. However, the thermal coupling energy level difference Δ E is limited to the range of 200-2000cm by Boltzmann distribution based on the fluorescence intensity ratio temperature measurement of the thermal coupling energy level-1Determine the theoretical highest relative sensitivity Sr (Sr ═ delta E/kT)2) Should not exceed 2878/T2And the application of fluorescence temperature measurement with high sensitivity requirement is restricted.
In order to further improve the temperature measurement performance, it is considered to perform fluorescence temperature measurement for different temperature regions by using a thermal coupling energy level pair and a non-thermal coupling energy level pair. The vast majority of rare earth ions are non-thermal coupling energy levels, so that the selection of non-thermal coupling energy level pairs is more abundant, the energy is not limited by Boltzmann distribution, and the non-thermal coupling energy levels of different ions also show certain temperature dependence characteristics, which are caused by the difference of thermal quenching or energy transfer process. Therefore, the fluorescence temperature measurement is carried out by utilizing the non-thermal coupling energy levels from different ions, so that the sensitivity is further improved, the temperature measurement precision is ensured, the temperature measurement error is reduced, and the high-performance fluorescence intensity ratio temperature measurement is realized.
Disclosure of Invention
The invention aims to provide a high-efficiency fluorescence temperature measurement matrix material which is codoped with rare earth ions Er3+/Tm3 +/Yb3+In the time, the high-sensitivity fluorescence intensity ratio temperature measurement can be realized by utilizing the thermal coupling energy level pair and the non-thermal coupling energy level pair from different rare earth ions.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: a self-calibration fluorescence temperature measurement material has a chemical general formula as follows: LiLu0.93-x-y(MoO4)2：xEr3+,yTm3+,0.07Yb3+Wherein x is more than or equal to 0.002 and less than or equal to 0.01, and y is more than 0 and less than or equal to 0.02; x and y both represent Er3+、Tm3+Substituted Lu3+The molar content of (a).
A preparation method of a self-calibration fluorescence temperature measurement material comprises the following steps:
1) according to the general chemical formula LiLu0.93-x-y(MoO4)2：xEr3+,yTm3+,0.07Yb3+The stoichiometric ratio of each element in the composition is respectively called lithium-containing compound, lutetium oxide, molybdenum-containing compound, erbium oxide, thulium oxide and ytterbium oxide;
2) putting the powder weighed in the step 1) into an agate mortar, adding a small amount of absolute ethyl alcohol, and grinding to uniformly mix the materials to obtain a mixture;
3) placing the mixture obtained in the step 2) in a corundum crucible, then placing the corundum crucible in a muffle furnace, sintering at high temperature, and cooling to room temperature;
4) and (3) grinding the solid sample obtained in the step 3) in an agate mortar to obtain the target product.
Preferably, in the above preparation method, the lithium-containing compound is selected from lithium carbonate or lithium oxide.
Preferably, in the above-mentioned preparation method, the molybdenum-containing compound is selected from molybdenum trioxide or molybdenum sesquioxide.
Preferably, in the preparation method, in the step 2), the grinding time is 30-60 min.
Preferably, in the above preparation method, step 3), the atmosphere for high-temperature sintering is an air atmosphere.
Preferably, in the preparation method, in the step 3), the sintering is performed at a high temperature of 900-1100 ℃, the heating rate is 3-5 ℃/min, and the calcination time is 3-6 h.
Preferably, in the above preparation method, in the step 4), the grinding time is 5-10 min.
The invention has the beneficial effects that:
the lithium lutetium molybdate is used as a matrix material, and the material has stable physical and chemical properties, simple preparation process, high temperature resistance and environmental friendliness. When codoped with Er3+/Tm3+/Yb3+When the fluorescence temperature measuring device is excited by near-infrared 972nm laser, the emission peak overlap is small, the signal discrimination of fluorescence temperature measurement can be improved, and the temperature measurement error is reduced; respectively using Er3+、Tm3+The formed thermal coupling energy level pair and non-thermal coupling energy level pair can realize high-sensitivity and high-precision temperature measurement in different temperature regions.
Drawings
Fig. 1 is an XRD pattern of the fluorescent thermometric materials prepared in example 1 and example 2.
FIG. 2 is an upconversion thermogram of a fluorescent thermometric material under near infrared excitation in example 5.
FIG. 3 shows Er in accordance with example 53+：2H11/2/4S3/2Thermal coupling energy levels versus calculated fluorescence thermometry sensitivity versus temperature.
FIG. 4 shows Er in example 53+/Tm3+The ratio of fluorescence intensities of the non-thermally coupled energy level pairs is plotted as a function of temperature T.
Detailed Description
Example 1
The chemical formula of the fluorescent temperature measuring material of the embodiment is LiLu0.915(MoO4)2：0.005Er3+,0.01Tm3+,0.07Yb3+The preparation method comprises the following steps:
respectively weighing 0.0739g of lithium carbonate, 0.3641g of lutetium oxide, 0.5758g of molybdenum trioxide, 0.0019g of erbium oxide, 0.0039g of thulium oxide and 0.0276g of ytterbium oxide; putting the weighed powder into an agate mortar, adding 1ml of absolute ethyl alcohol, grinding clockwise for 30min to mix uniformly, then transferring into a corundum crucible, placing the crucible in a high-temperature muffle furnace, heating to 900 ℃ at the heating rate of 3 ℃/min, calcining for 4h, and cooling to room temperature along with the furnace; and (3) grinding the obtained solid sample in an agate mortar for 5min to obtain the target product fluorescent temperature measuring material.
Performing phase analysis on the sample to obtain XRD pattern such as Tm in figure 13+: as shown in the 1% chart, compared with a standard pdf card (JPCDS No.23-1192), the positions of diffraction peaks and diffraction intensities correspond one to one, and the synthesis of the pure-phase rare earth doped fluorescent temperature measurement material is proved.
Example 2
The chemical formula of the fluorescent temperature measuring material of the embodiment is LiLu0.905(MoO4)2：0.005Er3+,0.02Tm3+,0.07Yb3+The preparation method comprises the following steps:
respectively weighing 0.0739g of lithium carbonate, 0.3601g of lutetium oxide, 0.5758g of molybdenum trioxide, 0.0019g of erbium oxide, 0.0077g of thulium oxide and 0.0276g of ytterbium oxide; putting the weighed powder into an agate mortar, adding 2ml of absolute ethyl alcohol, grinding clockwise for 40min to uniformly mix, then transferring into a corundum crucible, placing the crucible in a high-temperature muffle furnace, heating to 900 ℃ at a heating rate of 5 ℃/min, calcining for 4h, and cooling to room temperature along with the furnace; and (3) grinding the obtained solid sample in an agate mortar for 10min to obtain the target product fluorescent temperature measuring material.
Performing phase analysis on the sample to obtain XRD pattern such as Tm in figure 13+: as shown in the 2% diagram, compared with a standard pdf card (JPCDS No.23-1192), the positions of diffraction peaks and diffraction intensities correspond one to one, and the synthesis of the pure-phase rare earth doped fluorescent temperature measurement material is proved.
Example 3
The chemical formula of the fluorescent temperature measuring material of the embodiment is LiLu0.91(MoO4)2：0.01Er3+,0.01Tm3+,0.07Yb3+The preparation method comprises the following steps:
respectively weighing 0.0739g of lithium carbonate, 0.3621g of lutetium oxide, 0.4798g of molybdenum trioxide, 0.0038g of erbium oxide, 0.0039g of thulium oxide and 0.0276g of ytterbium oxide; putting the weighed powder into an agate mortar, adding 1ml of absolute ethyl alcohol, clockwise grinding for 35min to uniformly mix, then transferring the mixture into a corundum crucible, placing the crucible into a high-temperature muffle furnace, heating to 1100 ℃, calcining for 3h at the heating rate of 3 ℃/min, and cooling to room temperature along with the furnace; and (3) putting the obtained solid sample in an agate mortar for grinding for 15min to prepare the target product fluorescent temperature measuring material.
Example 4
The chemical formula of the fluorescent temperature measuring material of the embodiment is LiLu0.916(MoO4)2：0.004Er3+,0.01Tm3+,0.07Yb3+The preparation method comprises the following steps:
respectively weighing 0.0299g of lithium oxide, 0.3645g of lutetium oxide, 0.5758g of molybdenum trioxide, 0.0015g of erbium oxide, 0.0039g of thulium oxide and 0.0276g of ytterbium oxide; putting the weighed powder into an agate mortar, adding 2ml of absolute ethyl alcohol, clockwise grinding for 45min to uniformly mix, transferring the mixture into a corundum crucible, placing the crucible into a high-temperature muffle furnace, heating to 1000 ℃, calcining for 4h at the heating rate of 4 ℃/min, and cooling to room temperature along with the furnace; and (3) grinding the obtained solid sample in an agate mortar for 10min to obtain the target product fluorescent temperature measuring material.
Example 5
The fluorescence temperature measurement material prepared in example 1 was placed in a test apparatus, and a near-infrared laser with a center wavelength of 972nm was used as a pump light source, and a light path was adjusted to excite the material, and an up-conversion temperature-variable spectrum was obtained in a range of 300.3 to 563K as shown in fig. 2, and sensitivity calculation was performed using a thermal coupling level pair and a non-thermal coupling level pair, respectively. FIG. 3 shows Er-based3+：2H11/2/4S3/2The Er is found according to the rule that the sensitivity of thermal coupling energy level calculation changes along with the temperature3+Has a maximum value of 4.54X 10 at a temperature of 563K-3K-1. FIG. 4 shows Er3+：2H11/2And Tm3+：1G4The function fitting relation of the fluorescence intensity ratio of the non-thermal coupling energy level pair and the temperature T is formed, and the highest relative sensitivity is calculatedReached at 463K, a value of 9.9X 10-2K-1。
Claims (8)
1. A self-calibration fluorescence temperature measurement material is characterized in that the chemical general formula of the self-calibration fluorescence temperature measurement material is as follows: LiLu0.93-x-y(MoO4)2：xEr3+,yTm3+,0.07Yb3+(ii) a Wherein x is more than or equal to 0.002 and less than or equal to 0.01, and y is more than 0 and less than or equal to 0.02; x and y both represent Er3+、Tm3+Substituted Lu3+The molar content of (a).
2. The method for preparing a self-calibrating fluorescent temperature measuring material of claim 1, which is characterized by comprising the following steps:
1) according to the general chemical formula LiLu0.93-x-y(MoO4)2：xEr3+,yTm3+,0.07Yb3+The stoichiometric ratio of each element in the composition is respectively called lithium-containing compound, lutetium oxide, molybdenum-containing compound, erbium oxide, thulium oxide and ytterbium oxide;
2) putting the powder weighed in the step 1) into an agate mortar, adding a small amount of absolute ethyl alcohol, and grinding to uniformly mix the materials to obtain a mixture;
3) placing the mixture obtained in the step 2) in a corundum crucible, then placing the corundum crucible in a muffle furnace, sintering at high temperature, and cooling to room temperature;
4) and (3) grinding the solid sample obtained in the step 3) in an agate mortar to obtain the target product.
3. The method of claim 2, wherein: the lithium-containing compound is selected from lithium carbonate or lithium oxide.
4. The method of claim 2, wherein: the molybdenum-containing compound is selected from molybdenum trioxide or molybdenum sesquioxide.
5. The method of claim 2, wherein: in the step 2), the grinding time is 30-60 min.
6. The production method according to claim 2, characterized in that: in the step 3), the atmosphere of the high-temperature sintering is air atmosphere.
7. The method of claim 2, wherein: in the step 3), the high-temperature sintering is carried out at the temperature of 900-1100 ℃, the heating rate is 3-5 ℃/min, and the calcining time is 3-6 h.
8. The production method according to claim 2, characterized in that: in the step 4), the grinding time is 5-10 min.
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115340864A (en) * | 2022-09-15 | 2022-11-15 | 厦门理工学院 | Red luminescent material and preparation method and application thereof |
| CN115477946A (en) * | 2022-09-30 | 2022-12-16 | 云南大学 | Green fluorescent material for non-contact temperature sensor and preparation method thereof |
| CN115820252A (en) * | 2022-12-08 | 2023-03-21 | 昆明理工大学 | Rare earth doped multi-excitation light source optical temperature measurement type fluorescent powder and preparation method thereof |
| CN116355613A (en) * | 2023-03-31 | 2023-06-30 | 安徽工业大学 | High-sensitivity self-activated fluorescent temperature measurement material and preparation method thereof |
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| CN111253941A (en) * | 2020-03-26 | 2020-06-09 | 辽宁大学 | Temperature-division-area nanometer fluorescence thermometer, preparation method thereof and fluorescence temperature measuring method |
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| CN111253941A (en) * | 2020-03-26 | 2020-06-09 | 辽宁大学 | Temperature-division-area nanometer fluorescence thermometer, preparation method thereof and fluorescence temperature measuring method |
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| LINLIN LI ET AL.: "Synthesis and luminescent properties of high brightness MRE(MoO4)2:Eu3+ (M=Li,Na,K;RE=Gd,Y,Lu) red phosphors for white LEDs" * |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115340864A (en) * | 2022-09-15 | 2022-11-15 | 厦门理工学院 | Red luminescent material and preparation method and application thereof |
| CN115340864B (en) * | 2022-09-15 | 2023-08-25 | 厦门理工学院 | Red luminescent material and preparation method and application thereof |
| CN115477946A (en) * | 2022-09-30 | 2022-12-16 | 云南大学 | Green fluorescent material for non-contact temperature sensor and preparation method thereof |
| CN115477946B (en) * | 2022-09-30 | 2023-05-23 | 云南大学 | Green fluorescent material for non-contact temperature sensor and preparation method thereof |
| CN115820252A (en) * | 2022-12-08 | 2023-03-21 | 昆明理工大学 | Rare earth doped multi-excitation light source optical temperature measurement type fluorescent powder and preparation method thereof |
| CN115820252B (en) * | 2022-12-08 | 2023-11-24 | 昆明理工大学 | Rare earth doped multi-excitation light source optical temperature measurement type fluorescent powder and preparation method thereof |
| CN116355613A (en) * | 2023-03-31 | 2023-06-30 | 安徽工业大学 | High-sensitivity self-activated fluorescent temperature measurement material and preparation method thereof |
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