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1. (WO2013159689) METHOD FOR PREPARING CADMIUM TELLURIDE

Pub. No.:    WO/2013/159689    International Application No.:    PCT/CN2013/074533
Publication Date: Fri Nov 01 00:59:59 CET 2013 International Filing Date: Tue Apr 23 01:59:59 CEST 2013
IPC: C01B 19/04
C01G 11/00
Applicants: FIRST RARE MATERIALS CO., LTD.
广东先导稀材股份有限公司
Inventors: ZHU, Liu
朱刘
HU, Zhixiang
胡智向
Title: METHOD FOR PREPARING CADMIUM TELLURIDE
Abstract:
The present invention provides a method for preparing cadmium telluride, comprising steps of: mixing cadmium and tellurium according to a specified mole ratio, telluride being excess relative to cadmium; putting the mixture of cadmium and tellurium into a graphite barrel; putting the graphite barrel into a quartz tube; putting the quartz tube into a bomb furnace, and vacuumizing and sealing the quartz tube; putting the sealed quartz tube into a vertical gradient solidification furnace, and performing heating and heat preservation in a multistage manner, so that cadmium and tellurium are subjected to a synthetic reaction; and after the quartz tube cools to the room temperature along with the furnace, opening the quartz tube, and taking cadmium tellurium obtained from the reaction out of the quartz tube. In the method for preparing cadmium telluride provided in the present invention, the graphite barrel and the quartz tube are vacuumized and sealed, so that the heating temperature is uniform when cadmium tellurium is synthesized, and the reaction is fully performed. The method is friendly to operating personnel and the environment.