Photoluminescence study of oxidation-induced faults in 4H-SiC epilayers

Autor: Yutaro Miyano, Ryosuke Asafuji, Shuhei Yagi, Yasuto Hijikata, Hiroyuki Yaguchi
Jazyk: angličtina
Rok vydání: 2015
Předmět:
Zdroj: AIP Advances, Vol 5, Iss 12, Pp 127116-127116-6 (2015)
Druh dokumentu: article
ISSN: 2158-3226
DOI: 10.1063/1.4938126
Popis: We investigated the effect of thermal oxidation on crystalline faults in 4H-SiC epilayers using photoluminescence imaging. We found that a comb-shaped dislocation array was deformed by thermal oxidation. We also found that line-shaped faults perpendicular to the off-cut direction were formed during oxidation and were stretched and increased with the oxidation time. Since these line-shaped faults were peculiar to the oxidation and stretched/increased with the oxide growth, they were identified as oxidation-induced stacking faults as seen in Si oxidation.
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