| abstract |
Provided are a heterocyclic compound capable of greatly improving the lifetime, efficiency, electrochemical stability, and thermal stability of an organic light emitting device, and an organic light emitting device containing the heterocyclic compound in an organic compound layer. A dibenzo [b, d] thiophene derivative having an aryl group such as a phenyl group or a biphenyl group at the 1-position of the dibenzo [b, d] thiophene ring and a 9'-position at the 3 position. A derivative having a 9H, 9′H-3,3′-bicarbazol-9-yl group substituted at the position with an aryl group such as a phenyl group or a biphenyl group. An organic light emitting device including an anode, a cathode, and one or more organic layers provided between the anode and the cathode, wherein at least one of the organic layers includes the dibenzo [b, d] thiophene derivative element. [Selection figure] None |