| 摘要 |
An organic electroluminescence device (1) comprising an anode (2), a cathode (6) and at least a first layer (3), a second layer (4) and a third layer (5) provided between the anode (2) and the cathode (6) in this order from the anode side to the cathode side, at least one of the first to third layers (3), (4) and (5) containing a phospholuminescent compound, at least one of the first to third layers (3), (4) and (5) being a luminescent layer, and at least three compounds which constitute the first to third layers (3), (4) and (5), respectively, and which are not the phospholuminescent compound being compounds represented by the formula (1): (1) wherein R1 to R7 independently represent a hydrogen atom or a substituent, provided that adjacent substituents may together form a ring. |
