Thin Solid Films, Vol.476, No.1, 206-209, 2005
Crystal quality of a 6H-SiC layer grown over macrodefects by liquid-phase epitaxy: a Raman spectroscopic study
Liquid-phase epitaxial (LPE) growth, on silicon carbide. simultaneously covers macroscale defects, e.g., micropipes, and improves the quality of the crystal. In this study, an epi-layer grown over a macrodefect was evaluated by micro-Raman scattering spectroscopy. Before the growth process, the density of the stacking fault was high and the carrier density spatially inhomogeneous in the vicinity of the macrodefects. On the other hand, after growth, the layer over the macrodefect displayed good quality; the density of the stacking fault was less than that before growth and the homogeneity of the carrier density improved. (c) 2004 Elsevier B.V. All rights reserved.