Description the scheme of MME , SEM images of the AlN nanoprisms grown on the bare µ-PSS and AlN/µ-PSS nucleation layer, a magnified AFM image of the central part of an AlN microrod, TEM image of an unetched AlN nanoprism, SEM images of AlN nanoprism and microrod etched with KOH, SEM images of AlN nanoprisms grown at 850{degree sign}C, TEM image of an AlN nanoprism with a single threading dislocation, and large-area micro-Raman maps of AlN nanoprisms and microrods.