The invention is a procedure for making photodetectors using compound semiconductors formed on {HEAD ~ substrates} containing {TAIL ~ phosphorus} 
containing
The invention is a procedure for making photodetectors using compound semiconductors formed on { HEAD ~ substrates } containing { TAIL ~ phosphorus }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL