Composition and organic light-emitting device including the same
摘要
說明書
The first compound may include at least one electron transport moiety, the second compound may not include an electron transport moiety, and the third compound may have a greater band gap than a band gap of the first compound and a band gap of the second compound.
A difference between an absolute value of a highest occupied molecular orbital (HOMO) energy level of the first compound and an absolute value of a HOMO energy level of the second compound may be equal to or less than 0.35 eV.
The HOMO energy levels of the first compound and the second compound may each be measured using a DFT method with Gaussian program on structures optimized using B3LYP/6-31G(d,p) functional and basis set.
Platinum-Containing Organometallic Compound
In an embodiment, the platinum-containing organometallic compound may include platinum and an organic ligand, and the platinum and the organic ligand together may include 1, 2, or 3 cyclometalated rings.
In an embodiment, the platinum-containing organometallic compound may include platinum and a tetradentate organic ligand, and the platinum and the tetradentate organic ligand together may include 3 or 4 cyclometalated rings.
In an embodiment, the tetradentate organic ligand may include a benzimidazole group, or the tetradentate organic ligand may include at least one of an amino group, a boryl group, a silyl group, an alkoxy group or any combination thereof.
In one or more embodiments, the platinum-containing organometallic compound may be an organometallic compound represented by Formula 1:
