CN109336400A - A method for making transparent glass-ceramic with near-infrared emission by sunlight pumping in a greenhouse - Google Patents
A method for making transparent glass-ceramic with near-infrared emission by sunlight pumping in a greenhouse Download PDFInfo
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- CN109336400A CN109336400A CN201811504333.2A CN201811504333A CN109336400A CN 109336400 A CN109336400 A CN 109336400A CN 201811504333 A CN201811504333 A CN 201811504333A CN 109336400 A CN109336400 A CN 109336400A
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- 238000005086 pumping Methods 0.000 title claims abstract description 32
- 238000000034 method Methods 0.000 title claims abstract description 16
- 239000002241 glass-ceramic Substances 0.000 title claims abstract description 15
- 239000011521 glass Substances 0.000 claims abstract description 61
- 150000002500 ions Chemical class 0.000 claims abstract description 30
- 239000011159 matrix material Substances 0.000 claims abstract description 11
- 238000004519 manufacturing process Methods 0.000 claims abstract description 9
- 239000000203 mixture Substances 0.000 claims abstract description 8
- 150000001875 compounds Chemical class 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 18
- 238000000137 annealing Methods 0.000 claims description 10
- 238000000227 grinding Methods 0.000 claims description 8
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 claims description 8
- 239000002994 raw material Substances 0.000 claims description 6
- 238000003303 reheating Methods 0.000 claims description 5
- 229910001369 Brass Inorganic materials 0.000 claims description 4
- 239000010951 brass Substances 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 4
- 229910052697 platinum Inorganic materials 0.000 claims description 4
- 229910009520 YbF3 Inorganic materials 0.000 claims description 3
- QDOXWKRWXJOMAK-UHFFFAOYSA-N chromium(III) oxide Inorganic materials O=[Cr]O[Cr]=O QDOXWKRWXJOMAK-UHFFFAOYSA-N 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- 238000005303 weighing Methods 0.000 claims description 2
- 238000002360 preparation method Methods 0.000 abstract description 10
- 239000013307 optical fiber Substances 0.000 abstract description 6
- 239000000126 substance Substances 0.000 abstract description 5
- 239000002912 waste gas Substances 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 14
- 239000000463 material Substances 0.000 description 11
- 238000006243 chemical reaction Methods 0.000 description 8
- 230000005284 excitation Effects 0.000 description 5
- 238000005286 illumination Methods 0.000 description 5
- 238000011160 research Methods 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 3
- 239000002178 crystalline material Substances 0.000 description 3
- 238000000295 emission spectrum Methods 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 239000004615 ingredient Substances 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- 230000007704 transition Effects 0.000 description 3
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- -1 Cr3+ ion Chemical class 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 238000000695 excitation spectrum Methods 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 229910052761 rare earth metal Inorganic materials 0.000 description 2
- 229910007486 ZnGa2O4 Inorganic materials 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005090 crystal field Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 229910001676 gahnite Inorganic materials 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 239000000146 host glass Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 239000000087 laser glass Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004020 luminiscence type Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 150000002910 rare earth metals Chemical class 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000002269 spontaneous effect Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 229910001428 transition metal ion Inorganic materials 0.000 description 1
Classifications
-
- 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
- C03C10/00—Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
- C03C10/16—Halogen containing crystalline phase
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B11/00—Pressing molten glass or performed glass reheated to equivalent low viscosity without blowing
-
- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B32/00—Thermal after-treatment of glass products not provided for in groups C03B19/00, C03B25/00 - C03B31/00 or C03B37/00, e.g. crystallisation, eliminating gas inclusions or other impurities; Hot-pressing vitrified, non-porous, shaped glass products
- C03B32/02—Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Crystallography & Structural Chemistry (AREA)
- Ceramic Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Dispersion Chemistry (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Glass Compositions (AREA)
Abstract
本发明属于太阳能激光器以及光纤近光器领域，具体涉及一种在温室中使太阳光泵浦近红外发射的透明微晶玻璃的制作方法。包括玻璃基质和掺杂离子，所制备的玻璃基质的化学组成为xSiO2‑(100‑x)/2KF‑(100‑x)/2ZnF2，各化合物的摩尔百分比之和为100％，掺杂离子是在玻璃基质的基础上掺杂0.1mol％Cr2O3和0.6mol％YbF3，本发明制备的微晶玻璃透明度高，发光效率高，而且具有优良的化学稳定性，制备工艺简单，可实现批量化生产。太阳光作为一种清洁能源，在使用过程中不会产生废气，同时，太阳能几乎是取之不尽，用之不竭的新能源，可以减少对传统化石能源的依赖。
The invention belongs to the field of solar energy lasers and optical fiber low-light devices, and particularly relates to a method for making transparent glass-ceramics for near-infrared emission by sunlight pumping in a greenhouse. Including a glass matrix and doping ions, the chemical composition of the prepared glass matrix is xSiO2‑(100‑x)/2KF‑(100‑x)/2ZnF2, the sum of the molar percentages of each compound is 100%, and the doping ions are Doping 0.1mol% Cr 2 O 3 and 0.6mol% YbF 3 on the basis of the glass matrix, the glass-ceramic prepared by the invention has high transparency, high luminous efficiency, excellent chemical stability, simple preparation process, and can realize mass production. As a kind of clean energy, sunlight will not generate waste gas during use. At the same time, solar energy is almost inexhaustible new energy, which can reduce the dependence on traditional fossil energy.
Description
Technical field
The invention belongs to solar energy laser and optical fiber dipped beam device fields, and in particular to one kind makes sunlight in the greenhouse
The production method for pumping the transparent glass-ceramics of near infrared emission.
Background technique
Laser is closely bound up with the daily life of the people, and with the invention of eighties of last century laser, laser is wide
General to be applied to medical treatment, biology is anti-fake, military, the every field such as illumination display.Principles of Laser Principles of Laser are based on Ai Yinsi
The smooth stimulated emission proposed in 1917 is theoretical, and until nineteen sixty, First laser is successfully made in Hughes Electronics of the U.S.
It creates.From there on, laser is by extensive concern, and has obtained development at full speed.Laser experienced from solid-state laser
Device is to gas laser, then arrives semiconductor laser, finally arrives the development of optical fiber laser.In numerous lasers, it is mostly
Population inversion is formed using specific pump light source excitation gain media and generates spontaneous emission light, is then subjected to swash, be shaken
Amplification is swung, realizes the output of laser.Sunlight is formed by the photoreactivation of multiple wavelength, theoretically, all because of luminescence generated by light reality
Existing laser output can be obtained by sun optical pumping.After first laser is manufactured, sun optical pumping
Pu laser is with regard in widespread attention.Sunlight pumping laser is that noncoherent sunlight is changed into relevant laser output, from
And realize and solar energy is preferably utilized, it can be relieved energy crisis to a certain extent.It is especially all very scarce in other energy
Weary place, for example in space, realize that the output of laser has very great significance tool using sun optical pumping.Sunlight
Pump laser all has specific gain media and oscillation chamber as other lasers, unlike, its pumping source is
The sunlight collected using height, and the pumping source of other lasers needs to convert by fossil energy etc..
1963, Kiss of Princeton University et al. prepared sun light pumped laser in the laboratory RCA for the first time.
1966, Young et al. carried out solar light collection using parabolic collection mirror, and mirror surface diameter is about 61cm, then used hyperbolic
Reflecting mirror shaping hot spot, obtains suitable hot spot.Then the gain for being 3mm using the direct pumping diameter of sunlight that acquisition focuses
Medium realizes the laser operation [9] in solid state laser for the first time.From their experimental result it can be seen that mix Nd3+ from
When sub- laser glass is by end pumping, the laser output of 1.3W can be obtained.It, can when Nd3+:YAG laser medium is by profile pump
The laser output of 0.8W is obtained, overall light-light conversion efficiency is very low, and below 1%.But this is that sun optical pumping realizes sharp
At one beginning of light output, from there on, people conduct extensive research sunlight pumping laser.1976, Walk etc.
People has carried out the experiment similar with Young, they are directly pumped using sunlight, and obtains the laser output of 5.6W.
Weksler et al. obtained the laser that power is 60W in solid laser medium Nd3+:YAG in 1988 and exports.1992
Weizmann laboratory researchers are in the two-dimensional composite parabolic condenser system for being placed with 3 Nd3+:Cr3+:GSGG crystal
In, it realizes the laser that power density is 160w/cm-3 and exports.1993, Krupin et al. collected sunlight in Israel, and
Nd3+:YAG crystal is directly pumped, and is exported it is expected that obtaining the laser that power is 500W, the condenser system of the experiment is a face
Product is the optical system of 600m2, has good congregational rate to sunlight.2003, Lando et al. was in such a way that side pumps
Research is compared to condenser system in Nd3+:YAG crystal, it is expected to obtain more efficient condenser system.Theirs sets
It counts there are two types of thinkings: first is that, make more sunlight irradiations to target area；Second is that by design so that condenser have to the greatest extent may be used
The big focusing ratio of energy.They use the laser bar of smaller size as laser gain medium, since gain media is with lesser
Thermal pressure, it is expected to obtain the high-power laser output of high light beam quality while reducing the area of condenser.But small size
Laser bar there are some problems in design, such as cooling problem.2005, beam David et al. was in Nd3+:YAG crystal bar
The continuous sunlight excitation laser output of 14.8W is realized, the gross efficiency of laser is 1.18%, and slope efficiency is about 1.5%.It is real
Testing middle crystal bar diameter is 4mm, and the doping concentration of length 20mm, Nd3+ ion is 1.1%.Japanese researchers are 2006
Year mixes two kinds of ions in gain media simultaneously, to improve the transfer efficiency of sun light pumped laser.One kind is sensitizer
Ion, one is active ions, is improved by way of increasing to the absorption and energy transmission of sunlight to sunlight
Transfer efficiency.Since Cr3+ ion has stronger wide band absorption peak in visible sunlight region, and between Nd3+ ion
Energy transfer efficiency with higher.2007, Yabe et al. obtained power in Cr3+:Nd3+:YAG ceramic crystal and is
24.4W, the laser that wavelength is 1064nm export.Sunlight is collected using Fresnel Lenses in experiment, and directly pumping laser is brilliant
Body, lens diameter are about 1.3m2.Later, 2008 and 2009, the sunlight excitation laser that they realize 80W again is defeated
Out, slope efficiency reaches 7-9%.This time, the Fresnel Lenses that they use is having a size of 2m × 2m, focal length 2m.The above is ground
Study carefully achievement to show: sun light pumped laser would be possible to reach higher power and efficiency in future.
Summary of the invention
The purpose of the present invention is obtain one kind in greenhouse by selecting suitable glass matrix and suitable Doped ions
In make sun optical pumping near infrared emission transparent glass-ceramics production method.
A kind of production method for the transparent glass-ceramics making sun optical pumping near infrared emission in the greenhouse, this method include
Following steps:
Step 1: raw material weighing is good, grinding is sufficiently mixed in grinding alms bowl；
Step 2: the mixture after grinding being fitted into platinum crucible plus lid, high temperature furnace inside holding is placed in and obtains solution
Glass；
Step 3: solution glass being poured in preheated brass die, be pressed into presoma glass sample；
Step 4: glass sample being placed in annealing furnace and is made annealing treatment, is cooled to room temperature；
Step 5: the glass sample that will be cooled to room temperature carries out reheating, obtains transparent glass-ceramics.
The molar percentage of raw material described in step 1 is xSiO2-(100-x)/2KF-(100-x)/2ZnF2, x value range
For 50-70；The sum of molar percentage of each compound is 100%, and Doped ions are adulterated on the basis of glass matrix
0.1mol%Cr2O3And 0.6mol%YbF3.High temperature in-furnace temperature described in step 2 is 1500 DEG C, and soaking time is 30 points
Clock.Temperature is 450 DEG C in annealing furnace described in step 4.Temperature is 540 DEG C in reheating environment described in step 5, heat treatment
Time is 20 hours, obtains transparent devitrified glass.
The invention has the benefit that devitrified glass transparency prepared by the present invention is high, luminous efficiency is high, and has excellent
Good chemical stability, preparation process are simple, it can be achieved that mass production.Sunlight was being used as a kind of clean energy resource
Exhaust gas will not be generated in journey, meanwhile, solar energy is almost inexhaustible new energy, it is possible to reduce to traditional
The dependence of the stone energy.
Detailed description of the invention
Fig. 1 is the emission spectrum comparison of the glass and devitrified glass under sun optical pumping.
Fig. 2 is the excitation spectrum for monitoring near infrared emission light and obtaining.
Fig. 3 is the emission spectrum that sample obtains under solar simulator excitation.
Specific embodiment
The present invention will be further described with reference to the accompanying drawing.
The present invention is to provide one kind can realize sun optical pumping, the transparent microcrystal glass of near infrared emission at room temperature
Glass.Including glass matrix and Doped ions, the chemical composition of prepared glass matrix is (mol%) xSiO2-(100-x)/
2ZnF2- (100-x)/2KF.(x=60, x can shine most by force in 50-70 range, but in x=60).Each compound
The sum of molar percentage be 100%.Doped ions are to adulterate 0.1mol%Cr on the basis of glass matrix2O3With
0.6mol%YbF3.Devitrified glass transparency prepared by the present invention is high, and luminous efficiency is high, and has excellent chemical stabilization
Property, preparation process is simple, it can be achieved that mass production.Sunlight will not generate in use as a kind of clean energy resource
Exhaust gas, meanwhile, solar energy is almost inexhaustible new energy, it is possible to reduce the dependence to traditional fossil energy.
The molar percentage of each raw material of glass matrix used is xSiO2-(100-x)/2KF-(100-x)/2ZnF2(x=
60, x can be in 50-70 range) Doped ions concentration be 0.1Cr2O3-0.6YbF3。
The preparation of sample the following steps are included:
(1) raw material of high-purity is weighed according to a certain ratio, is sufficiently mixed in grinding alms bowl；
(2) then mixture is fitted into platinum crucible, is placed in 1500 DEG C of high temperature furnace inside holding 30min；
(3) solution glass is poured in preheated brass die, is pressed into presoma glass sample；
(4) sample is placed in annealing furnace and is made annealing treatment, to eliminate the stress in glass, is cooled to room temperature after 3h；
(5) glass sample that will be cooled to room temperature carries out reheating, makes glass that fluoride microcrystal be precipitated, obtains crystallite glass
Glass.
Glass ingredient selected by the present invention realizes the absorption to sunlight and the transmitting of near-infrared.Monitor near-infrared
Transmitting, obtained laser almost covers entire sunlight spectrum, realizes the efficient utilization to solar energy.Fig. 1 is in the sun
The emission spectrum of glass and devitrified glass under optical pumping compares, and Fig. 2 is the excitation spectrum for monitoring near infrared emission light and obtaining.
A kind of transparent glass-ceramics that sun optical pumping near infrared emission can be achieved under greenhouse, including it is following interior
Hold:
1. the preparation of host glass:
With xSiO2-(100-x)/2KF-(100-x)/2ZnF2-0.1Cr2O3-0.6YbF3(x=60) (mol%) (x=50-
Can be in 70 ranges, shining as X=60 most strong) 30g mixture is placed in grinding alms bowl and is fully ground 20 minutes by ratio, and it will
Mixture is placed in platinum crucible plus lid, 30 minutes is kept the temperature under the conditions of 1500 DEG C in high temperature furnace, then by melt-glass
Liquid is cast in brass die, it is made to rapidly cool to form solid glass, then that glass is placed in 450 DEG C of annealing 3 in annealing furnace is small
When to eliminate the stress generated in glass, obtain final presoma glass sample, then by presoma glass under 540 DEG C of environment
Heat treatment 20 hours, obtains transparent devitrified glass.
2. the preparation of devitrified glass:
Presoma glass is heat-treated 20 hours under 540 DEG C of environment, obtains transparent devitrified glass.
Sun light pumped laser has the characteristics that some exclusive:
One, light conversion efficiency is high
Sun light pumped laser realizes that the process of laser is to belong to light-light conversion process, i.e., directly converts sunlight
At laser, without other intermediate energy sources conversions.So, higher to the utilization efficiency of solar energy, highest conversion effect
Rate is up to 20%.And conventional laser then needs that fossil energy is first converted into electric energy, is then excited by electric energy and generates two poles
Pipe laser, then go pumping gain media to realize laser output by diode laser.So, in intermediate conversion process
A large amount of energy is had lost, energy conversion efficiency is low, and process is cumbersome, higher cost.
Two, device structure is simple, takes up space few, at low cost
Sunlight excitation laser system does not need the process that fossil energy is converted to electric energy, therefore can save electric energy conversion
Relevant device, whole system structure are simple.Sunlight pumping laser is pumped using natural sunlight, does not need additionally to make
Standby pumping source, manufacturing cost are lower.
Three, cleaning is harmless, and the duration of runs is long
Fossil energy can be largely used in the preparation process of pumping source needed for conventional laser, fossil energy was using
Carbon dioxide isothermal chamber gas is inevitably generated in journey, so that greenhouse effects are aggravated, it is unfavorable to environment.Fossil energy is
Non-renewable energy resources increasingly consume, exhausted at last.And sun optical pumping pumping laser be directly adopt solar energy be converted to it is sharp
Light, solar energy is green clean, environmental sound in use process, and the solar energy amount of containing is huge, almost can be permanent
Ground uses, and the duration of runs is very long.
Cr3+Ion is a kind of transition metal ions, has 3d3Electron configuration.Unlike rare earth ion, Cr3+Ion
Electron transition not by 5s2p6The shielding of electronic shell, its luminescent properties are highly prone to the influence of ambient enviroment.Therefore,
Cr3+Ionoluminescence peak position depends primarily on crystal field strength Dq provided by host crystal, can pass through the crystalline field of change matrix
Intensity obtains tunable shine.In addition, Cr3+Ion it is luminous often derive from f-d transition, so as to cause its have from
To the broad-band illumination of near-infrared.So, Cr3+Ion doping should material tunable laser, bio-imaging etc. lead
Domain has great application value.
In past research, about Cr3+The luminescent material of ion doping mainly concentrates in crystalline material.Monocrystalline material
The preparation process of material is complicated, and cost is very high, can not mass production；Although polycrystalline material preparation is simple, the scattering between crystal boundary
Seriously, causing to shine, it is larger to lose.Importantly, crystalline material is difficult to realize optical fiber, limits it and led in optical-fiber laser
The application in domain.Glass material preparation is simple, has good light transmission and preferable processability, optical fiber easy to accomplish
Change.However, glass belongs to amorphous state material, short range is unordered, long-range order.Defect content is high in glass material, noradiative transition
It moves that probability is big, significantly reduces so as to cause the luminous efficiency of active ions, be difficult to obtain ideal luminance gain.Devitrified glass
Not only with the processing and light transmission advantage of glass material, but also there is the higher luminous efficiency of crystalline material, be it is a kind of have answer extensively
With the luminescent material of prospect.
Cr3+There is ion very big octahedron to select position energy, when crystal of the precipitation with appropriate case in devitrified glass, and
As octahedral sites ionic radius, price and Cr in crystal3+When close, Cr3+Ion is likely to enter in nano microcrystalline, is realized
The visible broad-band illumination of enhancing.In the past about Cr3+In the research of ion-doped micro crystallites glass, multiselect YAG, ZnAl2O4、
ZnGa2O4Equal crystallites system.In these system crystallites, Al3+Or Ga3+Ion is in octahedra hexa-coordinate case.Moreover,
Al3+Or Ga3+Ion and Cr3+Ionic radius is close.Therefore, Cr3+Ion easily enters in crystallite lattice, to obtain broadband
It is tunable to shine.Due to Cr3+With Zn2+The radius of ion and similar, works as Zn2+When ion is in hexa-coordinate crystal case, Cr3+
Easily replace Zn2+Ion enters in lattice, realizes broad-band illumination enhancing.KZnF3It is a kind of fluoride with perovskite structure
Crystal has lower phonon energy, is a kind of host material that luminous efficiency is high.Wherein, KZnF3Zn in crystal2+With eight
Face body hexa-coordinate, can be by Cr3+Replace, to be expected to obtain the higher Cr of luminous efficiency3+Ion characteristic shines.In this chapter, choosing
Certain glass ingredient is taken to prepare Cr3+The presoma glass of ion doping, then be heat-treated at a suitable temperature it is expected to be made
KZnF is precipitated3The devitrified glass of crystal.It is tested by luminescent properties and micro-structure, chooses optimal glass ingredient, Cr3+Ion is mixed
Miscellaneous concentration and heat treatment condition, to obtain the higher visible light broad-band illumination of luminous efficiency.Meanwhile only there are two energy by Yb3+
Grade, the emission effciency of near-infrared will close to 100%, be a kind of rare earth for being able to achieve near infrared emission well from.Therefore, Cr-
The devitrified glass that Yb is co-doped with will be a kind of gain media for having excellent Tang Guang light pumped laser.
Claims (5)
1. the production method that one kind makes the transparent glass-ceramics of sun optical pumping near infrared emission in the greenhouse, which is characterized in that
Method includes the following steps:
Step 1: raw material weighing is good, grinding is sufficiently mixed in grinding alms bowl；
Step 2: the mixture after grinding being fitted into platinum crucible plus lid, high temperature furnace inside holding is placed in and obtains solution glass
Glass；
Step 3: solution glass being poured in preheated brass die, be pressed into presoma glass sample；
Step 4: glass sample being placed in annealing furnace and is made annealing treatment, is cooled to room temperature；
Step 5: the glass sample that will be cooled to room temperature carries out reheating, obtains transparent glass-ceramics.
2. the system that one kind according to claim 1 makes the transparent glass-ceramics of sun optical pumping near infrared emission in the greenhouse
Make method, it is characterised in that: the molar percentage of raw material described in step 1 is xSiO2-(100-x)/2KF-(100-x)/
2ZnF2, x value range is 50-70；The sum of molar percentage of each compound is 100%, and Doped ions are in glass matrix
On the basis of adulterate 0.1mol%Cr2O3And 0.6mol%YbF3。
3. the system that one kind according to claim 1 makes the transparent glass-ceramics of sun optical pumping near infrared emission in the greenhouse
Make method, it is characterised in that: high temperature in-furnace temperature described in step 2 is 1500 DEG C, and soaking time is 30 minutes.
4. the system that one kind according to claim 1 makes the transparent glass-ceramics of sun optical pumping near infrared emission in the greenhouse
Make method, it is characterised in that: temperature is 450 DEG C in annealing furnace described in step 4.
5. the system that one kind according to claim 1 makes the transparent glass-ceramics of sun optical pumping near infrared emission in the greenhouse
Make method, it is characterised in that: temperature is 540 DEG C in reheating environment described in step 5, and heat treatment time is 20 hours, is obtained
To transparent devitrified glass.
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| CN201811504333.2A CN109336400A (en) | 2018-12-10 | 2018-12-10 | A method for making transparent glass-ceramic with near-infrared emission by sunlight pumping in a greenhouse |
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| CN201811504333.2A CN109336400A (en) | 2018-12-10 | 2018-12-10 | A method for making transparent glass-ceramic with near-infrared emission by sunlight pumping in a greenhouse |
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| EP0099221A1 (en) * | 1982-07-06 | 1984-01-25 | Corning Glass Works | Transparent glass-ceramics containing mullite and production thereof |
| CN104310786A (en) * | 2014-10-09 | 2015-01-28 | 华南理工大学 | Microcrystal glass material with ultra wide band near-infrared light emission and preparation method of microcrystal glass material |
| CN106348610A (en) * | 2016-08-30 | 2017-01-25 | 华南理工大学 | A kind of Co2+: KZnF3 glass ceramics and its preparation method and application |
| CN108675641A (en) * | 2018-05-31 | 2018-10-19 | 华南理工大学 | A kind of devitrified glass and its preparation method and application of double mode temperature sensing |
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Application publication date: 20190215 |