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The inverted organic light-emitting diodes (IOLEDs) have been fabricated using the hybrid-p-doped hole transport layer consisting of MoO3-doped N,N′-bis-(1-naphthl)-diphenyl-1,1′-biphenyl-4,4′-diamine (NPB:MoO3) and 2,3,5,6-Tetrafluoro-7,7,8,8,-tetracyano-quinodimethane-doped NPB (NPB:F4-TCNQ). Compared with the IOLED using the 20 nm NPB:MoO3/Al, the one using the 10 nm NPB:F4-TCNQ/10 nm NPB:MoO3/Al...
The hole-injecting structure of 15 nm MoO3-doped 4,4-N,N-bis [N-1-naphthyl-N-phenyl-amino]biphenyl (NPB:MoO3)/5 nm MoO3-doped 4,4′-N,N′-dicarbazole-biphenyl (CBP:MoO3) has been used in organic light emitting diodes (OLEDs). It was found that a device using the 15 nm NPB:MoO3/5 nm CBP:MoO3/NPB combination was superior to one adopting the 20 nm NPB:MoO3/NPB combination due to two major causes: the NPB:MoO...
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