Seed crystal growth device convenient for seed crystal transplantation

Abstract

The invention belongs to the technical field of crystal material preparation, and relates to a seed crystal growth device convenient for seed crystal transplantation, which comprises a cylinder, a lower end cover, an upper end cover, a lower partition plate, an upper partition plate, a lower cavity heat preservation and insulation layer, a lower cavity thermocouple, an upper cavity heat preservation and insulation layer, an upper cavity thermocouple, a seed crystal growth temperature control pipe, a base, a top seat, an ampoule fixing frame and a seed crystal growth ampoule. According to the invention, the prepared seed crystal is convenient to transplant and fix in the seed crystal growth ampoule for crystal material growth preparation, and meanwhile, the temperature is controlled through the seed crystal growth temperature control tube, so that the preparation of a high-performance tellurium-zinc-cadmium crystal material is facilitated, and the seed crystal with better quality is grown.

Description

technical field [0001] The invention belongs to the technical field of crystal material preparation, and in particular relates to a seed crystal growth device which facilitates seed crystal transplantation. Background technique [0002] When preparing single crystal materials such as cadmium zinc telluride, the raw materials need to be packaged in crystal material growth quartz ampoules after the raw materials are purified, shaken and mixed, and good quality seed crystals and seed crystals need to be fixed at the bottom of the inner cavity of the quartz ampoules. As the "seed" of crystal material growth, it is used to promote and guide the growth of crystal material, and plays an important role in the quality of the grown crystal material. [0003] The existing technology is to bond the seed crystal to the bottom of the inner cavity of the quartz ampoule, fill the bottom with raw materials such as cadmium zinc telluride after purification, rocking and mixing, etc., vacuumize...

AI Technical Summary

Problems solved by technology

In this process, since the seed crystal and quartz are two materials with different melting temperatures, the seed crystal is made of ready-made crystal material, processed into smaller granules in advance, and then transplanted to the bottom of the inner cavity of the quartz ampoule for bonding. Adhesive fixation technology is relatively difficult, and the processing process is likely to cause seed crystal fragmentation or contamination. A slight deviation will cause the seed crystal to fall off or dissociate into the crystal material growth solution, seriously affecting the quality of crystal material preparation, and it is difficult to find out in time

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