Copper o-phenanthroline m-hydroxybenzoate ferroelectric functional material and preparation method thereof

A technology of porphyrin m-hydroxybenzoic acid and electrical function, which is applied in the direction of copper organic compounds, can solve the problems of limited research work, and achieve the effects of low raw material cost, simple and easy process, and high yield
CN103254218BInactive Publication Date: 2015-09-30NINGBO UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO UNIV
Publication Date
2015-09-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses an o-phenanthroline m-hydroxybenzoic acid copper ferroelectric function material and a preparation method thereof. The molecular formula of the o-phenanthroline m-hydroxybenzoic acid copper ferroelectric function material is Cu2(C12H8N2)2Cl2(C7H5O3)2. The ferroelectric function material is dark blue powder with the purity being not less than 99% and has a C2v point group structure. The ferroelectric characteristic parameters are respectively as follows: the remanent polarization 2Pr equals to 0.08muC*cm<-2>, the coercive electric field 2Ec equals to 5.03kv*cm<-1>; and the saturated polarization Ps equals to 0.195muC*cm<-2>. The ferroelectric function material has good ferroelectric characteristics. According to the ferroelectric function material, m-hydroxybenzoic acid solution and copper chloride solution are stirred for reacting, and then o-phenanthroline solution is added to realize nucleation and growth of o-phenanthroline m-hydroxybenzoic acid copper. The o-phenanthroline m-hydroxybenzoic acid copper ferroelectric function material is simple and practicable in process, low in facility request, low in raw material cost, high in productivity, less in pollution and the like.
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Description

technical field

[0001] The invention relates to a ferroelectric functional material, in particular to a copper o-phenanthroline m-hydroxybenzoate ferroelectric functional material and a preparation method thereof. Background technique

[0002] Ferroelectric functional materials (ferroelectrics) refer to a class of functional materials whose crystal structure has spontaneous polarization when no external electric field is applied, and the direction of spontaneous polarization can be reversed or reoriented by an external electric field. Its most basic characteristic is that it will have spontaneous polarization within a certain temperature range, and the polarization intensity can be reversed with the external electric field, so that an electric hysteresis loop appears. Ferroelectric materials have rich physical connotations. In addition to ferroelectricity, they also have piezoelectricity, dielectricity, pyroelectricity, acousto-optic effect, photoelectric effect, photorefrac...

Claims

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