Synthesis and electroluminescent properties of diphenyl benzeneamine derivatives as dopant material

Synthesis and electroluminescent properties of diphenyl benzeneamine derivatives as dopant material

We report the photo- (PL) and electroluminescence (EL) properties of new conjugated compounds based on diphenyl benzeneamine moiety, 4,4′-[1,4-phenylenedi-(1E)-2,1-ethenediyl]bis[ N, N-diphenyl-benzenamine](PEDB) and 4,4′-([1,1′-biphenyl]-4,4′-diyldi-2,1-ethenediyl)bis[ N, N-diphenyl-benzenamine](BP...

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Veröffentlicht in:Materials Science & Engineering C 2004-01, Vol.24 (1), p.103-106
Hauptverfasser: Park, Jong-Wook, Lee, Seung-Eun, Park, Ho-Cheol, Chung, Taek-Gyun, Seo, Hyeon-Jin
Format: Artikel
Sprache:eng
Schlagworte:
Blue emission
Dopant
Electroluminescence
Electron emission measurements
Photoluminescence
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Zusammenfassung:We report the photo- (PL) and electroluminescence (EL) properties of new conjugated compounds based on diphenyl benzeneamine moiety, 4,4′-[1,4-phenylenedi-(1E)-2,1-ethenediyl]bis[ N, N-diphenyl-benzenamine](PEDB) and 4,4′-([1,1′-biphenyl]-4,4′-diyldi-2,1-ethenediyl)bis[ N, N-diphenyl-benzenamine](BPEDB), as emitting materials and dopant materials. The ITO/m-MTDATA/NPB/DPVBi+BPEDB(1%)/Alq3/LiF/Al device shows blue EL spectrum at 458 nm and high efficiency(5.3 cd/A). PEDB as dopant shows also blue EL spectrum around λmax=463 nm and 4.1 cd/A high efficiency in ITO/m-MTDATA/NPB/DPVBi+ PEDB(1%)/Alq3/LiF/Al device.
ISSN:0928-4931
1873-0191
DOI:10.1016/j.msec.2003.09.033