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- 1. Phys. Rev. Lett. 98, 026101 (2007) , “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,, and Sokrates T. PantelidesUnlike 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... (Read more)
- 2. Appl. Phys. Lett. 89, 222103 (2006) , “Comparison of near-interface traps in Al2O3/4H-SiC and Al2O3/SiO2/4H-SiC structures”, Marc Avice, Ulrike Grossner, Ioana Pintilie, Bengt G. Svensson, Ola Nilsen, and Helmer FjellvagAluminum oxide (Al2O3) has been grown by atomic layer deposition on n-type 4H-SiC with and without a thin silicon dioxide (SiO2) intermediate layer. By means of capacitance-voltage and thermal dielectric relaxation current measurements, the interface... (Read more)
- 3. Appl. Phys. Lett. 88, 092108 (2006) , “Hydrogen passivation of carbon Pb like centers at the 3C- and 4H-SiC/SiO2 interfaces in oxidized porous SiC”, J. L. Cantin, H. J. von Bardeleben, Yue Ke, R. P. Devaty, W. J. ChoykeThe effect of forming gas and vacuum annealing on the concentration of carbon dangling bond (PbC) centers at 3C- and 4H-SiC/SiO2 interfaces has been studied by electron paramagnetic resonance (EPR) spectroscopy. Our results show efficient passivation at 400 °C and... (Read more)
- 4. Appl. Phys. Lett. 84, 3406-3408 (2004) , “Structure of 6H silicon carbide/silicon dioxide interface trapping defects”, David J. Meyer, Nathaniel A. Bohna, and Patrick M. LenahanWe utilize spin-dependent recombination (SDR) to observe deep level trap defects at or very near the interface of 6H silicon carbide and the SiO2 gate dielectric in SiC metal-oxide-semiconductor field effect transistors. The SDR response is strongly correlated to SiC/SiO2... (Read more)
- 5. Phys. Rev. Lett. 92, 015502 (2004) , “Identification of the Carbon Dangling Bond Center at the 4H–SiC/SiO2 Interface by an EPR Study in Oxidized Porous SiC”, J. L. Cantin, H. J. von Bardeleben, Y. Shishkin, Y. Ke, R. P. Devaty, and W. J. ChoykeWe report the observation of a paramagnetic interface defect in thermally oxidized porous n-type doped 4HSiC/SiO2. Based on its axial symmetry and resolved hyperfine interactions it is attributed to an sp3 carbon dangling bond center situated... (Read more)
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Updated at 2010-07-20 16:50:39
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