Patent attributes
Provided is an organic electroluminescent element comprising a substrate having thereon an anode, a cathode, and a plurality of organic layers sandwiched between the anode and the cathode,wherein the plurality of organic layers comprise:a light emitting layer containing a phosphorescence emitting compound; andan electron transport layer containing a compound represented by Formula (1),(Ar1)n1−Y1 Formula (1)wherein n1 is an integer of 1 or more; Y1 is a substituent when n1 is 1, and Y1 is a single bond or a linking group of n1 valences when n1 is two or more; Ar1 is a group represented by Formula (A), a plurality of Ar1 may be the same or different with each other when n1 is two or more; and the compound represented by Formula (1) contains at least two condensed aromatic heterocyclic rings each comprising 3 or more rings condensed with each other:
