Organic electroluminescent element

An organic electroluminescent element comprising:

• a pair of electrodes comprising a positive electrode and a negative electrode;
• and a light emitting layer disposed between the pair of electrodes, wherein
• the light emitting layer comprises, as a dopant, at least two polycyclic aromatic compounds and/or multimers selected from the group consisting of a polycyclic aromatic compound represented by the following formula (1) and a multimer of a polycyclic aromatic compound having a plurality of structures each represented by the following formula (1),
• wherein:
• ring A, ring B, and ring C each independently represent an aryl ring or a heteroaryl ring, and at least one hydrogen atom in these rings may be substituted,
• X1 and X2 each independently represent >O, >N—R, >S, >Se, or >C(—Ra)2, R of the >N—R represents an optionally substituted aryl, an optionally substituted heteroaryl or an optionally substituted alkyl, R of the >N—R may be bonded to the ring A, ring B, and/or ring C with a linking group or a single bond, and Ra of the >C(—Ra)2 represents a linear or branched alkyl starting from a methylene group, represented by formula —CH2—Cn-1H2(n-1)+1 wherein n is 1 or more, and
• at least one hydrogen atom in the compound represented by formula (1) or the multimer of the compound having the plurality of structures each represented by formula (1) may be substituted by a deuterium atom.