CN113755165B - Mn-doped 95 MCT:Yb/Ho up-conversion luminescence-dielectric dual-functional material and preparation method thereof - Google Patents
Mn-doped 95 MCT:Yb/Ho up-conversion luminescence-dielectric dual-functional material and preparation method thereof Download PDFInfo
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Abstract
The invention belongs to the technical field of photo-thermal dual-functional materials, and discloses a manganese doped materialHybrid 95MCT: yb, ho up-conversion luminescence-dielectric bifunctional material, the chemical expression of which is: mn (Mn) x Yb 0.01 Ho 0.01 Mg 0.95 Ca 0.05 TiO (3.03+x) . The preparation method comprises the following steps of S1: dissolving tetrabutyl titanate into ethylene glycol; s2: dripping aqueous solution of citric acid into the solution obtained in the step S1; s3: sequentially dripping aqueous solutions of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate into the solution obtained in the step S2; s4: heating the solution obtained in the step S3 to a certain temperature, preserving heat, and removing water; s5: grinding the brown-black solid obtained in the step S4 into powder, then placing the powder in a high-temperature furnace, heating to a certain temperature, and preserving heat to obtain a reaction product; s6: and (3) cooling the reaction product obtained in the step (S5) to room temperature to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material.
Description
Technical Field
The invention belongs to the technical field of photo-thermal dual-function materials, and particularly relates to a manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material and a preparation method thereof.
Background
95MCT(0.95MgTiO 3 –0.05CaTiO 3 ) Is a non-metal oxide material with very good dielectric properties [ Journal of Alloys and Compounds 450 (2008): 359-363 ].]Commonly used for capacitors and dielectric resonators; the relative dielectric constant of the 95MCT ceramic can reach 20, the Q multiplied by f factor can reach 56000 (for 7GHz electromagnetic wave), and the temperature coefficient of resonance frequency (τf) is 0. On the other hand, rare earth ion doped dielectric materials simultaneously exhibit up-conversion luminescence-dielectric dual function characteristics [ Journal of Alloys and Compounds 541 (2012) 505-509; angewandte Chemie 123 (2011) 7008-7012.]Is receiving extensive attention. Such as rare earth ion Er 3+ /Tm 3+ /Yb 3+ Doped CaTiO 3 Ceramics [ Journal of Alloys and Compounds 541 (2012) 505-509]Has excellent dielectric property and can emit high-energy visible photons under the excitation of 980nm infrared light; rare earth ion Er 3+ /Yb 3+ Doped BaTiO 3 [Angewandte Chemie 123(2011)7008-7012]Respectively show excellent dielectric and ferroelectric properties at different temperatures, and can emit green light under the excitation of 980nm infrared light. However, the up-conversion luminescence-dielectric dual-function materials reported so far are commonly developedThe problem of low light efficiency severely restricts its practical application.
Disclosure of Invention
Aiming at the problems of the background technology, the invention aims to provide a manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material and a preparation method thereof, wherein the dual-function material has excellent up-conversion luminescence and dielectric effect, and the preparation technology is simple, low in cost, strong in operability and capable of being produced in a large scale.
In order to achieve the technical purpose, the invention adopts the following technical scheme:
a manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material has a chemical expression:
Mn x Yb 0.01 Ho 0.01 Mg 0.95 Ca 0.05 TiO (3.03+x)
wherein x is more than 0 and less than or equal to 0.05, and x is the molar concentration of manganese ions; the photo-thermal difunctional nano material is a hexagonal phase nano sphere, and the grain size is 21 nm-25 nm.
A preparation method of a Mn-doped 95 MCT/Yb/Ho up-conversion luminescence-dielectric dual-function material comprises the following steps,
s1: dissolving tetrabutyl titanate into glycol, heating and stirring until the mixture is clear;
s2: dripping the citric acid aqueous solution into the solution obtained in the step S1, and continuously heating and stirring to form a uniform solution;
s3: sequentially dripping aqueous solutions of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate into the solution obtained in the step S2, and heating and stirring to form a uniform solution;
s4: heating the solution obtained in the step S3 to a certain temperature, preserving heat, and removing water to obtain a brownish-black solid;
s5: grinding the brown-black solid obtained in the step S4 into powder, then placing the powder in a high-temperature furnace, heating to a certain temperature, and preserving heat to obtain a reaction product;
s6: and naturally cooling the reaction product obtained in the step S5 to room temperature to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material.
As a preferable scheme of the invention, the volume ratio of tetrabutyl titanate to ethylene glycol in the S1 is 1:1, and the reaction temperature is 60+/-3 ℃.
As a preferable scheme of the invention, the molar ratio of the citric acid to the glycol in the S2 is 1:1, and the reaction temperature is 60+/-3 ℃.
As a preferable scheme of the invention, in the S3, the molar ratio of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate is x:0.01:0.01:0.95:0.05, wherein x is more than 0 and less than or equal to 0.05, and the reaction temperature is 60+/-3 ℃.
As a preferable scheme of the invention, the reaction temperature in the S4 is 220+/-10 ℃ and the reaction time is 115-125 min.
As a preferable scheme of the invention, the reaction temperature in the S5 is 800+/-20 ℃ and the reaction time is 90-95 min.
As a preferable scheme of the invention, the cold pressing process is to press for 10-15 min at 20+/-5 ℃.
The reaction principle of the invention is that nitric acid compound reacts with citric acid to form citric acid complex, and citric acid releases Ti (OH) with butyl titanate under the control of glycol 4 Complexing and reacting at 220 ℃ to form a plastic jelly; grinding and then oxidizing and decomposing at 800 ℃ to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material;
compared with the prior art, the invention has the beneficial effects that:
1. the manganese doped 95MCT prepared by the method comprises the following steps: the Yb and Ho up-conversion luminescence-dielectric dual-function material has high purity and good uniformity, and simultaneously has excellent luminescence and dielectric properties;
2. the crystal field can be effectively regulated and controlled by controlling the proportion of manganese ions, so that the luminous efficiency is remarkably improved while the excellent dielectric property is maintained;
3. in the present invention, doped holmium ions Ho 3+ And ytterbium ion Yb 3+ The mole percentage of each is 1%, citric acid is used for complexing metal ions, and ethylene glycol is used for controlling the release and the crystal of the metal ionsThe prepared sample has excellent photoluminescence characteristics and dielectric characteristics at the same time; the crystal field of the 95MCT can be effectively regulated and controlled through manganese doping, so that holmium ions Ho are caused 3+ The avalanche luminous efficiency of (C) is significantly improved, and the green light emission intensity is BaTiO which has been reported 3 :Yb 3+ /Er 3+ 70 times more than that of the above.
Drawings
The invention can be further illustrated by means of non-limiting examples given in the accompanying drawings;
FIG. 1 shows a comparative example BaTiO of the present invention 3 XRD patterns of Yb and Er;
FIG. 2 XRD patterns of Yb, ho for manganese doped 95MCT in an embodiment of the invention.
FIG. 3 comparative example BaTiO according to the invention 3 Photoluminescence spectra of Yb, er and example manganese doped 95mct: yb, ho.
Detailed Description
In order that those skilled in the art will better understand the present invention, the following technical scheme of the present invention will be further described with reference to the accompanying drawings and examples.
The invention relates to a lamination process for a multilayer PCB, which comprises the following steps:
comparative example:
s1: tetrabutyl titanate and ethylene glycol are added into a three-neck flask according to the volume ratio of 1:1, the total volume is 10ml, and then the mixture is heated and stirred at 60 ℃ to form a uniform solvent;
s2: dripping citric acid aqueous solution into the solution obtained in the step S1, wherein the molar ratio of citric acid to glycol is 1:1, and continuously heating and stirring at 60 ℃ to form a uniform solution;
s3: sequentially dripping ytterbium nitrate, erbium nitrate and barium nitrate aqueous solution with the molar ratio of 0.025:0.005:0.97 into the solution obtained in the step S2), and heating and stirring at 60 ℃ to form a uniform solution;
s4: heating the solution obtained in the step S3 to 220 ℃, preserving heat for 2 hours, and removing water to obtain a brownish black solid;
s5: grinding the brown-black solid obtained in the step S4) into powder, then placing the powder in a high-temperature furnace and preserving the temperature at 800 ℃ for 1.5 hours to obtain a reaction product;
s6: naturally cooling the reaction product obtained in the step S5 to room temperature to obtain final BaTiO 3 Yb and Er up-conversion luminescence-dielectric dual-function material.
From the XRD pattern of FIG. 1, it can be seen that the sample is a cubic phase of BaTiO3 crystals. The curves of BaTiO3 Yb and Er in the photoluminescence spectra of the graph in FIG. 3 show that the sample can emit green light with the central wavelength of 539nm under the excitation of 978nm infrared light;
example 1:
s1: tetrabutyl titanate and ethylene glycol are added into a three-neck flask according to the volume ratio of 1:1, the total volume is 10ml, and then the mixture is heated and stirred at 60 ℃ to form a uniform solvent;
s2: dripping citric acid aqueous solution into the solution obtained in the step S1, wherein the molar ratio of citric acid to glycol is 1:1, and continuously heating and stirring at 60 ℃ to form a uniform solution;
s3: sequentially dripping aqueous solutions of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate with a molar ratio of 0.01:0.01:0.01:0.95:0.05 into the solution obtained in the step S2, and heating and stirring at 60 ℃ to form a uniform solution;
s4: heating the solution obtained in the step S3 to 220 ℃, preserving heat for 2 hours, and removing water to obtain a brownish black solid;
s5: grinding the brown-black solid obtained in the step S4 into powder, then placing the powder in a high-temperature furnace and preserving the temperature at 800 ℃ for 1.5 hours to obtain a reaction product;
s6: naturally cooling the reaction product obtained in the step S5 to room temperature to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material.
As can be seen from the curve a in fig. 2, the sample is a eutectic formed by triangular phase MgTiO3 and monoclinic phase CaTiO 3; the lattice parameters calculated from the XRD diffraction peaks showed that the ratio of the two co-crystals of the triangular phase MgTiO3 and the monoclinic phase CaTiO3 was 94.1:5.9, approaching the original component ratio of 95:5; the error is mainly due to doped Yb 3+ /Ho 3+ Ions and Mg 2+ 、Ca 2+ The radius of the ions is poor;
mn with a molar ratio of 0.01 is shown by the 95MCT: yb, ho,0.01Mn curve in the photoluminescence spectra of FIG. 3 2+ Doped 95MCT: the Yb and Ho up-conversion luminescence-dielectric difunctional material can emit green light with the central wavelength of 538nm under the excitation of 978nm infrared light, and the luminescence intensity is about 53 times of that of the comparative example BaTiO3: yb and Er.
Example 2:
s1: tetrabutyl titanate and ethylene glycol are added into a three-neck flask according to the volume ratio of 1:1, the total volume is 10ml, and then the mixture is heated and stirred at 60 ℃ to form a uniform solvent;
s2: dripping citric acid aqueous solution into the solution obtained in the step S1, wherein the molar ratio of citric acid to glycol is 1:1, and continuously heating and stirring at 60 ℃ to form a uniform solution;
s3: sequentially dripping aqueous solutions of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate with a molar ratio of 0.03:0.01:0.01:0.95:0.05 into the solution obtained in the step S2, and heating and stirring at 60 ℃ to form a uniform solution;
s4: heating the solution obtained in the step S3 to 220 ℃, preserving heat for 2 hours, and removing water to obtain a brownish black solid;
s5: grinding the brown-black solid obtained in the step S4 into powder, then placing the powder in a high-temperature furnace and preserving the temperature at 800 ℃ for 1.5 hours to obtain a reaction product;
s6: naturally cooling the reaction product obtained in the step S5 to room temperature to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material.
As can be seen from the b curve in fig. 2, the sample is a eutectic formed by triangular MgTiO3 and monoclinic CaTiO 3; the lattice parameters calculated according to XRD diffraction peaks show that the ratio of the triangular phase MgTiO3 to the monoclinic phase CaTiO3 is 94.9:5.1 and is close to the original component ratio of 95:5; the error is mainly due to doped Yb 3+ /Ho 3+ Ions and Mg 2+ 、Ca 2+ The radius of the ions is poor;
mn at a molar ratio of 0.03 is shown by the 95MCT: yb, ho,0.03Mn curve in the photoluminescence spectra of FIG. 3 2+ Doped 95MCT: the Yb and Ho up-conversion luminescence-dielectric difunctional material can emit green light with the central wavelength of 538nm under the excitation of 978nm infrared light, and the luminescence intensity is about 71 times of that of comparative example BaTiO3: yb and Er.
Example 3:
s1: tetrabutyl titanate and ethylene glycol are added into a three-neck flask according to the volume ratio of 1:1, the total volume is 10ml, and then the mixture is heated and stirred at 60 ℃ to form a uniform solvent;
s2: dripping citric acid aqueous solution into the solution obtained in the step S1, wherein the molar ratio of citric acid to glycol is 1:1, and continuously heating and stirring at 60 ℃ to form a uniform solution;
s3: sequentially dripping aqueous solutions of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate with the molar ratio of 0.05:0.01:0.01:0.95:0.05 into the solution obtained in the step S2, and heating and stirring at 60 ℃ to form a uniform solution;
s4: heating the solution obtained in the step S3 to 220 ℃, preserving heat for 2 hours, and removing water to obtain a brownish black solid;
s5: grinding the brown-black solid obtained in the step S4 into powder, then placing the powder in a high-temperature furnace and preserving the temperature at 800 ℃ for 1.5 hours to obtain a reaction product;
s6: naturally cooling the reaction product obtained in the step S5 to room temperature to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material.
As can be seen from the c curve in fig. 2, the sample is a eutectic formed by triangular MgTiO3 and monoclinic CaTiO 3; the lattice parameters calculated according to XRD diffraction peaks show that the ratio of the triangular phase MgTiO3 to the monoclinic phase CaTiO3 is 94.2:5.8 and is close to the original component ratio of 95:5; the error is mainly due to doped Yb 3+ /Ho 3+ Ions and Mg 2+ 、Ca 2+ The radius of the ions is poor;
mn at a molar ratio of 0.05 is shown by the 95MCT: yb, ho,0.05Mn curve in the photoluminescence spectra of FIG. 3 2+ Doped 95MCT: the Yb and Ho up-conversion luminescence-dielectric difunctional material can emit green light with the central wavelength of 538nm under the excitation of 978nm infrared light, and the luminescence intensity is about 45 times of that of comparative example BaTiO3: yb and Er.
The above embodiments are merely illustrative of the principles of the present invention and its effectiveness, and are not intended to limit the invention. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the invention. Accordingly, it is intended that all equivalent modifications and variations of the invention be covered by the claims of this invention, which are within the skill of those skilled in the art, can be made without departing from the spirit and scope of the invention disclosed herein.
Claims (5)
1. A manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material is characterized in that: the chemical expression is as follows:
Mn x Yb 0.01 Ho 0.01 Mg 0.95 Ca 0.05 TiO (3.03+x)
wherein x is more than 0 and less than or equal to 0.05, and x is the molar concentration of manganese ions.
2. A method for preparing the manganese doped 95mct yb/ho up-conversion luminescence-dielectric dual-function material according to claim 1, wherein: comprises the steps of,
s1: dissolving tetrabutyl titanate into glycol, heating and stirring until the mixture is clear;
s2: dripping the citric acid aqueous solution into the solution obtained in the step S1, and continuously heating and stirring to form a uniform solution;
s3: sequentially dripping aqueous solutions of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate into the solution obtained in the step S2, and heating and stirring to form a uniform solution;
s4: heating the solution obtained in the step S3 to 220+/-10 ℃, then preserving heat for 115-125 min, and removing water to obtain a brownish-black solid;
s5: grinding the brown-black solid obtained in the step S4 into powder, then placing the powder in a high-temperature furnace, heating to the temperature of 800+/-20 ℃, and preserving the heat for 90-95 min to obtain a reaction product;
s6: and naturally cooling the reaction product obtained in the step S5 to room temperature to obtain the final manganese doped 95MCT: yb, ho up-conversion luminescence-dielectric dual-function material.
3. The method for preparing the manganese-doped 95MCT:Yb, ho up-conversion luminescence-dielectric dual-function material according to claim 2, which is characterized in that: the volume ratio of tetrabutyl titanate to ethylene glycol in the S1 is 1:1, and the reaction temperature is 60+/-3 ℃.
4. The method for preparing the manganese-doped 95MCT:Yb, ho up-conversion luminescence-dielectric dual-function material according to claim 2, which is characterized in that: the molar ratio of the citric acid to the glycol in the S2 is 1:1, and the reaction temperature is 60+/-3 ℃.
5. The method for preparing the manganese-doped 95MCT:Yb, ho up-conversion luminescence-dielectric dual-function material according to claim 2, which is characterized in that: in the S3, the molar ratio of manganese nitrate, ytterbium nitrate, holmium nitrate, magnesium nitrate and calcium nitrate is x, wherein x is more than 0 and less than or equal to 0.05, and the reaction temperature is 60+/-3 ℃.
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629761A (en) * | 2015-02-05 | 2015-05-20 | 浙江大学 | Calcium titanate up-conversion luminescence nanoparticle and preparation method thereof |
| CN107603616A (en) * | 2017-10-10 | 2018-01-19 | 南通纺织丝绸产业技术研究院 | A kind of vanadium barium titanate near-infrared light-emitting material, preparation method and applications |
| CN108069711A (en) * | 2017-09-05 | 2018-05-25 | 华东理工大学 | A kind of Nb2O5Adulterate 0.95MgTiO3-0.05CaTiO3Ceramics |
| CN108774521A (en) * | 2018-07-23 | 2018-11-09 | 合肥学院 | A kind of preparation method of the silicate red long afterglow luminescent powder of rare-earth doped titanium |
| CN111004030A (en) * | 2019-12-24 | 2020-04-14 | 苏州同拓光电科技有限公司 | MgTiO (magnesium-titanium-oxide) powder3Microwave-based dielectric ceramic and preparation method thereof |
| CN111763083A (en) * | 2020-06-15 | 2020-10-13 | 苏州瑞玛精密工业股份有限公司 | Low-temperature sintered ultralow-loss microwave dielectric ceramic and preparation method and application thereof |
-
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- 2020-11-04 CN CN202011214297.3A patent/CN113755165B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104629761A (en) * | 2015-02-05 | 2015-05-20 | 浙江大学 | Calcium titanate up-conversion luminescence nanoparticle and preparation method thereof |
| CN108069711A (en) * | 2017-09-05 | 2018-05-25 | 华东理工大学 | A kind of Nb2O5Adulterate 0.95MgTiO3-0.05CaTiO3Ceramics |
| CN107603616A (en) * | 2017-10-10 | 2018-01-19 | 南通纺织丝绸产业技术研究院 | A kind of vanadium barium titanate near-infrared light-emitting material, preparation method and applications |
| CN108774521A (en) * | 2018-07-23 | 2018-11-09 | 合肥学院 | A kind of preparation method of the silicate red long afterglow luminescent powder of rare-earth doped titanium |
| CN111004030A (en) * | 2019-12-24 | 2020-04-14 | 苏州同拓光电科技有限公司 | MgTiO (magnesium-titanium-oxide) powder3Microwave-based dielectric ceramic and preparation method thereof |
| CN111763083A (en) * | 2020-06-15 | 2020-10-13 | 苏州瑞玛精密工业股份有限公司 | Low-temperature sintered ultralow-loss microwave dielectric ceramic and preparation method and application thereof |
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