| abstract |
Disclosed is an oligoaniline compound represented by the formula (1), (2), (3) or (4) below, which exhibits high solubility in a low-polarity solvent. This oligoaniline compound is suitable as a charge-transporting material which enables to realize excellent device characteristics such as low driving voltage when applied to an OLED device.n n n n n(In the formulae, R 1 -R 20 independently represent a hydrogen atom, a halogen atom, a hydroxy group, an amino group, a silanol group, a thiol group, a carboxyl group, a sulfonic acid group, a phosphate group, a phosphoric acid ester group, an ester group, a thioester group, an amide group, a nitro group, a monovalent hydrocarbon group, an organoxy group, an organoamino group, an organosilyl group, an organothio group, an acyl group or a sulfonic group; m, n, l and k independently represent an integer respectively satisfying 1 ≤ m ≤ 20, 1 ≤ n ≤ 20, 1 ≤ l ≤ 20 and 1 ≤ k ≤ 20; and X represents a fluorinated aryl group.) |