METHOD FOR PREPARING CRYSTALS OF CHALCOGENIDES OF AB-TYPE Russian patent published in 1995 - IPC

Abstract RU 2031983 C1

FIELD: instrument making. SUBSTANCE: origin chalcogenide is treated in atmosphere of deoxidation gas, the process is carried out at temperature being by 10-20 C higher than boling point of the metal of said chalcogenide. Gas which is prepared by interacting air, technical nitrogen and/or carbon dioxide with carbon (graphite crumb) at 850-950 C being used as mentioned above deoxidation gas. Said gas enables to remove oxygen impurities of crystallizing compound and it is available for all the compounds having formula A^IIB^VI. EFFECT: improves optical parameters of desired crystals. 4 dwg, 1 tbl

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RU 2 031 983 C1

Authors

Kobzar'-Zlenko V.A.

Ivanov N.P.

Fajner M.Sh.

Komar' V.K.

Dates

1995-03-27—Published

1991-12-27—Filed