The substrate is bombarded with the ionized particles to form carbon nitrides with {HEAD ~ variable / ratios}, referred to as {TAIL ~ CNx} 
referred to as
The substrate is bombarded with the ionized particles to form carbon nitrides with { HEAD ~ variable / ratios } , referred to as { TAIL ~ CNx }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH REL REL REL TAIL TAIL TAIL TAIL TAIL