A composition including a platinum-containing organometallic compound, a first compound, a second compound, and a third compound, and an organic light-emitting device including the same wherein the composition does not comprise iridium,
the platinum-containing organometallic compound, the first compound, the second compound, and the third compound are different from each other,
the first compound comprises at least one electron transport moiety,
the second compound and the third compound do not include a metal,
each of an absolute value of a HOMO energy level of the second compound and an absolute value of a HOMO energy level of the third compound is 5.30 eV to 5.85 eV,
the difference between the absolute value of the HOMO energy level of the second compound and the absolute value of the HOMO energy level of the third compound is 0.01 eV to 0.30 eV.
一种包括含
铂有机
金属化合物、第一化合物、第二化合物和第三化合物的组合物,以及包括该组合物的有机发光器件,其中该组合物不含
铱、
含
铂有机
金属化合物、第一化合物、第二化合物和第三化合物彼此不同、
第一化合物包含至少一个电子传输分子、
第二化合物和第三化合物不包含
金属、
第二种化合物的 HO
MO 能级绝对值和第三种化合物的 HO
MO 能级绝对值各为 5.30 eV 至 5.85 eV、
第二种化合物的 HO
MO 能级绝对值与第三种化合物的 HO
MO 能级绝对值之差为 0.01 eV 至 0.30 eV。