| abstract |
An organic electroluminescence device includes a pair of electrodes and an organic compound layer therebetween. The organic compound layer includes an emitting layer. The emitting layer includes a pyrene derivative represented by formula (1), such that a content of the pyrene derivative in the emitting layer is 50 to 100 wt %. Ar 1 and Ar 2 are independently a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms. X 1 and X 3 to X 8 are a hydrogen atom. X 2 is a substituted or unsubstituted aryl group having 6 to 30 ring carbon atoms, provided that Ar 1 or Ar 2 is different from X 2 . In a case where any of Ar 1 , Ar 2 , and X 2 is the aryl group having a substituent, the substituent is independently an alkyl group, a cycloalkyl group, an aryl group, a silyl group, or a cyano group. |