Researchers and technologists from Institute for Single Crystals solve a number of technological problems, which are the key for II-VI crystal growth from melt (e.g. ZnSe and CdZnTe) by high pressure Bridgman method. Among these problems first of all were the development of crystal growth furnace design to implement the optimal conditions of crystal growth process. Complex studies of obtained crystals were carried out and results were used to optimize the technological equipment and crystal growth technology.

In the Institute for Single Crystals growth furnaces were designed and manufactured for different crystal growth techniques based on vertical Bridgman crystal growth technology to obtain the wide set of II-VI crystal materials, including Cd_1-XZn_XTe, ZnSe, ZnS, ZnTe, CdTe, CdSe, ZnSe:Cr, Zn_1-XMg_XSe, (Zn_1-XMg_XSe):Cr, etc.


   

The application in the construction of the plants of two independent heaters significantly improved the crystallinity and purity of the obtained crystals due to levelling of the crystallization front, as well as useful increase the yield of the material.

Zn isoconcentrates (conform to the shape of the crystallization front) in crystals Cd_1-XZn_XTe, grown under different thermal conditions. The number beside each curve indicates the value of x in a percentage.