| abstract |
Disclosed is an organic EL device comprising an anode, a hole injection layer, a light-emitting layer, an electron transporting layer and a cathode. The hole injection layer contains a poly(alkylenedioxythiophene) and at least one fluorine-containing colloid-forming polymer acid, and the electron transporting layer contains a nitrogen-containing heterocyclic derivative represented by the following formula (1). HAr-L-Ar1-Ar2 (1) (In the formula, HAr represents a substituted or unsubstituted nitrogen-containing heterocyclic group having 3-40 carbon atoms; L represents a single bond, a substituted or unsubstituted arylene group having 6-60 carbon atoms, a substituted or unsubstituted heteroarylene group having 3-60 carbon atoms, or a substituted or unsubstituted fluorenylene group; Ar1 represents a substituted or unsubstituted divalent aromatic hydrocarbon group having 6-60 carbon atoms; and Ar2 represents a substituted or unsubstituted aryl group having 3-60 carbon atoms.) |