Observation of defects in mercury cadmium telluride crystals grown by chemical vapor transport
作者:
E. A. Irene,
E. Tierney,
H. Wiedemeier,
D. Chandra,
期刊:
Applied Physics Letters
(AIP Available online 1983)
卷期:
Volume 42,
issue 8
页码: 710-712
ISSN:0003-6951
年代: 1983
DOI:10.1063/1.94034
出版商: AIP
数据来源: AIP
摘要:
A mixture of nitric and hydrochloric acids was found to yield etch pits on mercury cadmium telluride crystals grown by chemical vapor transport using iodine or mercuric iodide as the transport agent. Two types of pits were observed by optical microscopy: triangular pyramidal and round saucer shaped pits. Transmission electron microscopy confirmed that two types of defects were present: dislocations and second phase occlusions. The present study suggests that the defects are near the crystal surface and therefore will probably not significantly affect the electrical characteristics.
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