CN101619491B - Frroelectric material boron potassium ermanate, preparation method and application thereof - Google Patents
Frroelectric material boron potassium ermanate, preparation method and application thereof Download PDFInfo
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- CN101619491B CN101619491B CN 200810071333 CN200810071333A CN101619491B CN 101619491 B CN101619491 B CN 101619491B CN 200810071333 CN200810071333 CN 200810071333 CN 200810071333 A CN200810071333 A CN 200810071333A CN 101619491 B CN101619491 B CN 101619491B
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Abstract
The invention relates to a frroelectric material boron potassium germanate, a preparation method and application thereof. The boron potassium germinate has a chemical formula of K2B2Ge3O10; and the chemical formula has molecular of 477.65, belongs to a monoclinic system with a space group of C2, single cell parameters: a is equal to 15.884 (4), b is equal to 6.1758(9), c is equal to 11.906(5), alpha and gamma are equal to 90 degrees, beta is 131.237(6) degrees, V is equal to 878.3(4), and Z is equal to 4. The boron potassium germinate has good frroelectric property, can be used for manufacturing secondary harmonic generators, upper-lower frequency converters, optical parametric oscillators, coders for storing and restoring information, transmitting light information, displaying images and performing holography, and frroelectric light valve arrays for storing the holography.
Description
Technical field
The present invention relates to a kind of Frroelectric material boron potassium ermanate compound (molecular formula: K
2B
2Ge
3O
10) preparation and application.
Background technology
Ferroelectric material is a kind of multifunctional material that has simultaneously the performances such as ferroelectric, piezoelectricity, pyroelectricity, electric light.So-called ferroelectric material refers to that crystalline structure just has the spontaneous polarization phenomenon when not adding external electric field, the material that the direction of its spontaneous polarization can be reversed or redirect by extra electric field.This specific character of material is called as " ferroelectricity " or " ferroelectric effect ".In the last few years, the ferroelectric material development is very rapid, electronic technology, laser technology, infrared detection technique, ultrasonic (and microwave acoustics) technology, Solid State memory and technique of display and Other Engineering technical elements have been widely used in, and the ferroelectric material of research and production excellent property is again the basis of the functional devices such as various ferroelectric, the piezoelectricity of development, thermoelectricity and electric light.Therefore, very active to development and the exploration of ferroelectric material in the world at present.
People mainly concentrate on the dense phase inorganic materials research and the application of ferroelectric material at present.In recent years, spacious skeleton borogermanates compound with ferroelectric effect has caused people's very big research interest, this is because this compounds synthesizes the spacious degree that can meticulously regulate and control skeleton through template, have simultaneously catalysis, absorption, separation, second nonlinear optic and ferroelectric property etc., can realize having the multifunctional and composite type material of poromerics character and ferroelectric property.
Summary of the invention
Purpose of the present invention just is synthetic a kind of Frroelectric material boron potassium ermanate (molecular formula: K
2B
2Ge
3O
10), its technical scheme is as follows:
We select the germanium oxide (GeO of germanium
2), potassium tetraborate (K
2B
4O
72H
2O) as raw material, its mol ratio is 1-1.73: 1.04-1.11, adopts water, ethylene glycol and Putriscine are as the solvent mixture, under water (agent) thermal rection condition, germanium dioxide and potassium tetraborate direct reaction, the monocrystalline of the boron germanic acid potassium compound of having grown.
We record the crystalline structure of this boron germanic acid potassium compound, are piled into the three-dimensional spacious skeleton structure of a novelty by the chain of one dimension, and structural parameter are as follows:
Molecular formula is K
2B
2Ge
3O
10, molecular weight is 477.65, oblique system, and spacer is C2, cell parameter is
α=γ=90 °, β=131.237 (6) °,
Z=4.
The boron germanic acid potassium compound that germanium dioxide provided by the invention and potassium tetraborate form is the crystal that grows in next step synthetic method of water (agent) heat condition.Material preparation process of the present invention is simple, productive rate is high and the advantage such as good reproducibility.
This borogermanates compound may be a kind of novel ferroelectric crystal material, the advantage of this material be not soluble in general solvent, heat decomposition temperature high (can be stabilized to 500 ℃ in the air atmosphere), of light color, photoabsorption is low, transparency range is large.
The prepared ferroelectric crystal material of this invention can be applicable to make second harmonic generator, upper and lower frequency converter, the device for non-linear optical such as optical parametric oscillator and be used for storage and recovery information, transmission light information, image show and the pagination device of holographic, ferroelectric light valve array are done the storage etc. of holographic.
Embodiment
1, the preparation of compound
With 1.0 * 10
-3-1.73 * 10
-3Mol GeO
2Join 2.71 * 10
-2Mol ethylene glycol, 9.07 * 10
-3The mol Putriscine, 5.56 * 10
-2In the solvent mixture of mol water, add again 1.04 * 10 under the violent stirring
-3-1.11 * 10
-3The K of g
2B
4O
72H
2O, the mol ratio of mixture is GeO
2: Putriscine: K
2B
4O
72H
2O: H
2O: ethylene glycol=1-1.73: 9.07: 1.04-1.11: 55.56: 27.10.Continue to stir and to enclose after 2 hours in the 30ml reactor, 180 ℃ of reactions 7 days, naturally cooling under the room temperature, filter, after the washing in air airing, obtain white crystal.Analyze through X-ray single crystal diffraction, determine that this crystal is K
2B
2Ge
3O
10
2, performance test
We carry out the ferroelectric properties test to the boron germanic acid potassium compound that obtains.The polarizability P of this compound shows to have obvious ferroelectric effect with the relation curve of executing electric field strength E outward.
Claims (1)
1. Frroelectric material boron potassium ermanate, it is characterized in that: this material molecule formula is K
2B
2Ge
3O
10, molecular weight is 477.65, oblique system, and spacer is C2, cell parameter is
α=γ=90 °, β=131.237 (6) °,
Z=4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810071333 CN101619491B (en) | 2008-07-03 | 2008-07-03 | Frroelectric material boron potassium ermanate, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200810071333 CN101619491B (en) | 2008-07-03 | 2008-07-03 | Frroelectric material boron potassium ermanate, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101619491A CN101619491A (en) | 2010-01-06 |
| CN101619491B true CN101619491B (en) | 2013-03-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200810071333 Expired - Fee Related CN101619491B (en) | 2008-07-03 | 2008-07-03 | Frroelectric material boron potassium ermanate, preparation method and application thereof |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102534784B (en) * | 2010-12-16 | 2015-07-15 | 中国科学院福建物质结构研究所 | Nonlinear optical crystal Rb4Ge3B6O17 |
| CN110029397B (en) * | 2019-05-22 | 2021-01-01 | 天津理工大学 | Compound lithium cesium germanate and lithium cesium germanate nonlinear optical crystal as well as preparation method and application thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100517A (en) * | 1986-03-05 | 1987-09-16 | 中国科学院上海硅酸盐研究所 | The surface polishing technique of bismuth germanium oxide (BGO) monocrystalline |
| CN1364737A (en) * | 2001-01-09 | 2002-08-21 | 中国科学院长春光学精密机械与物理研究所 | Rare earth doped germanate glass and its preparing method |
| CN101070616A (en) * | 2007-06-06 | 2007-11-14 | 中国科学院安徽光学精密机械研究所 | Yb-doped gadolinium germanate, lanthanum germanate and its melt-method growth process |
| CN101121574A (en) * | 2007-07-24 | 2008-02-13 | 宁波大学 | Thulium adulterated germanate laser glass and preparation method thereof |
-
2008
- 2008-07-03 CN CN 200810071333 patent/CN101619491B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86100517A (en) * | 1986-03-05 | 1987-09-16 | 中国科学院上海硅酸盐研究所 | The surface polishing technique of bismuth germanium oxide (BGO) monocrystalline |
| CN1364737A (en) * | 2001-01-09 | 2002-08-21 | 中国科学院长春光学精密机械与物理研究所 | Rare earth doped germanate glass and its preparing method |
| CN101070616A (en) * | 2007-06-06 | 2007-11-14 | 中国科学院安徽光学精密机械研究所 | Yb-doped gadolinium germanate, lanthanum germanate and its melt-method growth process |
| CN101121574A (en) * | 2007-07-24 | 2008-02-13 | 宁波大学 | Thulium adulterated germanate laser glass and preparation method thereof |
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| CN101619491A (en) | 2010-01-06 |
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