| abstract |
A charge transport material containing a fluorine atom, a charge transport material containing no fluorine atom, a dopant material comprising a heteropolyacid, and an organic solvent, wherein the charge transport material containing a fluorine atom is a triarylamine It is a polymer having a weight average molecular weight of 1,000 to 200,000 obtained by condensing a compound, an arylaldehyde compound containing a fluorine atom, and a fluorene derivative having a carbonyl group, and has a charge transporting property containing no fluorine atom The charge transporting varnish whose material is an oligoaniline compound can realize an organic EL device having excellent luminance characteristics and durability even when it is used as a single layer between the anode and the light emitting layer in contact with them. To provide a charge transporting varnish that provides a thin film. |