A bulk GaN layer is grown on the transitional layer by {HEAD ~ HVPE} under {TAIL ~ the substantially 2D growth mode} 
A bulk GaN layer is grown on the transitional layer by { HEAD ~ HVPE } under { TAIL ~ the substantially 2D growth mode }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL