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Title: Method of synthesizing and growing copper-indium-diselenide (CuInSe/sub 2/) crystals

Patent ·
OSTI ID:5414688

A process for preparing CuInSe/sub 2/ crystals includes melting a sufficient quantity of B/sub 2/O/sub 2/ along with stochiometric quantities of Cu, In, and Se in a crucible in a high-pressure atmosphere of inert gas to encapsulate the CuInSe/sub 2/ melt and confine the Se to the crucible. Additional Se in the range of 1.8 to 2.2% over the stochiometric quantity is preferred to make up for small amounts of Se lost in the process. The melt can then be cooled slowly to form the crystal as direct solidification, or the crystal can be grown by inserting a seed crystal through the B/sub 2/O/sub 3/ encapsulate into contact with the CuInSe/sub 2/ melt and withdrawing the seed upwardly to grow the crystal thereon from the melt.

Research Organization:
Solar Energy Research Inst. (SERI), Golden, CO (United States)
DOE Contract Number:
AC02-83CH10093
Assignee:
Dept. of Energy
Application Number:
ON: DE85017729
OSTI ID:
5414688
Country of Publication:
United States
Language:
English