CN103849935A - Quartz ampoule for zinc telluride crystal space growth - Google Patents
Quartz ampoule for zinc telluride crystal space growth Download PDFInfo
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- CN103849935A CN103849935A CN201410020955.3A CN201410020955A CN103849935A CN 103849935 A CN103849935 A CN 103849935A CN 201410020955 A CN201410020955 A CN 201410020955A CN 103849935 A CN103849935 A CN 103849935A
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Abstract
The invention discloses a quartz ampoule for zinc telluride crystal space growth, which is a quartz ampoule with a double-layer structure. The inner part is a sample quartz crucible; materials and a quartz plug are filled in sequence, and molten and encapsulated under vacuum, and the two ends of the quartz crucible are required to be flat; and then, the quartz crucible and a damping material are arranged in sequence, and filled in an outer tube of the quartz ampoule, and the double-layer ampoule is encapsulated after vacuum-pumping. The quartz ampoule disclosed by the invention is safe and reliable in structure, and especially suitable for being applied to a space growth experiment with strict requirements on mechanical environment.
Description
Technical field
The present invention relates to crystal growth preparation field, can meet the flux-grown requirement of crystal, resistance to shock good growth ampoule again, is specially adapted to growth under the more severe space microgravity condition of mechanical environment and is applied to the zinc telluridse crystalline material of Terahertz.
Background technology
Terahertz (THz) the hertzian wave T-ray that is otherwise known as, sub-millimeter wave.On electromagnetic spectrum, THz hertzian wave is between millimeter wave and infrared wave.Terahertz electromagnetic wave has considerable application in a lot of fundamental researchs field, industrial application and Military Application field.Along with the development of THz technology, THz technology also has very large application potential in biology, medical science, microtronics, agricultural and other field.
Zinc telluridse crystal is known as good Terahertz (THz) source of radiation and material for detector in the world, all obtains broad research in THz radiation and detection theory and application aspect.
The tellurium solvent method crystal growth of zinc telluridse crystal adopts vacuum-packed ampoule structure.The zinc telluridse of growing under space microgravity environment is different from ground, and main is the crystal growing furnace that crystal growing ampoule is housed, and in space vehicle transmitting and removal process, need stand strict mechanical environment test.Carrying out before Space Experiments, sample ampoules need to stand the inspections such as acceleration, impact, sinusoidal vibration scanning, random vibration in the mechanics environmental simulation test of ground.This intensity to quartz ampoule has proposed very high requirement.
The quartz ampoule that is applied to Growth In Space of the people such as Shen Jie (patent No. 98225116.5) design, need to fire quartz pushrod and the hydraucone that structure is more complicated at the pipe end, Zhou Yan flies to wait the quartz ampoule of people's (patent No. 200720066563.6) design, and concavo-convex quartz plug is inserted respectively with immobilization material in the two ends that need to close in quartz.These two kinds of quartz ampoule manufacture crafts are all more complicated.
Summary of the invention
The object of this invention is to provide a kind of safe and reliable zinc telluridse crystal growth quartz ampoule being applicable under space environment.Solve the quartz ampoule structure of existing space growth and the technical problem of complex manufacturing technology.
Growth In Space of the present invention with quartz ampoule as shown in Figure 1, it comprises: quartz crucible 1, quartzy stopper 2, quartz ampoule outer tube 3, damping material 4, tinsel 5 and quartzy push pipe 6.
Described quartz crucible 1 is shaped as flat circular long tube, and described quartzy stopper 2 is cylinders of the hollow of one end sealing, and described quartz ampoule outer tube 3 is long tubes of a test tube shape, and described quartzy push pipe 6 is cylinders of the hollow of one end sealing;
In quartz crucible 1, add clogging quartz crucible 1 upper opening of the crystal growth quartzy stopper 2 of the rear use of material 7, after vacuumizing by their sealings by fusing together; After damping material 4 is inserted in quartz ampoule outer tube 3 bottoms, put into the quartz crucible 1 that wraps layer of metal paper tinsel 5, insert damping material 4 on quartz crucible 1 top, pack quartzy push pipe 6 into, after vacuumizing, quartzy push pipe 6 and 3 meltings of quartz ampoule outer tube are encapsulated.
Described damping material (4) adopts boron nitride or graphite.
Described tinsel (5) adopts stainless steel foil or Copper Foil.
The invention has the advantages that:
1 full quartz construction, has the following advantages: the purity of guaranteeing growing crystal; Be conducive to keep encapsulate under the state of condition of high vacuum degree; Under identical crystal growth temperature, compared with metal ampoule structure, thermal radiation and thermal conduction are little, and therefore power consumption is little;
2 quartz ampoules are bilayer structure, if the quartz crucible of nexine in crystal growing process because the reasons such as thermal expansion have been broken, can not pollute growth furnace yet;
3 vacuumize the quartz crucible that tellurium solvent, polycrystalline ingot and quartzy stopper are housed successively, before sealing by fusing, first toast the tellurium solvent of crucible bottom, after it is melted, solidify again with polycrystalline ingot bottom and cement, reduce the mechanics unstable producing due to tellurium solvent (being generally block), improve the safe reliability in the severe mechanical environment of Space Experiments.
Brief description of the drawings:
Fig. 1 is the structure sectional view of Growth In Space provided by the invention quartz ampoule, in figure: 1-quartz crucible, 2-quartz stopper, 3-quartz ampoule outer tube, 4-damping material, 5-tinsel, 6-quartz push pipe, 7-material.
Fig. 2 is the zinc telluridse crystal space growth quartz ampoule structure sectional view in embodiment; Figure (a) is quartz crucible, and figure (b) is quartz ampoule overall texture; In figure: 8-zinc telluridse crystal ingot, 9-tellurium solvent.
Embodiment:
Taking the zinc telluridse crystal of growth diameter 8mm as example, concrete ampoule preparation method is as follows:
Quartz crucible 1: high-purity gas refining pipe, diameter 12mm, tolerance-0.2mm, length 105 ± 5mm, wall thickness 2mm, tapering 1:150.
Quartz stopper 2: diameter 4 ± 0.5mm, wall thickness 1mm.
Quartz ampoule outer tube 3: standard quartz pipe, diameter 15.67-0.2mm, wall thickness 2mm.
Damping material 4: select boron nitride, thick 5mm.
Tinsel 5: select Copper Foil, thick 0.38 ± 0.5mm.
Quartz push pipe 6: diameter is 8 ± 0.2mm, wall thickness 1mm.
Add tellurium solvent 9(1 gram in quartz crucible 1 bottom), pack zinc telluridse polycrystalline ingot 8(diameter 8mm into, length 70 ± 10mm) and quartzy stopper 2, vacuumize.With the tellurium solvent of oxyhydrogen flame baking quartz crucible 1 bottom to fusing, after cling its cooled and solidified and zinc telluridse polycrystalline ingot 8 bottoms, more per sample length at quartzy stopper 2 place's sealings by fusing.The sealing by fusing place of quartz crucible 1 is put on oxyhydrogen flame and is flattened with graphite block.
Said zinc telluridse polycrystalline ingot 8, for using high pure raw material zinc, the synthetic polycrystalline ingot of tellurium high temperature, dimensional requirement is mated with quartz crucible internal diameter, through ultrasonic cleaning in ethanol, dry rear stand-by.Tellurium solvent 9, selects high purity tellurium, the rising of its solubility with temperature to zinc telluridse and increasing.
In quartz ampoule outer tube 3, insert after damping material 4, quartz crucible smooth two 1 is put into, if gap is large between quartz crucible and quartz ampoule, after crucible outside wraps layer of metal paper tinsel 5, put into ampoule, then insert damping material 4, pack quartzy push pipe 6 into.After quartz push pipe 6 holds out against, quartz ampoule 8 is sealed with it, vacuumize encapsulation.
Claims (3)
1. a zinc telluridse crystal space growth quartz ampoule, it comprises: quartz crucible (1), quartzy stopper (2), quartz ampoule outer tube (3), damping material (4), tinsel (5) and quartzy push pipe (6); It is characterized in that:
Described quartz crucible (1) is shaped as flat circular long tube, described quartzy stopper (2) is the cylinder of the hollow of one end sealing, described quartz ampoule outer tube (3) is the long tube of a test tube shape, and described quartzy push pipe (6) is the cylinder of the hollow of one end sealing;
In quartz crucible (1), add after crystal growth material (7) with the clogging quartz crucible of quartzy stopper (2) (1) upper opening, after vacuumizing by their sealings by fusing together; After inserting damping material (4), quartz ampoule outer tube (3) bottom puts into the quartz crucible (1) that wraps layer of metal paper tinsel (5), insert damping material (4) on quartz crucible (1) top, pack quartzy push pipe (6) into, after vacuumizing, quartzy push pipe (6) and quartz ampoule outer tube (3) melting are encapsulated.
2. a kind of zinc telluridse crystal space growth quartz ampoule according to claim 1, is characterized in that: described damping material (4) adopts boron nitride or graphite.
3. a kind of zinc telluridse crystal space growth quartz ampoule according to claim 1, is characterized in that: described tinsel (5) adopts stainless steel foil or Copper Foil.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410020955.3A CN103849935A (en) | 2014-01-17 | 2014-01-17 | Quartz ampoule for zinc telluride crystal space growth |
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| CN201410020955.3A CN103849935A (en) | 2014-01-17 | 2014-01-17 | Quartz ampoule for zinc telluride crystal space growth |
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| CN103849935A true CN103849935A (en) | 2014-06-11 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908254A (en) * | 2016-06-12 | 2016-08-31 | 中国科学院上海技术物理研究所 | Casing pipe type cavity structure for preparing semiconductor material |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043195Y (en) * | 2007-01-23 | 2008-04-02 | 中国科学院上海硅酸盐研究所 | Double-layer quartz ampoule for material zone melting growth in space microgravity environment |
| CN203295665U (en) * | 2013-06-25 | 2013-11-20 | 中国科学院上海硅酸盐研究所 | Double-layer quartz ampoule |
| CN103409800A (en) * | 2013-07-17 | 2013-11-27 | 武汉高芯科技有限公司 | Large-diameter CdTe or CdZnTe polycrystalline rod synthesis apparatus and preparation method thereof |
| CN203768487U (en) * | 2014-01-17 | 2014-08-13 | 中国科学院上海技术物理研究所 | Quartz ampoule used for spatial growth of zinc telluride crystal |
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- 2014-01-17 CN CN201410020955.3A patent/CN103849935A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201043195Y (en) * | 2007-01-23 | 2008-04-02 | 中国科学院上海硅酸盐研究所 | Double-layer quartz ampoule for material zone melting growth in space microgravity environment |
| CN203295665U (en) * | 2013-06-25 | 2013-11-20 | 中国科学院上海硅酸盐研究所 | Double-layer quartz ampoule |
| CN103409800A (en) * | 2013-07-17 | 2013-11-27 | 武汉高芯科技有限公司 | Large-diameter CdTe or CdZnTe polycrystalline rod synthesis apparatus and preparation method thereof |
| CN203768487U (en) * | 2014-01-17 | 2014-08-13 | 中国科学院上海技术物理研究所 | Quartz ampoule used for spatial growth of zinc telluride crystal |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105908254A (en) * | 2016-06-12 | 2016-08-31 | 中国科学院上海技术物理研究所 | Casing pipe type cavity structure for preparing semiconductor material |
| CN105908254B (en) * | 2016-06-12 | 2018-07-06 | 中国科学院上海技术物理研究所 | A kind of bushing type cavity body structure for being used to prepare semi-conducting material |
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Application publication date: 20140611 |