| 摘要 |
An electroluminescent element has an anode, a cathode, and an organic layer structure between the two electrodes. The layer structure has a luminescent zone containing 1,9-perinaphtylene-10-1'-naphthylanthracene or derivatives as dopant. The luminescent material utilized as dopant has the following structure called pNNA or pNNA derivatives: Wherein: R3 R1, R2, R3, R4 are individual substituents or a group of substituents, and they may be identical or different. Each substituent is individually selected from the following groups consisting of: H, alkyl (-R), halogen (-X), aryl (-Ar), alkenyl (RCH=CH-), allyl(CH2=CHCH2-), cyano (NC-), isocyano (CN-), amino (H2N-), tertiary amino (R2N- or Ar1Ar2N-), amide (RCONR-), nitro (N2O-), acyl (RCO-), carboxyl (-CO2H), alkoxyl (RO-), alkylsulfonyl (RSO2-), hydroxy (HO-) and single or fused aromatic heterocyclic rings.
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