| abstract |
The charge-transporting material comprising an arylamine derivative represented by the formula (1) shows good solubility in an organic solvent. When a thin film prepared from a charge-transporting varnish containing the charge-transporting material is applied to a hole-injecting layer, Can be realized. Wherein Ar 1 represents a phenyl group or the like, n represents an integer of 1 to 3, and X represents a group represented by the formula (2a) or (2b): wherein R 1 to R 8 are independently of each other a hydrogen atom, Represents a divalent organic group to be represented. (Wherein R 9 and R 10 are independently of each other an alkyl group having 1 to 20 carbon atoms and the like, R 11 and R 12 are each independently a hydrogen atom or a fluorine atom, and R 13 to R 20 are , Independently of each other, represent a hydrogen atom or the like, and m represents an integer of 1 to 4))] |