Further, the possibility of crystallizing the EL material through {HEAD ~ evaporation} of solvent becomes high when much impurities that can be a crystalline nucleus exist in {TAIL ~ the EL forming substance} 112 
Further , the possibility of crystallizing the EL material through { HEAD ~ evaporation } of solvent becomes high when much impurities that can be a crystalline nucleus exist in { TAIL ~ the EL forming substance } 112
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH