Bonding at the SiC-SiO2 interface and the effects of nitrogen and hydrogen

Sanwu Wang; S. Dhar; Shu Rui Wang; A. C. Ahyi; A. Franceschetti; J. R. Williams; L. C. Feldman; Sokrates T. Pantelides

doi:10.1103/PhysRevLett.98.026101

Bonding at the SiC-SiO2 interface and the effects of nitrogen and hydrogen

Sanwu Wang, S. Dhar, Shu Rui Wang, A. C. Ahyi, A. Franceschetti, J. R. Williams, L. C. Feldman, Sokrates T. Pantelides

Rutgers University

Research output: Contribution to journal › Article

163 Citations (Scopus)

Abstract

Unlike the Si-SiO2 interface, the SiC-SiO2 interface has large defect densities. Though nitridation has been shown to reduce the defect density, the effect of H remains an open issue. Here we combine experimental data and the results of first-principles calculations to demonstrate that a Si-C-O bonded interlayer with correlated threefold-coordinated C atoms accounts for the observed defect states, for passivation by N and atomic H, and for the nature of residual defects.

Original language	English
Article number	026101
Journal	Physical review letters
Volume	98
Issue number	2
DOIs	https://doi.org/10.1103/PhysRevLett.98.026101
Publication status	Published - Jan 26 2007

ASJC Scopus subject areas

Physics and Astronomy(all)

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10.1103/PhysRevLett.98.026101

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Wang, S., Dhar, S., Wang, S. R., Ahyi, A. C., Franceschetti, A., Williams, J. R., Feldman, L. C., & Pantelides, S. T. (2007). Bonding at the SiC-SiO2 interface and the effects of nitrogen and hydrogen. Physical review letters, 98(2), [026101]. https://doi.org/10.1103/PhysRevLett.98.026101

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AU - Williams, J. R.

AU - Feldman, L. C.

AU - Pantelides, Sokrates T.

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