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Yttrium strontium phosphate crystal as well as preparation method and application thereof

A technology of yttrium strontium phosphate and yttrium phosphate is applied in the field of photoelectric functional crystal growth and application, and can solve problems such as no research reports.

Active Publication Date: 2019-08-02
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] So far, there is no research report on yttrium strontium phosphate crystals

Method used

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  • Yttrium strontium phosphate crystal as well as preparation method and application thereof
  • Yttrium strontium phosphate crystal as well as preparation method and application thereof
  • Yttrium strontium phosphate crystal as well as preparation method and application thereof

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Embodiment Construction

[0014] The technical scheme of the present invention is as follows:

[0015] A kind of yttrium strontium phosphate crystal, chemical formula is Sr 3 Y(PO 4 ) 3 , The crystal is a non-centrosymmetric structure, belongs to the cubic crystal system -43m point group, the unit cell parameter is The crystal has no phase change from room temperature to melting point.

[0016] Further, the melting point of the yttrium strontium phosphate crystal is basically 1850°C, and there is no phase change from room temperature to the melting point.

[0017] Furthermore, for the yttrium strontium phosphate crystal, spectral analysis measured that the crystal has> High optical transmittance of 80%.

[0018] Furthermore, for the yttrium strontium phosphate crystal, use d 33 The piezoelectric tester measured the effective piezoelectric constant of the crystal as d eff = 1pC / N-5pC / N.

[0019] Furthermore, for the yttrium strontium phosphate crystal, the effective electromechanical coupling coefficient of the ...

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Abstract

The invention relates to an yttrium strontium phosphate crystal as well as a preparation method and an application thereof. The chemical formula of the yttrium strontium phosphate crystal is Sr3Y(PO4)3, and the crystal is of an asymmetric structure and belongs to a cubic crystal system-43 m point group. The preparation method of the yttrium strontium phosphate crystal comprises the following steps: strontium yttrium phosphate polycrystalline materials are synthesized, and a homogeneously melted solution of yttrium strontium phosphate is obtained after heating and melting; an iridium bar or anyttrium strontium phosphate crystal is used as a seed crystal, so that the bottom end of the seed crystal is in close contact with the homogeneously melted solution of yttrium strontium phosphate; anda czochralski method is used for single crystal growth, and the temperature of the single crystal growth is 1700-1850 DEG C. The melting point of the yttrium strontium phosphate crystal is higher than 1800 DEG C, no phase transition from room temperature to the melting point exists, the chemical properties are stable, and no deliquescence exists, so that the yttrium strontium phosphate has significant application advantages in the high temperature piezoelectric and wide temperature nonlinear optical fields.

Description

Technical field [0001] The invention relates to a yttrium strontium phosphate crystal and a preparation method and application thereof, and belongs to the technical field of photoelectric functional crystal growth and application. Background technique [0002] As a key material in high-tech fields such as microelectronics, optoelectronics, communications, aerospace and modern military technology, optoelectronic functional crystal materials are valued by countries all over the world. The development of laser and optoelectronics has further promoted the development and application of functional crystals. The research and application of my country's optoelectronic functional crystals are at the forefront of the world, especially the research of inorganic nonlinear optical crystals is at the international leading position. However, currently available optoelectronic functional crystal materials are limited, and there is an urgent need to explore new functional crystal materials to d...

Claims

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Application Information

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IPC IPC(8): C30B29/14C30B15/00G02F1/355H01S3/16
CPCC30B29/14C30B15/00G02F1/3551H01S3/163
Inventor 于法鹏武广达李芳林樊梦迪李妍璐程秀凤赵显
Owner SHANDONG UNIV
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