Electrical Activity of Structural Defects in 3C-SiC

Abstract:

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Defects in cubic silicon carbide (3C-SiC) epilayers, that were grown using different techniques and on different substrates, were studied in terms of electrical activity and device limiting implications. An electrical characterization by conductive atomic force microscopy (C-AFM) showed that stacking faults (SFs) are normally the predominant type of defects that are electrically active at the semiconductor surface and, therefore, the most important defects that can affect the contact properties on these epilayers. It is also shown that an ultraviolet (UV) irradiation process can be used to suppress detrimental leakage currents passing through SFs that are carbon terminated at the semiconductor surface. Indeed, current-voltage characterization of Au/3C-SiC diodes showed a subsequent improvement of the Schottky behavior.

Info:

Periodical:

Materials Science Forum (Volumes 679-680)

Edited by:

Edouard V. Monakhov, Tamás Hornos and Bengt. G. Svensson

Pages:

273-276

DOI:

10.4028/www.scientific.net/MSF.679-680.273

Citation:

J. Eriksson et al., "Electrical Activity of Structural Defects in 3C-SiC", Materials Science Forum, Vols. 679-680, pp. 273-276, 2011

Online since:

March 2011

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Price:

$35.00

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