| 摘要 |
PROBLEM TO BE SOLVED: To provide an electroluminescent device using an organic light emitting material, capable of giving a high brightness in light emission and a new emis sion color. SOLUTION: This electroluminescent device 6 is formed with a fluorescent light emission layer 4 as an electron transport layer and a hole transport layer 3 between a pair of electrodes, i.e., a transparent anode 2 and thin film cathode 5, wherein the fluorescent light emission layer 4 is positioned between the two electrodes and contains one of alkyl, alkoxy, cyano, and halogen substitution product of polycyclic aromatic hydrocarbon. Alternatively, the fluorescent light emission layer 4 contains a porphyrin compound or its metal complex having a structure in which one of the monocyclic nitrogen-containing aromatic ring having a carbon number of five or less, halophenyl group, and cyanophenyl group is substituted in the 5, 10, 15, 20 positions of the porphyrin ring.
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