CN109371502A - A kind of cubic pyrochlore phase nanofiber preparation method and applications based on method of electrostatic spinning - Google Patents
A kind of cubic pyrochlore phase nanofiber preparation method and applications based on method of electrostatic spinning Download PDFInfo
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- CN109371502A CN109371502A CN201811361254.0A CN201811361254A CN109371502A CN 109371502 A CN109371502 A CN 109371502A CN 201811361254 A CN201811361254 A CN 201811361254A CN 109371502 A CN109371502 A CN 109371502A
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F9/00—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments
- D01F9/08—Artificial filaments or the like of other substances; Manufacture thereof; Apparatus specially adapted for the manufacture of carbon filaments of inorganic material
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- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/02—Preparation of spinning solutions
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Abstract
The cubic pyrochlore phase nanofiber preparation method and applications based on method of electrostatic spinning that the invention discloses a kind of, using dimethylformamide as solvent, and appropriate polyvinylpyrrolidone is added, the droplet formation taylor cone under electrostatic field, one-dimensional nano material is prepared using method of electrostatic spinning under surface tension of liquid and electric field action power, through heating, heat preservation and temperature-fall period after, organic substance residues are removed, cubic pyrochlore phase monodimension nanometer material is prepared.The doping process and traditional codope or more doping processes of other rare earth ions are avoided, preparation method is simple, and it is reproducible, mass production requirement can be met.Involved Green upconversion luminescent matrix is oxide, and chemical stability is good, the nontoxic and cheap demand for readily satisfying industrialized production.The nano material of the burnt green stone phase of the One-Dimensional Pure of preparation is expected to play an important role in fields such as display, anti-fake, biological detection, infrared sensor, solar photovoltaic devices.
Description
Technical field
The invention belongs to rare-earth ternary Bi2Ti2O7: the preparation of Er compound monodimension nanometer material and field of luminescent technology, tool
Body is related to a kind of cubic pyrochlore phase nanofiber preparation method and applications based on method of electrostatic spinning.
Background technique
Up-conversion luminescent material is a kind of novel optical function material that invisible infrared light can be become to visible light
Material, also referred to as multiphoton material.It is equal in fields such as anti-counterfeit field, display field, biological detection, imaging and disease photo-thermal therapies
There is very important application value.Current main up-conversion luminescent material can be divided into rare earth fluoride (with NaYF by matrix4Deng
To represent), rare earth oxychloride is (with YOCl3Deng for representative), rare-earth oxide sulfate is (with La2O2S、Y2O2S etc. be representative), rare earth
Oxide and composite oxides are (with Y2O3Deng for representative).Wherein rear-earth-doped converting luminescent material of fluoride is due to having
Phonon energy is small, and nonradiative relaxation is small and is widely studied.The wherein NaYF of hexagonal phase4Basis material is due to higher hair
Light efficiency becomes a kind of compound of most study in rare earth fluoride, however, it is necessary to by the doping of double rare-earth elements and
The excited by visible light such as the feux rouges, green light, blue light for adulterating to realize upper conversion of more rare earth elements.
Bi2Ti2O7: Er ternary compound is cubic pyrochlore structure, belongs to Fd-3m (227) space group, lattice constant
It is a=10.359 angstroms.Up to the present, about Bi2Ti2O7Matrix report mainly includes following aspect: from the angle of application
Speech, Bi2Ti2O7Material can be used as a kind of photochemical catalyst；It has very high dielectric constant simultaneously, is also suitble in dynamic random
Make storage media in access memory (DRAM)；For its optical property research, current report is relatively fewer.But so far
There are no to Bi2Ti2O7The report of conversion performance thereon is studied by single rare earth doping for matrix.Oxide has chemistry
The advantages that stability is good, high mechanical strength, non-toxic.For fluoride system, the application field of oxide is more
Add extensively.Therefore research using oxide as the up-conversion of matrix be very it is necessary to.Simultaneously because monodimension nanometer material
Structure has big specific surface area and special one-dimentional structure, meets photon and transmits along one-dimensional square, avoids mixed and disorderly interface pair
In the scattering of photon, it help to obtain better luminescent properties.
For preparation process, for Bi2Ti2O7Material is concentrated mainly on sol-gel process, hydro-thermal method, solid phase reaction
Method, various deposition methods (such as pulse laser deposition etc.)；One-dimensional Bi is obtained by electrospinning process2Ti2O7Nanofiber
It is a biggish challenge.
Summary of the invention
In view of the above-mentioned deficiencies in the prior art, the technical problem to be solved by the present invention is that providing a kind of based on electrostatic
The Jiao Lvshi phase Bi of spin processes2Ti2O7: Er nanofiber preparation method and up-conversion luminescence are obtained by the method for electrostatic spinning
One-dimensional nano material predecessor.Pure cubic pyrochlore phase Bi is obtained by subsequent heat treatment2Ti2O7: Er ternary compound
Object obtains adulterate in other rare earth elements as sensitizer and in the case where using oxide as matrix with visually for the first time
The green emitting for the upper conversion being observed that.
The invention adopts the following technical scheme:
A kind of cubic pyrochlore phase nanofiber preparation method based on method of electrostatic spinning, which is characterized in that with dimethyl
Formamide is solvent, polyvinylpyrrolidone is added, electrostatic spinning precursor liquid is made, the droplet formation taylor cone under electrostatic field, benefit
One-dimensional nano material is prepared with method of electrostatic spinning, removes organic substance residues through heating, heat preservation and cooling after, is prepared into
To cubic pyrochlore phase Bi2Ti2O7: Er nano material.
Specifically, the step of preparing electrostatic spinning precursor liquid is as follows:
S1, solution A is made in acetic acid and dimethylformamide mixing；
S2, the solution A of step S1 preparation is stirred and butyl titanate is added solution B is made；
S3, the solution B of step S2 preparation is stirred and erbium nitrate is added solution C is made；
Bismuth nitrate is added in S4, the solution C prepared to step S3, solution D is made；
Polyvinylpyrrolidone stirring is added in S5, the solution D prepared to step S4 and is configured to electrostatic spinning precursor liquid.
Further, in step S1, the mass ratio of acetic acid and dimethylformamide is (0.3~0.6): 1.
Further, in step S2, the mass ratio of solution A and butyl titanate is (1.5~2): 1.
Further, in step S3, the mass ratio of solution B and nitric acid jade or pearl earring is (14~32): 1.
Further, in step S4, the mass ratio of solution C and bismuth nitrate is (15~34): 1.
Further, in step S5, the polyvinylpyrrolidone of mass fraction 5~20% is added.
Specifically, applying 18~25 kilovolts of high-voltage electricity, the rate for controlling micro flow precession device is 10~20 μ l/m, will be quiet
Electrospun precursor liquid is ejected on collector.
Specifically, going organic substance residues specifically: heating rate be 4~10 DEG C/min, annealing temperature be 600~
800 DEG C, the processing time is 1~3 hour, then naturally cools to room temperature.
The Jiao Lvshi phase Bi of cubic pyrochlore phase nanofiber preparation method preparation based on method of electrostatic spinning2Ti2O7: Er
Nano material is suitable for display in upper conversion green emitting applications to nanostructures, the upper conversion green emitting nano material
Part, security devices, biological detection device, infrared sensor and solar photovoltaic device.
Compared with prior art, the present invention at least has the advantages that
A kind of burnt green stone phase Bi of method of electrostatic spinning preparation of the present invention2Ti2O7: the method for Er nano material, with dimethyl formyl
Amine DMF is solvent, and appropriate polyvinylpyrrolidone PVP is added, the droplet formation taylor cone under electrostatic field, in liquid surface
One-dimensional nano material is prepared using method of electrostatic spinning under power and electric field action power, through heating, heat preservation and cooling after
Afterwards, pure cubic pyrochlore phase Bi is prepared after removing organic substance2Ti2O7: Er monodimension nanometer material, and swash in near-infrared
Giving, which realizes visible light, shines, and is a kind of novel single doping up-conversion luminescence nanofiber.
Further, in order to meet the requirement of industrialized production, use acetic acid and DMF for solvent, acetic acid can inhibit titanium
The hydrolysis in source can be such that solute is sufficiently mixed by solvent of DMF, achieve the purpose that accurately to control stoichiometric ratio, and obtain molten
Liquid A；A certain amount of butyl titanate is added in solution A and dissolves it sufficiently, it is therefore an objective to introduce titanium source, obtain solution B；
Quantitative erbium nitrate is added in solution B and is sufficiently stirred, it is therefore an objective to introduce erbium source, it is made to reach atom with butyl titanate
The mixing of rank, and obtain solution C；Quantitative bismuth nitrate is added in solution C and is sufficiently stirred, it is therefore an objective to bismuth source is introduced, and
Obtain solution D；Suitable PVP is added, to increase the viscosity of solution, establishes the basis for carrying out electrostatic spinning.
Further, apply high voltage power supply, it is therefore an objective to taylor cone is formed at syringe needle.
Further, the nano wire on collector is made annealing treatment, it is therefore an objective to obtain the Jiao Lvshi phase of high crystalline
Bi2Ti2O7: Er nano material.
The invention also discloses green emitting nano material is converted in one kind, Green upconversion luminescent does not have to any sensitizer
It can be obtained, be expected to play in fields such as display, anti-fake, biological detection, immunoassay, solar photovoltaic device preparations important
Effect.
In conclusion preparation method is simple by the present invention, and it is reproducible, mass production requirement can be met, avoided
The doping process of other rare earth ions simplifies traditional codope or more doping processes.
Below by drawings and examples, technical scheme of the present invention will be described in further detail.
Detailed description of the invention
Fig. 1 is the Bi that the embodiment of the present invention 1 synthesizes2Ti2O7: the scanning electron microscopy picture (SEM) of Er nano material；
Fig. 2 is the Bi that the embodiment of the present invention 2 synthesizes2Ti2O7: the up-conversion luminescence performance map of the nano material of Er；
Fig. 3 is the Bi that the embodiment of the present invention 3 synthesizes2Ti2O7: the X-ray diffraction spectrum of the nano material of Er；
Fig. 4 is the Bi that the embodiment of the present invention 4 synthesizes2Ti2O7: the X-ray diffraction spectrum of the nano material of Er；
Fig. 5 is the Bi that the embodiment of the present invention 5 synthesizes2Ti2O7: the X-ray diffraction spectrum of the nano material of Er.
Specific embodiment
The cubic pyrochlore phase nanofiber preparation method and applications based on method of electrostatic spinning that the present invention provides a kind of,
Using dimethylformamide DMF as solvent, and appropriate PVP is added, by under electrostatic field, droplet formation taylor cone, in liquid
One-dimensional nano material is obtained under the active force of surface tension and electric field, then passes through heating, heat preservation and cooling three phases,
Obtaining has the good pure cubic pyrochlore phase Bi of crystal property2Ti2O7: Er monodimension nanometer material.Pass through swashing for near-infrared light source
It sends out (such as 980 nanometers), obtain had in other rare earth doped and using oxide as matrix in the case wheres for the first time
The green emitting for the upper conversion that naked eyes are observed that.
A kind of cubic pyrochlore phase nanofiber preparation method based on method of electrostatic spinning of the present invention, comprising the following steps:
S1, by DMF and acetic acid according to 1:(0.3~0.6) mass ratio be mixed and stirred for, i.e., acquisition solution A；
S2, during being stirred continuously, will with the mass ratio of solution A be 1:(1.5~2) butyl titanate be added to it is molten
In liquid A, solution B can be obtained；
S3, during being stirred continuously will with the mass ratio of solution B be 1:(14~32) erbium nitrate be added in solution B
Solution C can be obtained；
S4, during being stirred continuously will with the mass ratio of solution C be 1:(15~34) bismuth nitrate be added in solution C
Solution D can be obtained；
S5, into solution C be added 5~10% (mass fractions) PVP and stirring be made into electrostatic spinning precursor liquid；
S6, in the case where applying 18~25 kilovolts of high voltage power supplies, by precursor liquid pass through micro flow precession device control speed
10~20 μ l/m of rate, which is ejected on collector, carries out electrostatic spinning；
S7, to electrostatic spinning after, the nano material on collector is made annealing treatment, can be obtained crystal property
High Jiao Lvshi phase Bi2Ti2O7: Er nano material.
Heating rate is 2~10 DEG C/min, and the temperature of annealing is 600~800 DEG C, and the processing time is 1~3 hour,
Then naturally cool to room temperature.
By the illumination (980 nanometers) of near-infrared light source, the visible green of naked eyes within the scope of visible waveband is inspired
It shines, obtains a kind of rare earth doped without other and using oxide as the upper conversion green emitting nano material of matrix.
Present invention combination electrospinning process obtains one-dimensional Bi2Ti2O7: Er nano material, and realize single doping erbium i.e.
Upper conversion process, which can be achieved, has special significance and practical value
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.The present invention being described and shown in usually here in attached drawing is real
The component for applying example can be arranged and be designed by a variety of different configurations.Therefore, below to the present invention provided in the accompanying drawings
The detailed description of embodiment be not intended to limit the range of claimed invention, but be merely representative of of the invention selected
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are obtained without creative efforts
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Embodiment 1
DMF is mixed with acetic acid according to the mass ratio of 0.3:1, forms transparent solution by magnetic agitation；Then it is added
The butyl titanate of 0.8ml simultaneously dissolves it sufficiently by stirring；The erbium nitrate of 0.11g is added under fast stirring；It is filled to it
Divide after dissolving the bismuth nitrate that 1.05g is added and be sufficiently stirred and make it dissolve, is eventually adding the PVP that mass fraction is 5%, magnetic force stirs
Electrostatic spinning precursor liquid is obtained after mixing.It is 18KV in control voltage, under conditions of flow is 10 μ l/m, occurs on the collector big
Measure nano material, to electrostatic spinning after, the nano material on collector is transferred in Muffle furnace and with the speed of 4 DEG C/min
Rate is raised to 600 DEG C and keeps the temperature 1 hour, can be obtained the high Jiao Lvshi phase Bi of crystal property2Ti2O7: Er nano material.
Fig. 1 provides Er obtained2Ti2O7The Scanning Electron micro-image (SEM) of nano material, as can be seen from the figure
The diameter of nano material is distributed in 200~500 nanometers.
Embodiment 2
DMF is mixed with acetic acid according to the mass ratio of 0.4:1, forms transparent solution by magnetic agitation；Then it is added
The butyl titanate of 0.81ml simultaneously dissolves it sufficiently by stirring；The erbium nitrate of 0.13g is added under fast stirring；It is filled to it
Divide after dissolving the bismuth nitrate that 1.02g is added and be sufficiently stirred and make it dissolve, is eventually adding the PVP that mass fraction is 6%, magnetic force stirs
Electrostatic spinning precursor liquid is obtained after mixing.It is 20KV in control voltage, under conditions of flow is 12 μ l/m, occurs on the collector big
Measure nano material, to electrostatic spinning after, the nano material on collector is transferred in Muffle furnace and with the speed of 6 DEG C/min
Rate is raised to 650 DEG C and keeps the temperature 1.5 hours, can be obtained the high Jiao Lvshi phase Bi of crystal property2Ti2O7: Er nano material.
Fig. 2 provide wavelength 980nm laser be excitaton source, the up-conversion luminescence performance of acquisition, test wavelength range 200~
900nm, time of integration 30ms.
Embodiment 3
DMF is mixed with acetic acid according to the mass ratio of 0.4:1, forms transparent solution by magnetic agitation；Then it is added
The butyl titanate of 0.83ml simultaneously dissolves it sufficiently by stirring；The erbium nitrate of 0.13g is added under fast stirring；It is filled to it
Divide after dissolving the bismuth nitrate that 1.02g is added and be sufficiently stirred and make it dissolve, is eventually adding the PVP that mass fraction is 8%, magnetic force stirs
Electrostatic spinning precursor liquid is obtained after mixing.It is 22KV in control voltage, under conditions of flow is 15 μ l/m, occurs on the collector big
Measure nano material, to electrostatic spinning after, the nano material on collector is transferred in Muffle furnace and with the speed of 8 DEG C/min
Rate is raised to 750 DEG C and keeps the temperature 2 hours, can be obtained the high Jiao Lvshi phase Bi of crystal property2Ti2O7: Er nano material.
Fig. 3 is provided nano material obtained and is spread out map using X-ray, and powder obtained is existed using X-ray diffractometer
It is scanned between 10-80 degree, powder sample shows polycrystalline diffraction characteristics, all diffraction maximums and Er2Ti2O7Standard card
(PDF#97-009-9436) it fits like a glove, occurs without any miscellaneous peak, it was demonstrated that powder obtained is Bi2Ti2O7Jiao Lvshi phase.
Wherein 2 θ angles are highest peaks at 29.854 °, corresponding Bi2Ti2O7(222) crystal face of standard card.
Embodiment 4
DMF is mixed with acetic acid according to the mass ratio of 0.5:1, forms transparent solution by magnetic agitation；Then it is added
The butyl titanate of 0.84ml simultaneously dissolves it sufficiently by stirring；The erbium nitrate of 0.18g is added under fast stirring；It is filled to it
Divide after dissolving the bismuth nitrate that 0.97g is added and be sufficiently stirred and make it dissolve, is eventually adding the PVP that mass fraction is 9%, magnetic force stirs
Electrostatic spinning precursor liquid is obtained after mixing.It is 24KV in control voltage, under conditions of flow is 18 μ l/m, occurs on the collector big
Measure nano material, to electrostatic spinning after, the nano material on collector is transferred in Muffle furnace and with the speed of 8 DEG C/min
Rate is raised to 800 DEG C and keeps the temperature 2 hours, can be obtained the high Jiao Lvshi phase Bi of crystal property2Ti2O7: Er nano material.
Fig. 4 is provided nano material obtained and is spread out map using X-ray: all diffraction maximums and Bi2Ti2O7Standard card
(PDF#97-009-9436) it fits like a glove, it was demonstrated that also without changing Bi under this technique2Ti2O7The structure of cubic pyrochlore phase.
Embodiment 5
DMF is mixed with acetic acid according to the mass ratio of 0.6:1, forms transparent solution by magnetic agitation；Then it is added
The butyl titanate of 0.85ml simultaneously dissolves it sufficiently by stirring；The erbium nitrate of 0.15g is added under fast stirring；It is filled to it
Divide after dissolving the bismuth nitrate that 0.99g is added and be sufficiently stirred and make it dissolve, is eventually adding the PVP that mass fraction is 10%, magnetic force
Electrostatic spinning precursor liquid is obtained after stirring.It is that 25KV occurs on the collector under conditions of flow is 20 μ l/m in control voltage
A large amount of nano materials, to electrostatic spinning after, the nano material on collector is transferred in Muffle furnace and with 10 DEG C/min
Rate be raised to 800 DEG C keep the temperature 3 hours, can be obtained the high Jiao Lvshi phase Bi of crystal property2Ti2O7: Er nano material.
Fig. 5 is provided nano material obtained and is spread out map using X-ray: all diffraction maximums and Bi2Ti2O7Standard card
(PDF#97-009-9436) it fits like a glove, occurs without any miscellaneous peak, it was demonstrated that also without changing Bi under this technique2Ti2O7It is vertical
The structure of the burnt green stone phase in side.
The present invention avoids the doping process of other rare earth ions, simplifies tradition due to not being related to the use of sensitizer
Codope or adulterate process more, preparation method is simple for used monodimension nanometer material, reproducible, can meet batch
Quantify production requirement.Involved Green upconversion luminescent, which does not have to any sensitizer, can be obtained, and used matrix is oxygen
Compound, chemical stability are good.The nontoxic and cheap demand for readily satisfying industrialized production.
Using the Bi of the burnt green stone phase of One-Dimensional Pure prepared by preparation method of the present invention2Ti2O7: Er nano material be expected to display,
The fields such as anti-fake, biological detection, infrared sensor, solar photovoltaic device play an important role.
The above content is merely illustrative of the invention's technical idea, and this does not limit the scope of protection of the present invention, all to press
According to technical idea proposed by the present invention, any changes made on the basis of the technical scheme each falls within claims of the present invention
Protection scope within.
Claims (10)
1. a kind of cubic pyrochlore phase nanofiber preparation method based on method of electrostatic spinning, which is characterized in that with dimethyl methyl
Amide is solvent, polyvinylpyrrolidone is added, electrostatic spinning precursor liquid is made, and the droplet formation taylor cone under electrostatic field utilizes
One-dimensional nano material is prepared in method of electrostatic spinning, removes organic substance residues through heating, heat preservation and cooling after, is prepared
Cubic pyrochlore phase Bi2Ti2O7: Er nano material.
2. the cubic pyrochlore phase nanofiber preparation method according to claim 1 based on method of electrostatic spinning, feature
The step of being, preparing electrostatic spinning precursor liquid is as follows:
S1, solution A is made in acetic acid and dimethylformamide mixing；
S2, the solution A of step S1 preparation is stirred and butyl titanate is added solution B is made；
S3, the solution B of step S2 preparation is stirred and erbium nitrate is added solution C is made；
Bismuth nitrate is added in S4, the solution C prepared to step S3, solution D is made；
Polyvinylpyrrolidone stirring is added in S5, the solution D prepared to step S4 and is configured to electrostatic spinning precursor liquid.
3. the cubic pyrochlore phase nanofiber preparation method according to claim 2 based on method of electrostatic spinning, feature
It is, in step S1, the mass ratio of acetic acid and dimethylformamide is (0.3~0.6): 1.
4. the cubic pyrochlore phase nanofiber preparation method according to claim 2 based on method of electrostatic spinning, feature
It is, in step S2, the mass ratio of solution A and butyl titanate is (1.5~2): 1.
5. the cubic pyrochlore phase nanofiber preparation method according to claim 2 based on method of electrostatic spinning, feature
It is, in step S3, the mass ratio of solution B and nitric acid jade or pearl earring is (14~32): 1.
6. the cubic pyrochlore phase nanofiber preparation method according to claim 2 based on method of electrostatic spinning, feature
It is, in step S4, the mass ratio of solution C and bismuth nitrate is (15~34): 1.
7. the cubic pyrochlore phase nanofiber preparation method according to claim 2 based on method of electrostatic spinning, feature
It is, in step S5, the polyvinylpyrrolidone of mass fraction 5~20% is added.
8. the cubic pyrochlore phase nanofiber preparation method according to claim 1 based on method of electrostatic spinning, feature
It is, applies 18~25 kilovolts of high-voltage electricity, the rate for controlling micro flow precession device is 10~20 μ l/m, by electrostatic spinning forerunner
Liquid is ejected on collector.
9. the cubic pyrochlore phase nanofiber preparation method according to claim 1 based on method of electrostatic spinning, feature
It is, goes organic substance residues specifically: heating rate is 4~10 DEG C/min, and annealing temperature is 600~800 DEG C, when processing
Between be 1~3 hour, then naturally cool to room temperature.
10. according to claim 1 to the cubic pyrochlore phase nanofiber preparation side described in any one of 9 based on method of electrostatic spinning
The Jiao Lvshi phase Bi of method preparation2Ti2O7: for Er nano material in upper conversion green emitting applications to nanostructures, the upper conversion is green
Color Illuminant nanometer material is suitable for display device, security devices, biological detection device, infrared sensor and photovoltaic device
Part.
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| CN109913979A (en) * | 2019-03-15 | 2019-06-21 | 陕西科技大学 | A kind of holmium double doped miscellaneous Jiao Lvshi phase nanofiber preparation method and applications of rare earth ytterbium |
| CN109943915A (en) * | 2019-03-15 | 2019-06-28 | 陕西科技大学 | A kind of ytterbium thulium codope blue-light-emitting Jiao Lvshi phase nanofiber preparation method and applications |
| CN109943916A (en) * | 2019-03-15 | 2019-06-28 | 陕西科技大学 | A kind of rare earth ytterbium erbium codope Jiao Lvshi phase nanofiber preparation method and applications |
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| CN109913979A (en) * | 2019-03-15 | 2019-06-21 | 陕西科技大学 | A kind of holmium double doped miscellaneous Jiao Lvshi phase nanofiber preparation method and applications of rare earth ytterbium |
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| CN109943916A (en) * | 2019-03-15 | 2019-06-28 | 陕西科技大学 | A kind of rare earth ytterbium erbium codope Jiao Lvshi phase nanofiber preparation method and applications |
| CN109913979B (en) * | 2019-03-15 | 2022-02-01 | 陕西科技大学 | Preparation method and application of rare earth ytterbium and holmium double-doped pyrochlore phase nanofiber |
| CN109943915B (en) * | 2019-03-15 | 2022-02-01 | 陕西科技大学 | Preparation method and application of ytterbium and thulium double-doped blue luminescent pyrochlore phase nanofiber |
| CN109943916B (en) * | 2019-03-15 | 2022-02-01 | 陕西科技大学 | Preparation method and application of rare earth ytterbium and erbium co-doped pyrochlore phase nanofiber |
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