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Si1-xCx/Si(001) Heterostructures for Use in Schottky Diode Rectifiers Demonstrating High Breakdown Voltage and Negligible Leakage Current
Abstract:
Vertical Schottky diodes have been fabricated on low C content Si1-xCx and 3C-SiC epilayers epitaxially grown on Si(001) substrates. Significant leakage current was observed in 3C-SiC diodes under reverse bias, masking any rectifying behavior. This issue is far less pronounced in Si1-xCx based Schottky diodes which demonstrate a clear critical breakdown. Leakage current is shown to be greater in relaxed Si1-xCx layers. While crystalline Si1-xCx is not currently a viable material for high power electronics it is useful for assessing the impact lattice mismatch and crystalline quality has on the behavior of rectifiers.
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Pages:
571-574
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Online since:
June 2015
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