| 摘要 |
A fluorene derivative having a novel structure is provided to be used for forming an organic layer of an organic electronic device, thereby increasing the efficiency, lowering a driving voltage and increasing the stability of the device. A fluorene derivative is represented by the formula(1), where X is O, S, or N-R5; each R1 and R2 is independently H, C1-30 alkyl, C3-30 cycloalkyl, C5-30 aryl, C5-30 heteroaryl, or a fused ring group of an aliphatic, aromatic, aliphatic hetero or aromatic hetero, or may form a fused ring of an aliphatic, aromatic, aliphatic hetero or aromatic hetero with an adjacent group, or form a spiro bond; each R3 and R4 is independently H, C1-12 alkoxy, C1-12 alkylthioxy, C1-30 alkylamine, C5-30 arylamine, C5-30 aryl, C5-30 heteroaryl, -SiRR'R", -BRR', amino, nitrile, nitro, halogen, amide, ester, or a fused ring group of an aliphatic, aromatic, aliphatic hetero or aromatic hetero, or may form a fused ring of an aliphatic, aromatic, aliphatic hetero or aromatic hetero with an adjacent group, or form a spiro bond; m is an integer from 0 to 5, provided that at least two R4s are identical to each other or different from each other when m is more than 2; Ar1 is C5-30 arylene, C5-30 heteroarylene, or a divalent fused ring group of an aromatic or an aromatic hetero; n is 0, 1, or 2, and two Ar1s are identical or different when n is 2 heteroaryl; each R5 and Ar2 is independently C5-30 aryl, C5-30 heteroaryl, or a fused ring group of an aromatic or an aromatic hetero; l is an integer from 1 to 4 and at least two Ar2s are identical or different when l is more than 2. An organic electronic device comprises a first electrode, a second electrode, and at least one organic layer disposed between the first and second electrodes, where the at least one layer of the organic layer includes the fluorene derivative.
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