申请人:IDEMITSU KOSAN CO.,LTD.
公开号:US20220416178A1
公开(公告)日:2022-12-29
An organic electroluminescence device having a cathode; an anode; and an emitting layer disposed between the cathode, wherein a first layer in an electron-transporting zone disposed between the emitting layer and the cathode contains a first compound and a second compound, the electron mobility μ
1
of the first compound is 1.0×10
−5
cm
2
/Vs or lower, and the second compound is one or more selected from the group consisting of compounds represented by each of the following formulas (11), (12), and (13), provided that the first compound and the second compound are different compounds.