作者: M. Lorenzoni , B. Torre
DOI: 10.1063/1.4825265
关键词: Diffusion 、 Surface diffusion 、 Analytical chemistry 、 Activation energy 、 Semiconductor 、 Optoelectronics 、 Pulse duration 、 Fabrication 、 Oxide 、 Materials science 、 Wide-bandgap semiconductor
摘要: We report the outcome of atomic force microscopy local anodic oxidation experiments on 6H-SiC in air. Oxide thickness can be easily tuned by varying applied voltage and pulse duration. The height aspect ratio single dots produced DC pulses are remarkably higher than what was reported previously, with self limiting heights exceeding 100 nm. propose that diminished density change chemical composition oxide grown SiC respect to under similar condition Si cause a drop activation energy oxanions diffusion within newly formed layer.