CHARGE-TRANSPORTING VARNISH

摘要

Provided is a charge-transporting varnish which includes a charge-transporting material including fluorine atoms, a charge-transporting material not including fluorine atoms, a dopant material comprising heteropoly acid, and an organic solvent, said charge-transporting material including fluorine atoms being a polymer of weight-average 1,000 to 200,000 molecular weight obtained by condensing a triarylamine compound, an aryl aldehyde compound including fluorine atoms, and a fluorine derivative having a carbonyl group, and said charge-transporting material not including fluorine atoms being an oligoaniline compound. The charge-transporting varnish provides a thin film which, even in a case of being used as a single layer in contact with and in between an anode and a luminescent layer, is capable of achieving an organic EL element having superior luminance characteristics and durability.

主权项

1. A charge-transporting varnish characterized by comprising a charge-transporting material containing fluorine atoms, a charge-transporting material not containing fluorine atoms, a dopant material composed of a heteropolyacid, and an organic solvent,
wherein the charge-transporting material containing fluorine atoms is a polymer having a weight-average molecular weight of from 1,000 to 200,000 which is obtained by condensation of a triarylamine compound with a fluorine atom-containing arylaldehyde compound and a carbonyl group-bearing fluorene derivative, and the charge-transporting material not containing fluorine atoms is an oligoaniline compound.