| 摘要 |
Disclosed is an organic electroluminescent device having high efficiency even after being left in a high temperature and high humidity environment and showing a small decrease in light emission luminance at the initial stage of driving. Particularly disclosed is an excellent composition for use in an organic electroluminescent device, with which an organic electroluminescent device having high efficiency even after being left in a high temperature and high humidity environment and showing a small decrease in light emission luminance at the initial stage of driving can be provided by wet film formation. Specifically disclosed is a composition which is used in an organic electroluminescent device having, on a substrate, a pair of electrodes and at least one organic layer including a luminescent layer interposed between the electrodes, and contains a compound represented by general formula (1). In general formula (1), Ar1 represents an aryl group or a heteroaryl group; R1 to R8 each independently represent a hydrogen atom or a substituent, and at least one of R1 to R8 represents a substituent (2) having a specific structure such as a t-butyl group. In the case where R3 and R6 each represent a substituent (2), R3 and R6 represent different substituents. |
