Yttrium strontium phosphate crystal and its preparation method and application

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

Active Publication Date: 2022-02-15
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 and its preparation method and application
  • Yttrium strontium phosphate crystal and its preparation method and application
  • Yttrium strontium phosphate crystal and its preparation method and application

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Embodiment Construction

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

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

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

[0017] Further, the yttrium strontium phosphate crystal has a high optical transmittance of >80% in the 480nm-4100nm band as measured by spectral analysis.

[0018] Further, the yttrium strontium phosphate crystal, with d 33 The effective piezoelectric constant of the crystal measured by the piezoelectric tester is d eff = 1pC / N - 5pC / N.

[0019] Furthermore, for the yttrium strontium phosphate crystal, the effective e...

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Abstract

The present invention relates to yttrium strontium phosphate crystal and its preparation method and application. The chemical formula of yttrium strontium phosphate crystal is Sr 3 Y(PO 4 ) 3 , the crystal has a noncentrosymmetric structure and belongs to the cubic ‑43m point group. The preparation method of the yttrium strontium phosphate crystal includes: synthesizing the yttrium strontium phosphate polycrystalline material, heating and melting to obtain a uniformly melted yttrium strontium phosphate melt; using iridium gold rod or yttrium strontium phosphate crystal as the seed crystal, making the seed crystal The bottom end is just in contact with the yttrium strontium phosphate melt, and the single crystal growth is carried out by the pulling method, and the single crystal growth temperature is 1700-1850°C. The melting point of the yttrium strontium phosphate crystal is higher than 1800°C, and there is no phase transition from room temperature to the melting point, the chemical property is stable, and it does not deliquesce, so it has obvious application advantages in the fields of high temperature piezoelectricity and wide temperature range nonlinear optics.

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] Optoelectronic functional crystal materials, as key materials in high-tech fields such as microelectronics, optoelectronics, communications, aerospace and modern military technology, 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 optoelectronic functional crystals in my country are at the forefront of the world, especially the research on inorganic nonlinear optical crystals is in the leading position in the world. However, currently available optoelectronic functional crystal materials are limited, and there is an urgent need to explore new functional crystal materials...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/355H01S3/16C30B29/14C30B15/00
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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