Efficient non-doped blue organic light-emitting diodes: donor–acceptor type host materials
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DOI: 10.1039/c7ra11732a
Abstract: The new blue light emitting materials, (E)-4′-(1-(4-(2-(1-(naphthalen-1-yl)-1H-phenanthro[9,10-d]imidazol-2-yl)vinyl)phenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)-N,N-diphenyl-[1,1′]-biphenyl-4-amine (NPI-PITPA), (E)-4′-(1-(4-(2-(1-(4-methylnaphthalen-1-yl)-1H-phenanthro[9,10-d]imidazol-2-yl)vinyl)phenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)-N,N-diphenyl-[1,1′]-biphenyl-4-amine (MeNPI-PITPA) and (E)-4′-(1-(4-(2-(1-(4-methoxynaphthalen-1-yl)-1H-phenanthro[9,10-d]imidazol-2-yl)vinyl)phenyl)-1H-phenanthro[9,10-d]imidazol-2-yl)-N,N-diphenyl-[1,1′]-biphenyl-4-amine (OMeNPI-PITPA) with dual charge transport properties have been synthesized and characterised. These compounds exhibit excellent thermal properties with very high glass-transition temperature and… read more here.
Keywords: imidazol; non doped; phenanthro imidazol; organic light ... See more keywords