Organic light emitting device
The present invention relates to an organic light-emitting device which comprises: a first electrode; a second electrode opposite the first electrode; and an intermediate layer interposed between the first electrode and the second electrode and containing a first compound and a second compound, wher...
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Format: | Patent |
Sprache: | eng ; kor |
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Zusammenfassung: | The present invention relates to an organic light-emitting device which comprises: a first electrode; a second electrode opposite the first electrode; and an intermediate layer interposed between the first electrode and the second electrode and containing a first compound and a second compound, wherein the first compound includes a first silyl group-containing group and two carbazole-derived groups, one carbazole-derived group of the two carbazole-derived groups is bonded through an N atom of the other carbazole-derived group, the second compound includes a second silyl group-containing group, a triazine group, and the carbazole-derived group, and at least one of the first compound and the second compound has a triplet energy level (T1) of 2.81 eV or higher. In the organic light-emitting device according to one aspect, an exciton is easily transferred to a blue light-emitting emitter compound to suppress device deterioration. As a result, the organic light-emitting device with high efficiency and long lifespans can be manufactured.
본 발명은 제1전극; 상기 제1전극에 대향하는 제2전극; 및 상기 제1전극 및 제2전극 사이에 개재되고, 제1화합물 및 제2화합물을 포함하는 중간층을 포함하고, 상기 제1화합물은 제1실릴기-함유 그룹 및 2개의 카바졸-유래 그룹을 포함하되, 상기 2개의 카바졸-유래 그룹 중 하나의 카바졸-유래 그룹이 다른 하나의 카바졸-유래 그룹의 N 원자를 통해서 결합되고, 상기 제2화합물은 제2실릴기-함유 그룹, 트리아진 그룹, 및 카바졸-유래 그룹을 포함하고, 상기 제1화합물 및 제2화합물 중 적어도 하나는 삼중항 에너지 레벨(T1)이 2.81eV 이상인 유기 발광 소자에 관한 것이다. |
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