CN101619489B - Non-linear optical crystal tetrahydrate pentaborate potassium aluminate, preparation method and application thereof - Google Patents
Non-linear optical crystal tetrahydrate pentaborate potassium aluminate, preparation method and application thereof Download PDFInfo
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- CN101619489B CN101619489B CN200810071331A CN200810071331A CN101619489B CN 101619489 B CN101619489 B CN 101619489B CN 200810071331 A CN200810071331 A CN 200810071331A CN 200810071331 A CN200810071331 A CN 200810071331A CN 101619489 B CN101619489 B CN 101619489B
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- pentaborate
- tetrahydrate
- linear optical
- equal
- potassium aluminate
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Abstract
The invention relates to a non-linear optical crystal tetrahydrate pentaborate potassium aluminate, a preparation method and application thereof. The non-linear optical crystal tetrahydrate pentaborate potassium aluminate has a chemical formula of K2Al(B5O10).4H2O; and the chemical formula contain molecular weight of 391.29, belongs to orthorhombic system with a space group of C222(1), single cell parameters: a is equal to 9.340(3), b is equal to 10.308 (3), c is equal to 13.777 (5)*, alpha, beta and gamma are equal to 90 degrees, V is equal to 1326.4(8)*<3> and Z is equal to 4. The novel non-linear optical crystal tetrahydrate pentaborate potassium aluminate is prepared by a water (agent) thermal method. The tetrahydrate pentaborate potassium aluminate has excellent non-linear optical property, and the power SHG coefficient thereof is two times of KDP, which corresponds to LBO.
Description
Technical field
The present invention relates to a kind of nonlinear optical material four hydrations five aluminium borate potassium (chemical formulas: K
2Al [B
5O
10] 4H
2O) preparation and application.
Background technology
(Nonlinear Optics is a frontier of contemporary optics NLO) to nonlinear optics, is the research response of material and science of the nonlinear relationship that field intensity appears under the high light effect.In numerous nonlinear optical effects, frequency-doubled effect (SHG) be the most noticeable also be the nonlinear effect of studying at most.Optical material with nonlinear effect is in modern times in the science and technology; In particularly some civilian and military high-tech areas; For example photoelectricity communication, optical information storage, integrated circuit, photoswitch, light limiter, color laser printing, blinding laser weapons, the ocean locating fish etc. all have a series of important application.
Research shows that the compound that borate compound is compared other type more is prone to form non-centrosymmetrical structure, but not the structure of the heart is the precondition that produces nonlinear optical effect.Therefore, for a long time, the borate crystal of nonlinear optics is people's a research focus always.The nonlinear optics borate crystal of practical application comprises LiB at present
3O
5(LBO), β-BaB
2O
4(BBO), BiB
3O
6(BIBO) etc.Though these nonlinear optical materials are widely used in all trades and professions, yet different fields is also different to the requirement of nonlinear optical material, therefore can not have single nonlinear optical material optimization to be applied to all fields.This has just proposed requirement to the diversity of nonlinear optical material, so that can the specific nonlinear optical material of optimized selection in specific field.So be necessary to continue to seek and develop new nonlinear optical material.We are through adopting AlO
4The boron anion bunch coordinated groups of gathering of the tetrahedron group and the non-heart is dressed up the strategy of non-core structure, thereby has obtained the novel non-linearity optical material of superior performance.
Summary of the invention
The objective of the invention is to prepare a kind of non-linear optical crystal tetrahydrate pentaborate potassium aluminate.
We select aluminium isopropoxide (Al (i-PrO)
3), four water dipotassium tetraborate (K
2B
4O
74H
2O), make raw material, its mol ratio is 1: 2, adopts water and pyridine or N, and dinethylformamide (DMF) is made mixed solvent, the AlO that utilizes aluminium isopropoxide to be hydrolyzed into
4Tetrahedron group is worked in coordination with assembling with gathering the non-the heart-yin ion cluster of borate, and makes counter ion counterionsl gegenions with potassium ion, under water (agent) heat condition, obtains the crystalline material of four hydrations, five aluminium borate potassium.
We record the mono-crystalline structures of this compound, and its structural parameters are following:
Chemical formula is K
2Al [B
5O
10] 4H
2O, molecular weight are 391.29, belong to orthorhombic system, space group C222
1, cell parameter is a=9.340 (3), b=10.308 (3),
α=β=γ=90 °,
Z=4.
The structure of four hydrations, five aluminium borate potassium is by AlO
4Tetrahedron and B
5O
10Bunch alternately be connected to three-dimensional spacious skeleton structure through summit altogether.[100], [010] and [001] direction in this structure have 8 yuan of ring foraminous spiral tracts, and direction has 11 membered ring channels in [110] and [110], and potassium ion is filled in 11 membered ring channels with free hydrone.
The nonlinear optics measurement shows that four hydrations, five aluminium borate potassium have good non-linear optical property, the very strong 532nm green glow of output under the 1064nm laser radiation, and its powder SHG coefficient is 2 times of KDP, and is suitable with LBO.
Four hydrations, five aluminium borate potassium provided by the invention are the crystal that grow at water (agent) process for thermosynthesizing.The material preparation method that the present invention adopted has that technology is simple, productive rate is high and advantage such as good reproducibility.The advantage of this material be not soluble in general solvent, light absorption is low, transparency range is big
The prepared nonlinear optical material of this invention can be applicable to laser frequency conversion, electrooptical modulation, light and sells off high-tech areas such as information processing.
Embodiment
1, the preparation of compound
Instance 1: Al (i-PrO)
3(204mg) and K
2B
4O
74H
2The potpourri of O (611mg) joins 1.0mL water (H is housed
2O) and in the teflon agitated reactor of 3.0mL pyridine (pyridine) mixed solution, use magnetic stirrer.After the question response thing dissolves fully, stop to stir, make Al in the agitated reactor (i-PrO)
3/ K
2B
4O
74H
2O/pyridine/H
2The mol ratio of O is 1/2/37/56, and packing the teflon agitated reactor into then seals in the stainless steel high-pressure reactor, 170 ℃ down reaction obtained water white prism-shaped crystal in 7 days.
Instance 2: Al (i-PrO)
3(204mg) and K
2B
4O
74H
2The potpourri of O (611mg) joins 1.0mL water (H is housed
2O) and in the teflon agitated reactor of 5.0mL dimethyl formamide (DMF) mixed solution, use magnetic stirrer.After the question response thing dissolves fully, stop to stir, make Al in the agitated reactor (i-PrO)
3/ K
2B
4O
74H
2O/DMF/H
2The mol ratio of O is 1/2/65/56, and packing the teflon agitated reactor into then seals in the stainless steel high-pressure reactor, 170 ℃ down reaction obtained water white prism-shaped crystal in 7 days.
2, performance test
We carry out optical performance test to four hydrations, the five aluminium borate potassium that obtain, and its second order nonlinear optical effect is about 2 times of KDP.
Claims (1)
1. non-linear optical crystal tetrahydrate pentaborate potassium aluminate, it is characterized in that: its chemical formula is K
2Al [B
5O
10] 4H
2O, molecular weight is: 391.29, belong to orthorhombic system, space group C222
1No.20, cell parameter are a=9.340 (3), b=10.308 (3),
α=β=γ=90 °,
Z=4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810071331A CN101619489B (en) | 2008-07-03 | 2008-07-03 | Non-linear optical crystal tetrahydrate pentaborate potassium aluminate, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810071331A CN101619489B (en) | 2008-07-03 | 2008-07-03 | Non-linear optical crystal tetrahydrate pentaborate potassium aluminate, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619489A CN101619489A (en) | 2010-01-06 |
| CN101619489B true CN101619489B (en) | 2012-08-29 |
Family
ID=41512895
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|---|---|---|---|
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102191547A (en) * | 2010-03-02 | 2011-09-21 | 中国科学院福建物质结构研究所 | Nonlinear optical crystal potassium zinc triskaideca-borate hydrate, and preparation and application thereof |
| CN104451880B (en) * | 2014-12-02 | 2017-01-18 | 中国科学院福建物质结构研究所 | Crystalline material Pb2(BO3)(NO3) as well as preparation method and application thereof |
| CN104498028B (en) * | 2014-12-11 | 2016-04-06 | 陕西师范大学 | Al 5bO 9: Eu 3+luminescent material and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148638A (en) * | 1996-07-23 | 1997-04-30 | 山东大学 | Aluminium tetraborate gadolinium crystal blended with rare earth and growth method thereof |
-
2008
- 2008-07-03 CN CN200810071331A patent/CN101619489B/en not_active Expired - Fee Related
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1148638A (en) * | 1996-07-23 | 1997-04-30 | 山东大学 | Aluminium tetraborate gadolinium crystal blended with rare earth and growth method thereof |
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