Modification of SiC based nanorods via a hydrogenated annealing process

We present a novel and simple method to modify silicon carbide nanorods coated in quartz by annealing in an ammonia atmosphere. The process allows the coaxial nanorod to be restructured such that the core becomes quartz with a thick silicon carbide sheath. The nanorods were analysed using bulk sensitive EELS and Raman spectroscopy and on a local scale using TEM imaging and spectroscopy.