{HEAD ~ The energy difference} between the maximum of the gain and the emission maximum decreases with {TAIL ~ decreasing size} of the nanocrystal 
decreases with
{ HEAD ~ The energy difference } between the maximum of the gain and the emission maximum decreases with { TAIL ~ decreasing size } of the nanocrystal
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH