For example, the semiconductor nanocrystals may be prepared by adding a corresponding metal precursor to an organic solvent in the absence or presence of a dispersant, and {HEAD ~ growing crystals} at {TAIL ~ a predetermined temperature} 
at
For example , the semiconductor nanocrystals may be prepared by adding a corresponding metal precursor to an organic solvent in the absence or presence of a dispersant , and { HEAD ~ growing crystals } at { TAIL ~ a predetermined temperature }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL