White Light Emission from Fluorescent SiC with Porous Surface.

We report for the first time a NUV light to white light conversion in a N-B co-doped 6H-SiC (fluorescent SiC) layer containing a hybrid structure. The surface of fluorescent SiC sample contains porous structures fabricated by anodic oxidation method. After passivation by 20 nm thick AlO, the photoluminescence intensity from the porous layer was significant enhanced by a factor of more than 12.