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Electroluminescence (EL) and photoluminescence (PL) imaging techniques were successfully used to reveal defect features in 34 carrots in 4H-SiC epilayers. Because EL and PL techniques are nondestructive and require minimal sample preparations, many carrots can be examined over a reasonable time. Our findings showed that some carrots had the basic components consistent with the model proposed by Benamara...
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