Determination of the Electrical Capture Process of the EH6-Center in n-Type 4H-SiC

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Abstract:

Deep Level Transient Spectroscopy (DLTS) investigations at different temperatures and with various filling pulse lengths were performed on n-type 4H-SiC epitaxial layers using Iridium Schottky contacts to determine the electrical capture process of the EH6-center. The temperature dependence of the electrical capture cross section σ ~ T-2.0 suggests a cascade capture process, which is not thermally activated. Together with earlier work by Zippelius et al. [4] this proves the acceptor-type of the EH6-center.

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Periodical:

Materials Science Forum (Volumes 740-742)

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377-380

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Online since:

January 2013

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