Device for fixing seed crystal, growth device and method for rapid crystal growth

A crystal growth and rapid technology, applied in the direction of single crystal growth, single crystal growth, crystal growth, etc., can solve the problems of scrapped crystal frame, waste of materials, damaged crystal frame layer, etc., to achieve good universality without destroying stability. Effect

Active Publication Date: 2022-02-18
FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If the crystal growth fails, the solution must be returned to the batching tank. After the new seed crystal is injected, the growth solution is transferred from the batching tank to the growth tank. The process is cumbersome and wastes materials.
Removing the crystal frame after the crystal grows will destroy the crystal frame layer, and the crystal frame will be scrapped

Method used

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  • Device for fixing seed crystal, growth device and method for rapid crystal growth
  • Device for fixing seed crystal, growth device and method for rapid crystal growth
  • Device for fixing seed crystal, growth device and method for rapid crystal growth

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Such as image 3 Shown is a schematic diagram of the device for fixing the seed crystal, and the seed crystal is fixed on the upper surface of the plastic sheet. Such as Figure 4 As shown, it is a schematic diagram of a crystal growth device using a device for fixing the seed crystal. The seed crystal is fixed on the upper surface of the plastic sheet to form a device for fixing the seed crystal, which is placed in the middle of the crystal frame platform.

[0047] Such as figure 1 As shown, it is the physical picture of the device for fixing the seed crystal, in which 1 represents the seed crystal, which is a fast-growing seed crystal of 10×10×10 mm, and 2 represents a transparent plastic sheet, which is polygonal, with a friction coefficient of 0.45, a thickness of 1 mm, and a surface area of 9cm 2 , the fast-growing seed crystal 1 is glued on the plastic sheet 2 with AB glue.

[0048] Such as figure 2 As shown, it is a KDP crystal rapidly grown by a crystal gr...

Embodiment 2

[0050] The device for fixing the seed crystal in Example 1 was used to grow KDP crystals. Inject seeds into the superheated growth saturated solution in the growth tank, and use a 1.5-meter stainless steel forceps to clamp the seed crystal and place it in the center of the crystal frame platform. After the seeding is completed, the KDP crystal grows stably and rapidly at a certain degree of supersaturation. Figure 5 It is the physical picture of KDP crystal obtained from the final growth, and the size is 100×100×60mm.

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Abstract

The present application discloses a device for fixing seed crystals, a growth device, and a method for rapid crystal growth. The device for fixing seed crystals includes a wafer carrier and a crystal support platform; the wafer carrier is fixed with a seed crystal; the wafer carrier is placed On the stand platform, the crystals are grown. It is used in the seeding process of fast growing KDP crystals, which is simple and fast, does not destroy the stability of the growth solution, and can grow large-sized KDP crystals smoothly and quickly. Has good universality.

Description

technical field [0001] The application relates to a device for fixing seed crystals, a growth device and a seeding method for rapid growth of crystals, and belongs to the technical field of rapid growth of crystals in aqueous solution. Background technique [0002] Potassium dihydrogen phosphate (KDP) and potassium dideuterium phosphate (DKDP) are electro-optic and nonlinear optical crystal materials with excellent performance, and are widely used in the laser field. In recent years, with the rapid development of inertial confinement fusion (ICF), KDP-like crystals play an irreplaceable role in ICF systems due to their advantages such as the ability to grow large sizes. In the ICF project, large size KDP-like crystals are used to make Pockels cells, frequency doubling and frequency tripling components. [0003] During the rapid growth of KDP-like crystals, the seeding process is critical. In the previous seeding process, the seed crystal was placed in the groove in the cen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C30B29/22C30B7/08
CPCC30B29/22C30B7/08
Inventor 李国辉刘苾毳
Owner FUJIAN INST OF RES ON THE STRUCTURE OF MATTER CHINESE ACAD OF SCI
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