| abstract |
PROBLEM TO BE SOLVED: To provide a plurality of host materials and an organic electroluminescent device containing the same. A plurality of host materials including a first host material containing a compound represented by the specific formula 1 and a second host material containing a compound represented by the specific formula 2, and organic electroluminescence containing the same. Regarding cent devices. By including a specific combination of compounds as the host material, it is possible to provide an organic electroluminescent device having higher luminous efficiency and / or longer life characteristics as compared to conventional organic electroluminescent devices. is there. [Selection diagram] None |