Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Multi-element crystal purification device and method

A crystal and multi-component technology, applied in the field of multi-component crystal purification devices, can solve the problems of easy decomposition of crystals, achieve the effect of ensuring crystal optics, suitable for large-scale processing, and reducing the risk of explosion

Pending Publication Date: 2022-01-21
CHINA ELECTRONICS TECH GRP NO 46 RES INST
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to solve the problem that crystals are easy to decompose during the purification process of multi-element crystals containing phosphorus, iodine, arsenic, etc., the present invention especially provides a multi-element crystal purification device and method

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Multi-element crystal purification device and method
  • Multi-element crystal purification device and method
  • Multi-element crystal purification device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] The present invention will be further described below in conjunction with drawings and embodiments.

[0030] The purification furnace in this embodiment is designed based on the traditional multi-temperature zone synthesis furnace and the traditional zone melting furnace. Compared with the traditional multi-temperature zone synthesis furnace, the furnace body of this device adopts a pressurized and airtight design, adds a pressure control device and a zone melting device, and adds frosting to the characteristics of the transmission device and the purification process and the specific position of the purification container. deal with. Compared with the traditional zone melting device, this device changes the moving object in the zone melting process, from the "moving heating resistor" of the traditional zone melting device to "fixed heating resistor moving the purification ampoule with crystals", and at the same time increases the external heating device In order to mai...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
bearing capacityaaaaaaaaaa
Login to View More

Abstract

The invention discloses a multi-element crystal purification device and method. The purification device comprises a furnace body, wherein a zone melting device and a purification ampoule are arranged in the furnace body; the furnace body consists of an inner-layer metal furnace chamber, an outer-layer heating device, an air pressure control device and a cooling device; and the zone melting device comprises an ampoule support, a resistance heating ring and a transmission device. The transmission device is composed of a guide rail, a lead screw, a rack sliding block and a reversing gear. The purification ampoule comprises a protection container, a purification container and a crucible; and the crucible comprises a purification crucible and a pressure control crucible. An outer-layer heating device is used for assisting, so that the pipe wall temperature can be maintained, the steam pressure in the pipe can be maintained, and crystal decomposition is inhibited; and a controllable pressurizing device is used for assisting, so that the internal and external pressure difference of the purification container is reduced, the container is kept stable, and the explosion risk is reduced. The method can effectively solve the problem of component decomposition during the purification process of the multi-element crystal containing volatile components, ensures the stoichiometric ratio of the crystal, reduces the generation of vacancy and displacement defects in the crystal, and ensures the optical and electrical properties of the crystal.

Description

technical field [0001] The invention relates to the purification of multiple compound crystals, in particular to a purification device and method for multiple crystals. Background technique [0002] As a physical purification method, the zone melting method is often used after chemical synthesis and chemical purification to further purify the target product. The zone melting purification method is the application of melt cooling and crystallization technology. When using it, the crystal is first melted to form a melting zone; then a temperature gradient is created to obtain a solid-liquid boundary area; separation or crystal growth. [0003] Traditional zone melting devices use high-purity nitrogen, hydrogen, argon, etc. as protective gases, but when the zone melting ingot is a compound with reversible decomposition reactions such as phosphorus germanium zinc, indium phosphide, and indium iodide, there is a difference. As a multi-component compound crystal, when the temper...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): C30B28/08C30B29/52
CPCC30B28/08C30B29/52
Inventor 李佳起王英民程红娟张嵩刘金鑫刘莎莎房诗舒
Owner CHINA ELECTRONICS TECH GRP NO 46 RES INST
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products