Bridgman-stockbarger crystal growth device and application thereof

Abstract

The invention provides a Bridgman-Stockbarger crystal growth device. The Bridgman-Stockbarger crystal growth device comprises a furnace body, a crucible, a lifting unit, a heating unit, a temperature measurement unit, a temperature acquisition unit and a control unit, the lifting unit controls the crucible to lift in the furnace body; the furnace body can be oppositely opened, so that the crystal growth process can be conveniently observed at any time; the heating device is arranged in the heating furnace; the furnace body comprises a high-temperature area, a gradient area and a low-temperature area; the high-temperature area and the low-temperature area are independently controlled in temperature; the temperature measuring device detects the temperature of the crucible; the temperature acquisition unit acquires the temperature detected by the temperature measuring device; the control unit controls lifting of the lifting unit and heating of the heating unit. According to the invention, the defects of high height, heavy weight, difficult observation, difficult maintenance, difficult data acquisition and the like of the crystal furnace are overcome, the small-sized furnace body is utilized to facilitate preliminary understanding of the crystal growth condition, and the small-sized furnace body can also be used for a display experiment and occupies a small space. The experimental period is short, and data can be quickly accumulated. And small-size crystal growth can be carried out, and reference is provided for large-size crystal growth.

Description

technical field [0001] The invention relates to a multi-data acquisition small Bridgman crystal growth system, in particular, a furnace body that can be opened and closed by adopting a simplified growth furnace body and a lifting system that can be placed on a table. It is suitable for experiments that do not require high crystal size for growth, but require analysis and data acquisition of the crystal growth process. It belongs to the technical field of crystal growth. Background technique [0002] The growth methods of artificial crystals mainly include solution growth method, hydrothermal growth method, cosolvent method, pulling method, crucible descending method, etc. Among them, the pulling method and crucible descending method are the most commonly used for preparing large single crystals and single crystals of specific shapes. One of the most important and most important methods, has an unshakable dominance in the field of single crystal material growth required in m...

AI Technical Summary

Problems solved by technology

However, although the traditional crucible drop method is suitable for growing large-sized crystals, when exploring the crystal growth conditions in the early stage, the long experimental cycle is not easy to accumulate data and inconvenient to observe, which greatly affects the process of crystal material research and development and industrialization. In addition, There are also the following disadvantages:

[0004] (1) The traditional crucible lowering system requires a large-volume insulation cover due to the low insulation performance of the insulation material in order to achieve the required insulation effect, which is difficult to install and extremely inconvenient to maintain;

[0005] (2) The lifting mechanism requires a high furnace body height, and people need to climb to a high place to work during installation, which is inconvenient to operate;

[0006] (3) The growth furnace mostly adopts a fully enclosed structure, and it is not suitable to observe at a high place

[0007] (4) Data collection is difficult, and the temperature in the crucible cannot be easily monitored, which is not conducive to large data collection;

[0008] (5) The entire crucible lowering system is large in size and inconvenient to move

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