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Organic metal borate of ferroelectric material and preparation method and application thereof

A technology of organometallic and ferroelectric materials, applied in the direction of nickel organic compounds, etc., can solve the problems of low ferroelectric coupling coefficient, small relative permittivity, poor long-term stability of performance, etc., achieve high yield, simple preparation process, repeatable good sex effect

Inactive Publication Date: 2013-11-06
GUANGDONG UNIV OF TECH
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Problems solved by technology

However, due to the low ferroelectric coupling coefficient and relatively small relative permittivity of organic ferroelectric materials, the long-term stability of performance and function is relatively poor, which greatly restricts its application.

Method used

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Experimental program
Comparison scheme
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Embodiment Construction

[0011] 1. Preparation of the compound

[0012] Weigh nickel chloride (NiCl 2 ) 0.36g, boric acid (H 3 BO 3 ) 2.74g, measure diethylene triamine (C 4 H 13 N 3 )2.0ml, pyridine (C 5 H 5 N)8.0ml, water (H 2 O) 1.0ml as raw material, the molar ratio of which is 1:27:25:137:17, stir for 5min, put it into a closed 28mL reaction kettle, heat up to 200℃, keep constant temperature for 2 days, take it out and leave it at room temperature naturally After cooling, crystals can be obtained. After X-ray single crystal diffraction analysis, it is determined that the crystal is [Ni(C 4 H 10 N 2 )(C 2 H 8 N 2 ) 2 ][B 5 O 6 (OH) 4 ] 2 .

[0013] 2. Performance test

[0014] We conducted research on the obtained organometallic borate and found that the relationship curve between the polarization intensity P of the complex and the applied electric field intensity E shows that it has a significant ferroelectric effect, Pr=0.075μC / cm 2 , Ps=0.01μC / cm 2 .

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Abstract

The invention discloses organic metal borate of a ferroelectric material and a preparation method and applications thereof. The molecular formula of borate is C8H34B10N6NiO20, the space group is C2(No.5), and the unit cell parameter is indicated as follows: a=14.4598(17) angstroms, b=11.7213(17) angstroms, c=8.5302(14) angstroms, alpha=gama=90.0 degrees, belta=96.875 (10) degrees, Z=2 and unit cell volume V=1445.6(4) angstroms<3>; the ferroelectric material is prepared under the hydrothermal condition by in situ synthesis; reagents of nickel dichloride (NiCl2), boracic acid (H3BO3) and diethylenetriamine (C4H13N3) serve as raw materials, and water and pyridine are used as solvents; the ferroelectric material is applied to a pagination unit for storing and recovering information, transmitting optical information, displaying image and holography and is applied to storing holography of a ferroelectric light valve array.

Description

Technical field [0001] The invention relates to a ferroelectric material organometallic borate and its preparation method and application. Background technique [0002] Ferroelectric material is a kind of multifunctional material with ferroelectric, piezoelectric, pyroelectric, electro-optical, and nonlinear optical properties at the same time. The so-called ferroelectric material refers to a material whose crystal structure has spontaneous polarization when no external electric field is applied, and the direction of its spontaneous polarization can be reversed or redirected by the external electric field. This property of materials is called "ferroelectric phenomenon" or "ferroelectric effect". In recent years, the development of ferroelectric materials has been extremely rapid, and they have been widely used in electronic technology, laser technology, infrared detection technology, ultrasonic (and microwave acoustics) technology, solid-state memory and display technology, and ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C07F15/04
Inventor 潘春阳赵丰华李大光欧阳萍
Owner GUANGDONG UNIV OF TECH
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