KR20130025087A - Novel organic electroluminescent compounds and organic electroluminescent device using the same - Google Patents

Novel organic electroluminescent compounds and organic electroluminescent device using the same Download PDF

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KR20130025087A
KR20130025087A KR1020110088410A KR20110088410A KR20130025087A KR 20130025087 A KR20130025087 A KR 20130025087A KR 1020110088410 A KR1020110088410 A KR 1020110088410A KR 20110088410 A KR20110088410 A KR 20110088410A KR 20130025087 A KR20130025087 A KR 20130025087A
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substituted
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aryl
halogen
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김희숙
나홍엽
구종석
권혁주
이경주
김봉옥
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롬엔드하스전자재료코리아유한회사
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Priority to KR1020110088410A priority Critical patent/KR20130025087A/en
Priority to TW101131740A priority patent/TW201326359A/en
Priority to CN201280049556.9A priority patent/CN103857673A/en
Priority to PCT/KR2012/007001 priority patent/WO2013032278A1/en
Priority to JP2014528286A priority patent/JP2014531419A/en
Publication of KR20130025087A publication Critical patent/KR20130025087A/en

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Abstract

PURPOSE: An organic electroluminescent compound is provided to prevent the crystallization by having high electron transfer efficiency and to easily form a layer, thereby manufacturing an organic light emitting diode with improved power efficiency. CONSTITUTION: An organic electroluminescent compound is indicated in chemical formula 1. In the chemical formula 1, Z is a functional group indicated in chemical formula 1-a and formula 1-b; L1 is a single bond, a substituted or unsubstituted (C2-30)heteroarylene, or substituted or unsubstituted (C6-30)arylene. An organic electroluminescent diode comprises a first electrode, a second electrode, and one or more organic material layers inserted between the first electrode and second electrode. The organic material layer includes one or more phosphorescent dopants and one or more of the organic electroluminescent compounds.

Description

신규한 유기 발광 화합물 및 이를 채용하고 있는 유기 발광 화합물{Novel organic electroluminescent compounds and organic electroluminescent device using the same}Novel organic electroluminescent compounds and organic electroluminescent device using the same

본 발명은 신규한 유기 발광 화합물 및 이를 포함하고 있는 유기 전계 발광 소자 에 관한 것이다.The present invention relates to a novel organic light emitting compound and an organic electroluminescent device comprising the same.

표시 소자 중, 전기 발광 소자(electroluminescence device: EL device)는 자체 발광형 표시 소자로서 시야각이 넓고 콘트라스트가 우수할 뿐만 아니라 응답속도가 빠르다는 장점을 가지고 있다. 1987년 이스트만 코닥(Eastman Kodak)사는 발광층 형성용 재료로서 저분자인 방향족 디아민과 알루미늄 착물을 이용하고 있는 유기 EL 소자를 처음으로 개발하였다[Appl. Phys. Lett. 51, 913, 1987].Among the display elements, an electroluminescence device (EL device) is a self-luminous display element and has advantages of wide viewing angle, excellent contrast, and fast response speed. In 1987, Eastman Kodak developed for the first time an organic EL device using a low molecular weight aromatic diamine and an aluminum complex as a material for forming a light emitting layer [Appl. Phys. Lett. 51, 913, 1987].

OLED에서 발광 효율을 결정하는 가장 중요한 요인은 발광 재료이다. 발광 재료로는 현재까지 형광 재료가 널리 사용되고 있으나, 전기발광의 메커니즘 상 인광 재료의 개발은 이론적으로 4배까지 발광 효율을 개선시킬 수 있는 가장 좋은 방법 중 하나이다. 현재까지 이리듐(III)착물 계열이 인광 발광 재료로 널리 알려져 있으며, 각 RGB 별로는 (acac)Ir(btp)2, Ir(ppy)3 및 Firpic 등의 재료가 알려져 있다. 특히, 최근 일본, 구미에서 많은 인광 재료들이 연구되고 있다.The most important factor determining the luminous efficiency in OLEDs is the luminous material. Fluorescent materials are widely used as the light emitting materials to date, but the development of phosphorescent materials is one of the best ways to improve the luminous efficiency theoretically up to 4 times. To date, iridium (III) complexes are widely known as phosphorescent materials, and for each RGB, materials such as (acac) Ir (btp) 2 , Ir (ppy) 3, and Firpic are known. In particular, many phosphorescent materials have recently been studied in Japan and Europe.

Figure pat00001
Figure pat00001

인광 발광체의 호스트 재료로는 현재까지 CBP가 가장 널리 알려져 있고, BCP 및 BAlq 등의 정공차단층을 적용한 고효율의 OLED가 공지되어 있으며, 일본의 파이오니어 등에서는 BAlq 유도체를 호스트로 이용해 고성능의 OLED를 개발한 바 있다.CBP is the most widely known host material for phosphorescent emitters. To date, high-efficiency OLEDs with hole blocking layers such as BCP and BAlq have been known. In Japan, Pioneer has developed high-performance OLEDs using BAlq derivatives as hosts. I've done it.

Figure pat00002
Figure pat00002

그러나 기존의 재료들은 발광 특성 측면에서는 유리한 면이 있으나, 유리전이온도가 낮고 열적 안정성이 매우 좋지 않아서, 진공 하에서 고온 증착 공정을 거칠 때, 물질이 변하는 단점을 갖고 있다. OLED에서 전력효율 = [(π/전압) × 전류효율]의 관계에 있으므로 전력 효율은 전압에 반비례하고, 따라서 OLED의 소비 전력을 낮으려면 전력 효율을 높여야 한다. 실제 인광 발광 재료를 사용한 OLED는 형광 발광 재료를 사용한 OLED에 비해 전류 효율(cd/A)이 상당히 높으나, 인광 발광 재료의 호스트로 사용되던 BAlq 또는 CBP와 같은 종래재료의 경우, 형광재료를 사용한 OLED에 비해 구동 전압이 높아서 전력 효율(lm/w)면에서 큰 이점이 없었다. 또한, OLED 소자에 사용할 경우 수명 측면에서도 만족스럽지 못하였고, 더욱 성능이 뛰어난 적색 호스트 재료의 개발이 요구되고 있다.However, existing materials have advantages in terms of luminescence properties, but the glass transition temperature is low and the thermal stability is not very good, so that the material changes when undergoing a high temperature deposition process under vacuum. In the relationship of power efficiency = [(π / voltage) × current efficiency] in OLED, power efficiency is inversely proportional to voltage. Therefore, to lower the power consumption of OLED, power efficiency must be increased. In fact, OLEDs using phosphorescent materials have considerably higher current efficiency (cd / A) than OLEDs using fluorescent materials, but in the case of conventional materials such as BAlq or CBP used as a host of phosphorescent materials, OLEDs using fluorescent materials Compared with the higher driving voltage, there was no significant advantage in terms of power efficiency (lm / w). In addition, when used in OLED devices, it is not satisfactory in terms of lifespan, and there is a need for development of a red host material having better performance.

한편, 일본 공개 특허공보 제1999-149987호 공보에는, 플루오란텐에 N-카바졸릴기가 결합한 화합물과 루블렌을 정공 주입 수송층을 겸한 발광층에 이용한 소자가 개시되어 있으나, 발광색이 황색이었고, 플루오란텐에 N-카바졸릴기가 결합한 화합물을 단독으로 녹색 형광발광 소자의 정공 주입 수송층에 이용한 소자가 개시되어 있다.On the other hand, Japanese Laid-Open Patent Publication No. 1999-149987 discloses a device in which an N-carbazolyl group bonded to fluoranthene and a ruble are used as a light emitting layer serving as a hole injection transport layer, but the emission color was yellow, Disclosed is a device in which a compound in which an N-carbazolyl group is bonded to ten is used alone as a hole injection transport layer of a green fluorescent device.

일본 공개특허공보 제1999-149987호 (1999.06.02)Japanese Laid-Open Patent Publication 1999-149987 (1999.06.02)

Appl. Phys. Lett. 51, 913, 1987 Appl. Phys. Lett. 51, 913, 1987

따라서 본 발명의 목적은 첫째로, 상기한 문제점들을 해결하기 위하여 기존의 재료보다 발광 효율 및 소자 수명이 좋으며, 적색계로 발광하는 우수한 골격의 유기 발광 화합물을 제공하는 것이며 둘째로, 상기 유기 발광 화합물을 발광 재료로서 채용하는 고효율 및 장수명의 유기 전계 발광 소자를 제공하는 것이다. Accordingly, an object of the present invention is to provide an organic light emitting compound having an excellent luminescence efficiency and device life, which emits red light, and to solve the above problems. It is to provide a high efficiency and long life organic electroluminescent element employed as a light emitting material.

본 발명은 상기 과제를 해결하기 위하여, 2개의 방향족기가 융합된 시클릭 또는 헤테로시클릭기가 3번 위치에 도입된 N-카바졸기가 플루오란텐(fluoranthene)에 결합한 화합물 및 이를 인광 호스트 재료로 사용함으로써, 적색의 발광 효율이 높은 유기 전계 발광소자를 얻을 수 있음을 발견하여 본 발명을 완성하기에 이르렀다. In order to solve the above problems, a compound in which an N-carbazole group in which a cyclic or heterocyclic group in which two aromatic groups are fused is introduced at position 3 is bonded to fluoranthene, and used as a phosphorescent host material As a result, the inventors have found that an organic electroluminescent device having a high red light emission efficiency can be obtained, and have completed the present invention.

즉, 하기 화학식 1로 표시되는 유기 발광 화합물 및 이를 포함하는 유기 전계 발광 소자에 관한 것으로서, 본 발명에 따른 유기 발광 화합물은 기존 재료에 비해 적색 발광 효율이 좋고 재료의 수명특성이 뛰어나 소자의 구동수명이 매우 우수할 뿐만 아니라 전력효율의 상승을 유도하여 소비전력이 개선된 OLED 소자를 제조할 수 있는 장점이 있다.That is, the present invention relates to an organic light emitting compound represented by the following Chemical Formula 1 and an organic electroluminescent device including the same. The organic light emitting compound according to the present invention has better red light emission efficiency and excellent life characteristics of the material than the conventional material, and thus, the driving life of the device. This is not only very good, but also has an advantage of manufacturing an OLED device with improved power consumption by inducing an increase in power efficiency.

[화학식 1][Formula 1]

Figure pat00003
Figure pat00003

[상기 화학식 1에서, [In Formula 1,

Z는

Figure pat00004
또는
Figure pat00005
이고;Z is
Figure pat00004
or
Figure pat00005
ego;

L1은 단일결합, 치환 또는 비치환된 (C2-C30)헤테로아릴렌, 또는 치환 또는 비치환된 (C6-C30)아릴렌이고;L 1 is a single bond, substituted or unsubstituted (C2-C30) heteroarylene, or substituted or unsubstituted (C6-C30) arylene;

X는 -O-, -S-, -CR11R12-또는 -NR13-이고;X is —O—, —S—, —CR 11 R 12 —or —NR 13 —;

R11 내지 R13은 각각 독립적으로 치환 또는 비치환된 (C1-C30)알킬, 치환 또는 비치환된 (C6-C30)아릴, 또는 치환 또는 비치환된 (C2-C30)헤테로아릴이고;R 11 to R 13 are each independently substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, or substituted or unsubstituted (C2-C30) heteroaryl;

R1 내지 R6은 각각 독립적으로 수소, 중수소, 할로겐, 치환 또는 비치환된 (C1-C30)알킬, 치환 또는 비치환된 (C6-C30)아릴, 치환 또는 비치환된 (C2-C30)헤테로아릴, 치환 또는 비치환된 (C3-C30)시클로알킬, 치환 또는 비치환된 5원 내지 7원의 헤테로시클로알킬, 치환 또는 비치환된 (C6-C30)아르(C1-C30)알킬, (C3-C30)시클로알킬이 하나 이상 융합된 치환 또는 비치환된 (C6-C30)아릴, 치환 또는 비치환된 방향족 고리가 하나 이상 융합된 5원 내지 7원의 헤테로시클로알킬, 치환 또는 비치환된 방향족 고리가 하나 이상 융합된 (C3-C30)시클로알킬, -NR14R15, -SiR16R17R18, -SR19, -OR20, (C2-C30)알케닐, (C2-C30)알키닐, 시아노 또는 니트로이고;R 1 to R 6 are each independently hydrogen, deuterium, halogen, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted (C2-C30) hetero Aryl, substituted or unsubstituted (C3-C30) cycloalkyl, substituted or unsubstituted 5- to 7-membered heterocycloalkyl, substituted or unsubstituted (C6-C30) ar (C1-C30) alkyl, (C3 Substituted or unsubstituted (C6-C30) aryl wherein one or more cycloalkyl is fused, 5- to 7-membered heterocycloalkyl, substituted or unsubstituted aromatic, wherein one or more substituted or unsubstituted aromatic rings are fused. (C3-C30) cycloalkyl, at least one ring fused, -NR 14 R 15 , -SiR 16 R 17 R 18 , -SR 19 , -OR 20, (C2-C30) alkenyl, (C2-C30) alky Niel, cyano or nitro;

R14 내지 R20는 각각 독립적으로 수소, 중수소, 할로겐, 치환 또는 비치환된 (C1-C30)알킬, 치환 또는 비치환된 (C6-C30)아릴, 치환 또는 비치환된 (C2-C30)헤테로아릴이거나, 인접한 치환체와 융합고리를 포함하거나 포함하지 않는 치환 또는 비치환된 (C3-C30)알킬렌 또는 치환 또는 비치환된 (C3-C30)알케닐렌으로 연결되어 지환족 고리 및 단일환 또는 다환의 방향족 고리를 형성할 수 있으며, 상기 형성된 지환족 고리 및 단일환 또는 다환의 방향족 고리의 탄소 원자는 질소, 산소 및 황으로부터 선택되는 하나 이상의 헤테로원자로 치환될 수 있으며;R 14 to R 20 are each independently hydrogen, deuterium, halogen, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted (C2-C30) hetero A cycloaliphatic ring and a monocyclic ring or a polycyclic ring which is connected to a substituted or unsubstituted (C3-C30) alkylene or a substituted or unsubstituted (C3-C30) alkenylene, which is aryl or does not include or include a fused ring with adjacent substituents. An aromatic ring of the ring may be formed, and the carbon atoms of the alicyclic ring and the monocyclic or polycyclic aromatic ring formed may be substituted with one or more heteroatoms selected from nitrogen, oxygen, and sulfur;

a, d, e 및 g는 각각 독립적으로 1 내지 4의 정수로, 2 이상의 정수인 경우 동일하거나 상이할 수 있고; a, d, e and g are each independently an integer of 1 to 4, and may be the same or different when two or more integers;

b 및 f는 각각 독립적으로 1 내지 3의 정수로, 2 이상의 정수인 경우 동일하거나 상이할 수 있고; b and f are each independently an integer of 1 to 3, and may be the same or different when two or more integers;

c는 1 내지 5의 정수로, 2 이상의 정수인 경우 동일하거나 상이할 수 있고; c is an integer of 1 to 5, and may be the same or different when it is an integer of 2 or more;

m은 1, 2 또는 3의 정수이고;m is an integer of 1, 2 or 3;

상기 헤테로시클로알킬, 헤테로아릴렌 및 헤테로아릴은 B, N, O, S, P(=O), Si 및 P로부터 선택된 하나 이상의 헤테로원자를 포함한다.]Wherein said heterocycloalkyl, heteroarylene and heteroaryl include one or more heteroatoms selected from B, N, O, S, P (= 0), Si and P.]

본 발명에 기재된 「알킬」, 「알콕시」 및 그 외 「알킬」부분을 포함하는 치환체는 직쇄 또는 분쇄 형태를 모두 포함하고, 「시클로알킬」은 단일 고리계 뿐만 아니라 치환 또는 비치환된 아다만틸 또는 치환 또는 비치환된 (C7-C30)바이시클로알킬과 같은 여러 고리계 탄화수소도 포함한다. 본 발명에 기재된 「아릴」은 하나의 수소 제거에 의해서 방향족 탄화수소로부터 유도된 유기 라디칼로, 각 고리에 적절하게는 4 내지 7개, 바람직하게는 5 또는 6개의 고리원자를 포함하는 단일 또는 융합고리계를 포함하며, 다수개의 아릴이 단일결합으로 연결되어 있는 형태까지 포함한다. 구체적인 예로서 페닐, 나프틸, 비페닐, 터페닐, 안트릴, 인데닐(indenyl), 플루오레닐, 페난트릴, 트리페닐레닐, 피렌일, 페릴렌일, 크라이세닐, 나프타세닐, 플루오란텐일 등을 포함하지만, 이에 한정되지 않는다. 상기 나프틸은 1-나프틸 및 2-나프틸을 포함하며, 안트릴은 1-안트릴, 2-안트릴 및 9-안트릴을 포함하며, 페난트릴은 1-페난트릴, 2-페난트릴, 3-페난트릴, 4-페난트릴, 9-페난트릴을 포함하며, 나프타세닐은 1-나프타세닐, 2-나프타세닐, 9-나프타세닐을 포함하며, 피렌일은 1-피렌일, 2-피렌일, 4-피렌일을 포함하며, 비페닐은 2-비페닐, 3-비페닐, 4-비페닐을 포함하며, 터페닐은 p-터페닐-4-일기, p-터페닐-3-일기, p-터페닐-2-일기, m-터페닐-4-일기, m-터페닐-3-일기, m-터페닐-2-일기을 포함하며, 플루오레닐은 1-플루오레닐, 2-플루오레닐, 3-플루오레닐, 4-플루오레닐 및 9-플루오레닐을 모두 포함한다. 본 발명에 기재된 「헤테로아릴」은 방향족 고리 골격 원자로서 B, N, O, S, P(=O), Si 및 P로부터 선택되는 1 내지 4개의 헤테로원자를 포함하고 나머지 방향족 고리 골격 원자가 탄소인 아릴 그룹을 의미하는 것으로, 5 내지 6원 단환 헤테로아릴, 및 하나 이상의 벤젠 환과 축합된 다환식 헤테로아릴이며, 부분적으로 포화될 수도 있다. 또한, 본 발명에서의 헤테로아릴은 하나 이상의 헤테로아릴이 단일결합으로 연결된 형태도 포함한다. 상기 헤테로아릴기는 고리내 헤테로원자가 산화되거나 사원화되어, 예를 들어 N-옥사이드 또는 4차 염을 형성하는 2가 아릴 그룹을 포함한다. 구체적인 예로서 퓨릴, 티오펜일, 피롤릴, 이미다졸릴, 피라졸릴, 티아졸릴, 티아디아졸릴, 이소티아졸릴, 이속사졸릴, 옥사졸릴, 옥사디아졸릴, 트리아진일, 테트라진일, 트리아졸릴, 퓨라잔일, 피리딜, 피라진일, 피리미딘일, 피리다진일 등의 단환 헤테로아릴, 벤조퓨란일, 벤조티오펜일, 다이벤조퓨란일, 다이벤조티오페일, 이소벤조퓨란일, 벤조이미다졸릴, 벤조티아졸릴, 벤조이소티아졸릴, 벤조이속사졸릴, 벤조옥사졸릴, 이소인돌릴, 인돌릴, 인다졸릴, 벤조티아디아졸릴, 퀴놀릴, 이소퀴놀릴, 신놀리닐, 퀴나졸리닐, 퀴녹살리닐, 카바졸릴, 페난트리딘일, 벤조디옥솔릴, 아크리디닐, 페난트롤리닐, 페나지닐, 페노싸이아지닐, 페녹사지닐 등의 다환식 헤테로아릴 및 이들의 상응하는 N-옥사이드(예를 들어, 피리딜 N-옥사이드, 퀴놀릴 N-옥사이드), 이들의 4차 염 등을 포함하지만, 이에 한정되지 않는다. 상기 피롤릴은 1-피롤릴, 2-피롤릴, 3-피롤릴을 포함하며, 피리딜은 2-피리딜, 3-피리딜, 4-피리딜을 포함하며, 인돌릴은 1-인돌릴, 2-인돌릴, 3-인돌릴, 4-인돌릴, 5-인돌릴, 6-인돌릴, 7-인돌릴을 포함하며, 이소인돌릴은 1-이소인돌릴, 2-이소인돌릴, 3-이소인돌릴, 4-이소인돌릴, 5-이소인돌릴, 6-이소인돌릴, 7-이소인돌릴을 포함하며, 퓨릴은 2-퓨릴, 3-퓨릴을 포함하며, 벤조퓨란일은 2-벤조퓨란일, 3-벤조퓨란일, 4-벤조퓨란일, 5-벤조퓨란일, 6-벤조퓨란일, 7-벤조퓨란일을 포함하며, 이소벤조퓨란일은 1-이소벤조퓨란일, 3-이소벤조퓨란일, 4-이소벤조퓨란일, 5-이소벤조퓨란일, -이소벤조퓨란일, 7-이소벤조퓨란일을 포함하며, 퀴놀릴은 3-퀴놀릴, 4-퀴놀릴, 5-퀴놀릴, 6-퀴놀릴, 7-퀴놀릴, 8-퀴놀릴을 포함하며, 이소퀴놀릴은 1-이소퀴놀릴, 3-이소퀴놀릴, 4-이소퀴놀릴, 5-이소퀴놀릴, 6-이소퀴놀릴, 7-이소퀴놀릴, 8-이소퀴놀릴기을 포함하며, 퀴녹살리닐은 2-퀴녹살리닐, 5-퀴녹살리닐, 6-퀴녹살리닐을 포함하며, 카바졸릴은 1-카바졸릴, 2-카바졸릴, 3-카바졸릴, 4-카바졸릴, 9-카바졸릴을 포함하며, 페난트리딘일은 1-페난트리딘일, 2-페난트리딘일, 3-페난트리딘일, 4-페난트리딘일, 6-페난트리딘일, 7-페난트리딘일, 8-페난트리딘일, 9-페난트리딘일, 10-페난트리딘일을 포함하며, 아크리디닐은 1-아크리디닐, 2-아크리디닐, 3-아크리디닐, 4-아크리디닐, 9-아크리디닐을 포함하며, 페난트롤리닐은 1,7-페난트롤린-2-일기, 1,7-페난트롤린-3-일기, 1,7-페난트롤린-4-일기, 1,7-페난트롤린-5-일기, 1,7-페난트롤린-6-일기, 1,7-페난트롤린-8-일기, 1,7-페난트롤린-9-일기, 1,7-페난트롤린-10-일기, 1,8-페난트롤린-2-일기, 1,8-페난트롤린-3-일기, 1,8-페난트롤린-4-일기, 1,8-페난트롤린-5-일기, 1,8-페난트롤린-6-일기, 1,8-페난트롤린-7-일기, ,8-페난트롤린-9-일기,1,8-페난트롤린-10-일기, 1,9-페난트롤린-2-일기, 1,9-페난트롤린-3-일기, 1,9-페난트롤린-4-일기, 1,9-페난트롤린-5-일기, 1,9-페난트롤린-6-일기, 1,9-페난트롤린-7-일기, 1,9-페난트롤린-8-일기, 1,9-페난트롤린-10-일기, 1,10-페난트롤린-2-일기, 1,10-페난트롤린-3-일기, 1,10-페난트롤린-4-일기, 1,10-페난트롤린-5-일기, 2,9-페난트롤린-1-일기, 2,9-페난트롤린-3-일기, 2,9-페난트롤린-4-일기, 2,9-페난트롤린-5-일기, 2,9-페난트롤린-6-일기, 2,9-페난트롤린-7-일기, 2,9-페난트롤린-8-일기, 2,9-페난트롤린-10-일기, 2,8-페난트롤린-1-일기, 2,8-페난트롤린-3-일기, 2,8-페난트롤린-4-일기, 2,8-페난트롤린-5-일기, 2,8-페난트롤린-6-일기, 2,8-페난트롤린-7-일기, 2,8-페난트롤린-9-일기, 2,8-페난트롤린-10-일기, 2,7-페난트롤린-1-일기, 2,7-페난트롤린-3-일기, 2,7-페난트롤린-4-일기, 2,7-페난트롤린-5-일기, 2,7-페난트롤린-6-일기, 2,7-페난트롤린-8-일기, 2,7-페난트롤린-9-일기, 2,7-페난트롤린-10-일기을 포함하며, 페나지닐은 1-페나지닐, 2-페나지닐을 포함하며, 페노싸이아지닐은 1-페노싸이아지닐, 2-페노싸이아지닐, 3-페노싸이아지닐, 4-페노싸이아지닐, 10-페노싸이아지닐을 포함하며, 페녹사지닐은 1-페녹사지닐, 2-페녹사지닐, 3-페녹사지닐, 4-페녹사지닐, 10-페녹사지닐을 포함하며, 옥사졸릴은 2-옥사졸릴, 4-옥사졸릴, 5-옥사졸릴을 포함하며, 옥사디아졸은 2-옥사디아졸릴, 5-옥사디아졸릴을 포함하며, 퓨라잔일은 3-퓨라잔일을 포함하며, 다이벤조퓨란일은 1-다이벤조퓨란일, 2-다이벤조퓨란일, 3-다이벤조퓨란일, 4-다이벤조퓨란일을 포함하며, 다이벤조싸이오페닐은 1-다이벤조싸이오페닐, 2-다이벤조싸이오페닐, 3-다이벤조싸이오페닐, 4-다이오벤조싸이오페닐을 모두 포함한다.Substituents including the "alkyl", "alkoxy" and other "alkyl" moieties described herein include all linear or pulverized forms, and "cycloalkyl" is not only a monocyclic system but also substituted or unsubstituted adamantyl Or several ring-based hydrocarbons such as substituted or unsubstituted (C7-C30) bicycloalkyl. "Aryl" described in the present invention is an organic radical derived from an aromatic hydrocarbon by one hydrogen removal, and a single or fused ring containing 4 to 7, preferably 5 or 6 ring atoms in each ring as appropriate. It includes a system, including a form in which a plurality of aryl is connected by a single bond. Specific examples include phenyl, naphthyl, biphenyl, terphenyl, anthryl, indenyl, fluorenyl, phenanthryl, triphenylenyl, pyrenyl, peryleneyl, chrysenyl, naphthacenyl, fluoranthenyl and the like. It includes, but is not limited to such. The naphthyl includes 1-naphthyl and 2-naphthyl, anthryl includes 1-anthryl, 2-anthryl and 9-anthryl, phenanthryl includes 1-phenanthryl, Phenanthryl, 9-phenanthryl, 9-phenanthryl, naphthacenyl includes 1-naphthacenyl, 2-naphthacenyl, 9-naphthacenyl, pyranyl includes 1-pyrene, Biphenyl, 3-biphenyl, 4-biphenyl, terphenyl includes p-terphenyl-4-yl group, p-terphenyl- Yl group, m-terphenyl-3-yl group, m-terphenyl-2-yl group, fluorenyl includes 1-fluorenyl, 2-fluorenyl, 3-fluorenyl, 4-fluorenyl, and 9-fluorenyl. "Heteroaryl" described in the present invention contains 1 to 4 heteroatoms selected from B, N, O, S, P (= O), Si and P as aromatic ring skeleton atoms, and the remaining aromatic ring skeleton atoms are carbon. Means an aryl group, 5-6 membered monocyclic heteroaryl, and polycyclic heteroaryl condensed with one or more benzene rings, which may be partially saturated. In addition, heteroaryl in the present invention also includes a form in which one or more heteroaryl is connected by a single bond. Such heteroaryl groups include divalent aryl groups in which heteroatoms in the ring are oxidized or quaternized to form, for example, N-oxides or quaternary salts. Specific examples include furyl, thiophenyl, pyrrolyl, imidazolyl, pyrazolyl, thiazolyl, thiadiazolyl, isothiazolyl, isoxazolyl, oxazolyl, oxadiazolyl, triazinyl, tetrazinyl, triazolyl, Monocyclic heteroaryl such as furazanyl, pyridyl, pyrazinyl, pyrimidinyl, pyridazinyl, benzofuranyl, benzothiophenyl, dibenzofuranyl, dibenzothiofail, isobenzofuranyl, benzoimidazolyl , Benzothiazolyl, benzoisothiazolyl, benzoisoxazolyl, benzooxazolyl, isoindoleyl, indolyl, indazolyl, benzothiadiazolyl, quinolyl, isoquinolyl, cinolinyl, quinazolinyl, quinoxalin Polycyclic heteroaryls such as nil, carbazolyl, phenantridinyl, benzodioxolyl, acridinyl, phenanthrolinyl, phenazinyl, phenthiazinyl, phenoxazinyl, and their corresponding N-oxides (e.g. , Pyridyl N-oxide, quinolyl N-oxide), And the like of the quaternary salt, but is not limited to this. The pyrrolyl comprises 1-pyrrolyl, 2-pyrrolyl, 3-pyrrolyl, pyridyl includes 2-pyridyl, 3-pyridyl, 4-pyridyl, and indolyl is 1-indolyl , 2-indolyl, 3-indolyl, 4-indolyl, 5-indolyl, 6-indolyl, 7-indolyl, isoindoleyl includes 1-isoindoleyl, 2-isoindoleyl, 3-isoindolyl, 4-isoindolyl, 5-isoindolyl, 6-isoindolinyl, 7-isoindolinyl, furyl includes 2-furyl, 3-furyl, benzofuranyl is 2 -Benzofuranyl, 3-benzofuranyl, 4-benzofuranyl, 5-benzofuranyl, 6-benzofuranyl, 7-benzofuranyl, isobenzofuranyl is 1-isobenzofuranyl, 3 Isobenzofuranyl, 4-isobenzofuranyl, 5-isobenzofuranyl, -isobenzofuranyl, 7-isobenzofuranyl, and quinolyl is 3-quinolyl, 4-quinolyl, 5 -Quinolyl, 6-quinolyl, 7-quinolyl, 8-quinolyl, isoquinolyl includes 1-isoquinolyl, 3-isoquinolyl, 4-isoquinolyl, 5 Isoquinolyl, 6-isoquinolyl, 7-isoquinolyl, 8-isoquinolyl groups, quinoxalinyl includes 2-quinoxalinyl, 5-quinoxalinyl, 6-quinoxalinyl, , Carbazolyl includes 1-carbazolyl, 2-carbazolyl, 3-carbazolyl, 4-carbazolyl, 9-carbazolyl, and phenantridinyl is 1-phenanthridinyl, 2-phenanthridinyl, 3- Phenanthridinyl, 4-phenanthridinyl, 6-phenanthridinyl, 7-phenanthridinyl, 8-phenanthridinyl, 9-phenanthridinyl, 10-phenanthridinyl, and acridinyl is 1-arc Ridinyl, 2-acridinyl, 3-acridinyl, 4-acridinyl, 9-acridinyl, wherein phenanthrolinyl is a 1,7-phenanthrolin-2-yl group, 1,7- Phenanthroline-3-yl, 1,7-phenanthroline-4-yl, 1,7-phenanthroline-5-diary, 1,7-phenanthroline-6-diary, 1,7-phenanthrole Lin-8-diary, 1,7-phenanthroline-9-diary, 1,7-phenanthroline-10-diary, 1,8-phenanthroline-2-yl, 1,8-phenanthroline- 3-diary, 1,8-phenan Rolin-4-yl, 1,8-phenanthroline-5-diary, 1,8-phenanthroline-6-diary, 1,8-phenanthroline-7-diary,, 8-phenanthroline-9 -Diary, 1,8-phenanthroline-10-diary, 1,9-phenanthroline-2-yl, 1,9-phenanthroline-3-yl, 1,9-phenanthroline-4-yl , 1,9-phenanthroline-5-diary, 1,9-phenanthroline-6-diary, 1,9-phenanthroline-7-diary, 1,9-phenanthroline-8-diary, 1 , 9-phenanthroline-10- diary, 1,10-phenanthroline-2-yl, 1,10-phenanthroline-3-yl, 1,10-phenanthroline-4-yl, 1,10 -Phenanthroline-5- diary, 2,9-phenanthroline-1-yl, 2,9-phenanthroline-3-yl, 2,9-phenanthroline-4-yl, 2,9-phenan Trolline-5-diary, 2,9-phenanthroline-6-diary, 2,9-phenanthroline-7-diary, 2,9-phenanthroline-8-diary, 2,9-phenanthroline -10- diary, 2,8-phenanthroline-1-yl, 2,8-phenanthroline-3-yl, 2,8-phenanthroline-4-yl, 2,8-phenanthroline-5 -Diary, 2,8-phenanthroline-6-diary, 2,8-phenanthroline-7-diary, 2,8-phenanthroline-9-diary, 2,8-phenanthrole -10- diary, 2,7-phenanthroline-1-yl, 2,7-phenanthroline-3-yl, 2,7-phenanthroline-4-yl, 2,7-phenanthroline-5 -Diary, 2,7-phenanthroline-6-diary, 2,7-phenanthroline-8-diary, 2,7-phenanthroline-9-diary, 2,7-phenanthroline-10-diary And phenazinyl includes 1-phenazinyl, 2-phenazinyl, and phenothiazinyl includes 1-phenothiazinyl, 2-phenothiazinyl, 3-phenothiazinyl, 4-phenothiaia Genyl, 10-phenothiazinyl, phenoxazinyl includes 1-phenoxazinyl, 2-phenoxazinyl, 3-phenoxazinyl, 4-phenoxazinyl, 10-phenoxazinyl, oxa Zolyl includes 2-oxazolyl, 4-oxazolyl, 5-oxazolyl, oxadiazoles include 2-oxazolyl, 5-oxazozolyl, furazanyl includes 3-furazanyl, Dibenzofuranyl includes 1-dibenzofuranyl, 2-dibenzofuranyl, 3-dibenzofuranyl, 4-dibenzofuranyl, and Phenyl includes all of 1-dibenzo thiophenyl, 2-benzo thiophenyl, 3-benzo thiophenyl, 4-benzo diode thiophenyl.

또한, 본 발명에 기재되어 있는 ‘(C1-C30)알킬’기는 바람직하게는 (C1-C20)알킬이고, 더 바람직하게는 (C1-C10)알킬이며, ‘(C6-C30)아릴’기는 바람직하게는 (C6-C20)아릴이고, 더 바람직하게는 (C6-C12)아릴이다. ‘(C2-C30)헤테로아릴’기는 바람직하게는 (C2-C20)헤테로아릴이고, 더 바람직하게는 (C2-C12)헤테로아릴이다. ‘(C3-C30)시클로알킬’기는 바람직하게는 (C3-C20)시클로알킬이고, 더 바람직하게는 (C3-C7)시클로알킬이다. Further, the '(C1-C30) alkyl' group described in the present invention is preferably (C1-C20) alkyl, more preferably (C1-C10) alkyl, and the '(C6-C30) aryl' group is preferred. Preferably (C6-C20) aryl, more preferably (C6-C12) aryl. The '(C2-C30) heteroaryl' group is preferably (C2-C20) heteroaryl, more preferably (C2-C12) heteroaryl. The '(C3-C30) cycloalkyl' group is preferably (C3-C20) cycloalkyl, more preferably (C3-C7) cycloalkyl.

또한 본 발명에 기재되어 있는 “치환 또는 비치환”이라는 기재에서 ‘치환’은 비치환된 치환기에 더 치환되는 경우를 뜻하며, 상기 L1, R1 내지 R6 및 R11 내지 R20에 더 치환되는 치환기는 서로 독립적으로 중수소, 할로겐, (C1-C30)알킬, 할로겐이 치환된 (C1-C30)알킬, (C6-C30)아릴, (C2-C30)헤테로아릴, (C6-C30)아릴이 치환된 (C2-C30)헤테로아릴, 5원 내지 7원의 헤테로시클로알킬, (C3-C30)시클로알킬, 트리(C1-C30)알킬실릴, 트리(C6-C30)아릴실릴, 디(C1-C30)알킬(C6-C30)아릴실릴, (C1-C30)알킬디(C6-C30)아릴실릴, (C2-C30)알케닐, (C2-C30)알키닐, 시아노, N-카바졸릴, N-벤조카바졸릴, N-다이벤조카바졸릴, 디(C1-C30)알킬아미노, 디(C6-C30)아릴아미노, (C1-C30)알킬(C6-C30)아릴아미노, 디(C6-C30)아릴보로닐, 디(C1-C30)알킬보로닐, (C1-C30)알킬(C6-C30)아릴보로닐, (C6-C30)아르(C1-C30)알킬, (C1-C30)알킬(C6-C30)아릴, 카르복실, 니트로 및 히드록시로 이루어진 군으로부터 선택되는 하나 이상인 것을 의미한다.In addition, in the description of "substituted or unsubstituted" described in the present invention, 'substituted' refers to a case which is further substituted with an unsubstituted substituent, and further substituted with L 1 , R 1 to R 6 and R 11 to R 20 . Substituents independently of one another are deuterium, halogen, (C1-C30) alkyl, halogen-substituted (C1-C30) alkyl, (C6-C30) aryl, (C2-C30) heteroaryl, (C6-C30) aryl Substituted (C2-C30) heteroaryl, 5- to 7-membered heterocycloalkyl, (C3-C30) cycloalkyl, tri (C1-C30) alkylsilyl, tri (C6-C30) arylsilyl, di (C1- C30) alkyl (C6-C30) arylsilyl, (C1-C30) alkyldi (C6-C30) arylsilyl, (C2-C30) alkenyl, (C2-C30) alkynyl, cyano, N-carbazolyl, N-benzocarbazolyl, N-dibenzocarbazolyl, di (C1-C30) alkylamino, di (C6-C30) arylamino, (C1-C30) alkyl (C6-C30) arylamino, di (C6-C30 Aryl boronyl, di (C1-C30) alkyl boronyl, (C1-C30) alkyl (C6-C30) arylboronyl, (C6-C30) ar (C1-C30) alkyl, (C1-C30) Alkyl (C6-C30) aryl means one or more selected from the group consisting of carboxyl, nitro and hydroxy.

더욱 구체적으로, 상기 L1은 단일결합, (C2-C30)헤테로아릴렌 또는 (C6-C30)아릴렌이고; X는 -O-, -S-, -CR11R12- 또는 -NR13-이고; R11 내지 R13은 각각 독립적으로 (C1-C30)알킬, (C6-C30)아릴 또는 (C2-C30)헤테로아릴이고; R1 내지 R6은 각각 독립적으로 수소, 중수소, 할로겐, (C1-C30)알킬, (C6-C30)아릴, (C2-C30)헤테로아릴 또는 카바졸릴이고; m은 1 또는 2의 정수이고; 상기 L1의 헤테로아릴렌 및 아릴렌, R1 내지 R6 및 R11 내지 R13의 알킬, 아릴 및 헤테로아릴은 각각 중수소, 할로겐, (C1-C30)알킬, 할로겐이 치환된 (C1-C30)알킬, (C6-C30)아릴, (C2-C30)헤테로아릴, 트리(C1-C30)알킬실릴, 트리(C6-C30)아릴실릴, 디(C1-C30)알킬(C6-C30)아릴실릴, (C1-C30)알킬디(C6-C30)아릴실릴, N-카바졸릴, N-벤조카바졸릴 및 N-다이벤조카바졸릴로 이루어진 군으로부터 선택되는 하나 이상으로 더 치환될 수 있다.More specifically, L 1 is a single bond, (C2-C30) heteroarylene or (C6-C30) arylene; X is -O-, -S-, -CR 11 R 12 -or -NR 13- ; R 11 to R 13 are each independently (C 1 -C 30) alkyl, (C 6 -C 30) aryl or (C 2 -C 30) heteroaryl; R 1 to R 6 are each independently hydrogen, deuterium, halogen, (C1-C30) alkyl, (C6-C30) aryl, (C2-C30) heteroaryl or carbazolyl; m is an integer of 1 or 2; Heteroarylene and arylene of L 1 , alkyl, aryl and heteroaryl of R 1 to R 6 and R 11 to R 13 are each deuterium, halogen, (C 1 -C 30) alkyl, halogen substituted (C 1 -C 30) ) Alkyl, (C6-C30) aryl, (C2-C30) heteroaryl, tri (C1-C30) alkylsilyl, tri (C6-C30) arylsilyl, di (C1-C30) alkyl (C6-C30) arylsilyl , (C1-C30) alkyldi (C6-C30) arylsilyl, N-carbazolyl, N-benzocarbazolyl and N-dibenzocarbazolyl may be further substituted with one or more selected.

상기 L1은 단일결합, 페닐렌, 나프틸렌, 비페닐렌, 터페닐렌, 안트릴렌, 안데닐렌, 플루오레닐렌, 페난트릴렌, 트리페닐레닐렌, 피렌일렌, 페릴렌일렌, 크라이세닐렌, 나프타세닐렌, 플루오란텐일, 페닐렌-나프틸렌, 퓨릴렌, 티오페닐렌, 피롤릴렌, 이미다졸릴렌, 피라졸릴렌, 티아졸릴렌, 티아디아졸릴렌, 이소티아졸릴렌, 이속사졸릴렌, 옥사졸릴렌, 옥사디아졸릴렌, 트리아진일렌, 테트라진일렌, 트리아졸릴렌, 퓨라잔일렌, 피리딜렌, 피라진일렌, 피리미딘일렌, 피리다진일렌, 벤조퓨란일렌, 벤조티오펜일렌, 이소벤조퓨란일렌, 벤조이미다졸릴렌, 벤조티아졸릴렌, 벤조이소티아졸릴렌, 벤조이속사졸릴렌, 벤조옥사졸릴렌, 이소인돌릴렌, 인돌릴렌, 인다졸릴렌, 벤조티아디아졸릴렌, 퀴놀릴렌, 이소퀴놀릴렌, 신놀리닐렌, 퀴나졸리닐렌, 퀴녹살리닐렌, 카바졸릴렌, 페난트리딘일렌, 벤조디옥솔릴렌, 다이벤조퓨란닐렌 및 다이벤조싸이오페닐렌으로 이루어진 군에서 선택되는 것이 바람직하다.L 1 is a single bond, phenylene, naphthylene, biphenylene, terphenylene, anthylene, andenylene, fluorenylene, phenanthryl, triphenylenylene, pyrenylene, peryleneylene, chrysenyl Lene, naphthasenylene, fluoranthenyl, phenylene-naphthylene, furylene, thiophenylene, pyrroylene, imidazoylene, pyrazolylene, thiazolylene, thiadiazolylene, isothiazolylene, isox Sazolylene, oxazolylene, oxadiazolylene, triazineylene, tetrazinylene, triazolylene, furazylene, pyridylene, pyrazinylene, pyrimidineylene, pyridazineylene, benzofuranylene, benzothiophene Ylene, isobenzofuranylene, benzoimidazolylene, benzothiazolylene, benzoisothiazolylene, benzoisoxazolylene, benzooxazolylene, isoindoleylene, indolylene, indazolene, benzothiadiazolyl Ylene, quinolinylene, isoquinolinylene, cinnolinylene, quinazolinylene, quinoxalinylene , Carbazolylene, phenanthridineylene, benzodioxoleylene, dibenzofuranylene and dibenzothiophenylene.

본 발명에 따른 유기 발광 화합물로는 대표적으로 하기의 화합물을 들 수 있다.Examples of the organic light emitting compound according to the present invention include the following compounds.

Figure pat00006
Figure pat00006

Figure pat00007
Figure pat00007

Figure pat00008
Figure pat00008

Figure pat00009
Figure pat00009

Figure pat00010
Figure pat00010

Figure pat00011
Figure pat00011

Figure pat00012
Figure pat00012

Figure pat00013
Figure pat00013

Figure pat00014
Figure pat00014

Figure pat00015
Figure pat00015

Figure pat00016
Figure pat00016

Figure pat00017
Figure pat00017

Figure pat00018
Figure pat00018

Figure pat00019
Figure pat00019

Figure pat00020
Figure pat00020

Figure pat00021
Figure pat00021

Figure pat00022
Figure pat00022

Figure pat00023
Figure pat00023

Figure pat00024
Figure pat00024

Figure pat00025
Figure pat00025

Figure pat00026
Figure pat00026

본 발명에 따른 유기 발광 화합물은 하기 반응식에 나타난 바와 같이 제조될 수 있다.The organic light emitting compound according to the present invention can be prepared as shown in the following scheme.

[반응식 1][Reaction Scheme 1]

Figure pat00027
Figure pat00027

[상기 반응식 1에서, L1, Z, R1 내지 R4, m, a, b, c 및 d는 화학식 1에서의 정의와 동일하고, Hal는 할로겐이다.][In Reaction Scheme 1, L 1 , Z, R 1 to R 4 , m, a, b, c and d are the same as defined in Formula 1, and Hal is halogen.]

또한, 본 발명은 유기 전계 발광 소자를 제공하며, 본 발명에 따른 유기 전계 발광 소자는 제1전극; 제2전극; 및 상기 제1전극 및 제2전극 사이에 개재되는 1층 이상의 유기물층으로 이루어진 유기 전계 발광 소자에 있어서, 상기 유기물층은 상기 화학식 1의 유기 발광 화합물을 하나 이상 포함하는 것을 특징으로 한다. 상기 유기물층은 발광층을 포함하고, 상기 발광층에서 상기 화학식 1의 유기 발광 화합물은 호스트 물질로 사용되어진다. In addition, the present invention provides an organic electroluminescent device, the organic electroluminescent device according to the present invention comprises a first electrode; A second electrode; And at least one organic material layer interposed between the first electrode and the second electrode, wherein the organic material layer includes at least one organic light emitting compound of Formula 1. The organic layer includes a light emitting layer, and the organic light emitting compound of Formula 1 is used as a host material in the light emitting layer.

상기 발광층에서 상기 화학식 1의 유기 발광 화합물이 호스트로 사용되어질 때 하나 이상의 인광 도판트를 포함하는 것을 특징으로 한다. 본 발명의 유기 전계 발광 소자에 적용되는 인광 도판트는 특별히 제한되지는 않으나, 본 발명의 유기 전계 발광 소자에 적용되는 인광 도판트는 하기 화학식 2로 표시되는 화합물로부터 선택되는 것이 바람직하다.When the organic light emitting compound of Formula 1 is used as a host in the light emitting layer is characterized in that it comprises at least one phosphorescent dopant. The phosphorescent dopant applied to the organic electroluminescent device of the present invention is not particularly limited, but the phosphorescent dopant applied to the organic electroluminescent device of the present invention is preferably selected from compounds represented by the following Chemical Formula 2.

[화학식 2][Formula 2]

MM 1One LL 101101 LL 102102 LL 103103

[상기 화학식 2에서,[In the formula (2)

여기서 M1은 Ir, Pt, Pd 및 Os으로 이루어진 군으로부터 선택되고,Wherein M 1 is selected from the group consisting of Ir, Pt, Pd and Os,

리간드 L101, L102 및 L103 는 서로 독립적으로 하기 구조로부터 선택되어진다.The ligands L 101 , L 102 and L 103 are independently selected from the following structures.

Figure pat00028
Figure pat00028

Figure pat00029
Figure pat00029

Figure pat00030
Figure pat00030

Figure pat00031
Figure pat00031

R201 내지 R203은 서로 독립적으로 수소, 중수소, 할로겐이 치환되거나 치환되지 않은 (C1-C30)알킬, (C1-C30)알킬이 치환되거나 치환되지 않은 (C6-C30)아릴 또는 할로겐이고;R 201 to R 203 independently represent hydrogen, deuterium, (C 1 -C 30) alkyl in which the halogen is optionally substituted (C 1 -C 30) alkyl, (C 6 -C 30) aryl or halogen in which the (C 1 -C 30) alkyl is optionally substituted;

R204 내지 R219는 서로 독립적으로 수소, 중수소, 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C1-C30)알콕시, 치환 또는 비치환된(C3-C30)시클로알킬, 치환 또는 비치환된(C2-C30)알케닐, 치환 또는 비치환된(C6-C30)아릴, 치환 또는 비치환된 모노 또는 디-(C1-C30)알킬아미노, 치환 또는 비치환된 모노 또는 디-(C6-C30)아릴아미노, SF5, 치환 또는 비치환된 트리(C1-C30)알킬실릴, 치환 또는 비치환된 디(C1-C30)알킬(C6-C30)아릴실릴, 치환 또는 비치환된 트리(C6-C30)아릴실릴, 시아노 또는 할로겐이고;R 204 to R 219 are each independently hydrogen, deuterium, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C1-C30) alkoxy, substituted or unsubstituted (C3-C30) cycloalkyl, Substituted or unsubstituted (C2-C30) alkenyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted mono or di- (C1-C30) alkylamino, substituted or unsubstituted mono or di -(C6-C30) arylamino, SF 5 , substituted or unsubstituted tri (C1-C30) alkylsilyl, substituted or unsubstituted di (C1-C30) alkyl (C6-C30) arylsilyl, substituted or unsubstituted Tri (C6-C30) arylsilyl, cyano or halogen;

R220 내지 R223는 서로 독립적으로 수소, 중수소, 할로겐이 치환되거나 치환되지 않은 (C1-C30)알킬, 또는 (C1-C30)알킬이 치환되거나 치환되지 않은 (C6-C30)아릴이고;R 220 to R 223 independently of one another are hydrogen, deuterium, (C 1 -C 30) alkyl in which the halogen is unsubstituted or substituted, or (C 6 -C 30) aryl in which (C 1 -C 30) alkyl is unsubstituted or substituted;

R224 및 R225는 서로 독립적으로 수소, 중수소, 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C6-C30)아릴 또는 할로겐이거나, R224와 R225는 융합고리를 포함하거나 포함하지 않는 (C3-C12)알킬렌 또는 (C3-C12)알케닐렌으로 연결되어 지환족 고리 및 단일환 또는 다환의 방향족 고리를 형성하며; R 224 and R 225 are independently of each other hydrogen, deuterium, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl or halogen, or R 224 and R 225 contain fused rings Linked with (C3-C12) alkylene or (C3-C12) alkenylene with or without formation to form an alicyclic ring and a monocyclic or polycyclic aromatic ring;

R226은 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C6-C30)아릴, 치환 또는 비치환된(C2-C30)헤테로아릴 또는 할로겐이고;R 226 is substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted (C2-C30) heteroaryl or halogen;

R227 내지 R229은 서로 독립적으로 수소, 중수소, 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C6-C30)아릴 또는 할로겐이고;R 227 to R 229 are each independently hydrogen, deuterium, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl or halogen;

Q는

Figure pat00032
,
Figure pat00033
또는
Figure pat00034
이며, R231 내지 R242는 서로 독립적으로 수소, 중수소, 할로겐이 치환되거나 치환되지 않은 (C1-C30)알킬, (C1-C30)알콕시, 할로겐, 치환 또는 비치환된(C6-C30)아릴, 시아노, 치환 또는 비치환된(C5-C30)시클로알킬이거나, 인접한 치환체와 알킬렌 또는 알케닐렌으로 연결되어 스피로 고리 또는 융합고리를 형성할 수 있거나, R207 또는 R208과 알킬렌 또는 알케닐렌으로 연결되어 포화 또는 불포화의 융합고리를 형성할 수 있다.]Q is
Figure pat00032
,
Figure pat00033
or
Figure pat00034
R 231 to R 242 are each independently of the other hydrogen, deuterium, (C1-C30) alkyl, (C1-C30) alkoxy, halogen, substituted or unsubstituted (C6-C30) aryl, Cyano, substituted or unsubstituted (C5-C30) cycloalkyl, or may be linked to adjacent substituents with alkylene or alkenylene to form a spiro ring or fused ring, or with R 207 or R 208 and alkylene or alkenylene To form a saturated or unsaturated fused ring.]

구체적으로 상기 화학식 2의 도판트 화합물로서 다음과 같은 화합물을 사용하는 것이 바람직하다. Specifically, it is preferable to use the following compounds as the dopant compound of Chemical Formula 2.

Figure pat00035
Figure pat00035

Figure pat00036
Figure pat00036

Figure pat00037
Figure pat00037

Figure pat00038
Figure pat00038

Figure pat00039
Figure pat00039

Figure pat00040
Figure pat00040

Figure pat00041
Figure pat00041

본 발명의 유기 전계 발광 소자는 화학식 1의 유기 발광 화합물을 포함하고, 이와 동시에 아릴아민계 화합물 또는 스티릴아릴아민계 화합물로 이루어진 군으로부터 선택된 하나 이상의 화합물을 더 포함할 수 있다. The organic electroluminescent device of the present invention includes an organic light emitting compound of Formula 1, and may further include at least one compound selected from the group consisting of an arylamine compound or a styrylarylamine compound.

또한, 본 발명의 유기 전계 발광 소자에 있어서, 유기물층에 상기 화학식 1의 유기 발광 화합물 이외에 1족, 2족, 4주기, 5주기 전이금속, 란탄계열금속 및 d-전이원소의 유기금속으로 이루어진 군으로부터 선택되는 하나 이상의 금속 또는 착체화합물을 더 포함할 수도 있고, 상기 유기물층은 발광층 및 전하생성층을 포함할 수 있다.In addition, in the organic electroluminescent device of the present invention, in the organic material layer, in addition to the organic light emitting compound of Chemical Formula 1, a group consisting of Group 1, Group 2, 4 cycle, 5 cycle transition metal, lanthanide series metal and organic metal of d-transition element It may further comprise one or more metals or complex compounds selected from, the organic material layer may include a light emitting layer and a charge generating layer.

또한, 상기 유기물층은 상기 유기 발광 화합물 이외에 청색, 적색 또는 녹색 발광 화합물을 포함하는 유기발광층 하나 이상을 동시에 포함하여 백색 발광을 하는 유기 전계 발광 소자를 형성할 수 있다. In addition, the organic material layer may simultaneously include one or more organic light emitting layers including blue, red, or green light emitting compounds in addition to the organic light emitting compound to form an organic light emitting device that emits white light.

본 발명의 유기 전계 발광 소자에 있어서, 한 쌍의 전극의 적어도 한쪽의 내측표면에, 칼코제나이드(chalcogenide)층, 할로겐화 금속층 및 금속 산화물층으로부터 선택되는 일층(이하, 이들을 “표면층”이라고 지칭함) 이상을 배치하는 것이 바람직하다. 구체적으로는, 발광 매체층 측의 양극 표면에 규소 및 알루미늄의 금속의 칼코제나이드(산화물을 포함한다)층을, 또한 발광매체층 측의 음극 표면에 할로겐화 금속층 또는 금속 산화물층을 배치하는 것이 바람직하다. 이것에 의해 구동의 안정화를 얻을 수 있다. 상기 칼코제나이드의 바람직한 예로는 SiOX(1≤X≤2), AlOX(1≤X≤1.5), SiON 또는 SiAlON 등이 있고, 할로겐화 금속의 바람직한 예로는 LiF, MgF2, CaF2, 불화 희토류 금속 등이 있으며, 금속 산화물의 바람직한 예로는 Cs2O, Li2O, MgO, SrO, BaO, CaO 등이 있다.In the organic electroluminescent device of the present invention, one layer selected from a chalcogenide layer, a metal halide layer and a metal oxide layer (hereinafter referred to as " surface layer ") is formed on the inner surface of at least one of the pair of electrodes, Or more. Concretely, it is preferable to dispose a halogenated metal layer or a metal oxide layer on the surface of the anode on the side of the light emitting medium layer and on the surface of the cathode on the side of the light emitting medium layer, with a chalcogenide (including oxide) layer of a metal of silicon and aluminum Do. Thus, stabilization of the drive can be obtained. Preferred examples of the chalcogenide include SiO X (1 ≦ X ≦ 2 ), AlO X (1 ≦ X ≦ 1.5), SiON or SiAlON, and preferred examples of the halogenated metal include LiF, MgF 2 , CaF 2 , and fluoride. Rare earth metals and the like, and preferred examples of the metal oxides include Cs 2 O, Li 2 O, MgO, SrO, BaO, CaO, and the like.

또한, 본 발명의 유기 전계 발광 소자에 있어서, 이렇게 제작된 한 쌍의 전극의 적어도 한쪽의 표면에 전자 전달 화합물과 환원성 도판트의 혼합 영역 또는 정공 전달 화합물과 산화성 도판트의 혼합 영역을 배치하는 것도 바람직하다. 이러한 방식에 의해 전자 전달 화합물이 음이온으로 환원되므로 혼합 영역으로부터 발광 매체에 전자를 주입 및 전달하기 용이해진다. 또한, 정공 전달 화합물은 산화되어 양이온으로 되므로 혼합 영역으로부터 발광 매체에 정공을 주입 및 전달하기 용이해진다. 바람직한 산화성 도판트로서는 각종 루이스산 및 억셉터(acceptor) 화합물을 들 수 있고, 바람직한 환원성 도판트로는 알칼리 금속, 알칼리 금속 화합물, 알칼리 토류 금속, 희토류 금속 및 이들의 혼합물을 들 수 있다. 또한 환원성 도판트층을 전하생성층으로 사용하여 두 개 이상의 발광층을 가진 백색 유기 전계 발광소자를 제작할 수 있다.In addition, in the organic electroluminescent device of the present invention, a mixed region of the electron transfer compound and the reducing dopant or a mixed region of the hole transport compound and the oxidative dopant is disposed on at least one surface of the pair of electrodes thus fabricated desirable. In this way, the electron transfer compound is reduced to an anion, thereby facilitating injection and transfer of electrons from the mixed region to the light emitting medium. In addition, since the hole transport compound is oxidized to become a cation, it is easy to inject and transfer holes from the mixed region to the light emitting medium. Preferred oxidative dopants include various Lewis acids and acceptor compounds. Preferred reducing dopants include alkali metals, alkali metal compounds, alkaline earth metals, rare earth metals, and mixtures thereof. In addition, a white organic electroluminescent device having two or more light emitting layers may be manufactured using a reducing dopant layer as a charge generating layer.

본 발명에 따른 유기 발광 화합물은 전자전달 효율이 높아 소자 제작시 결정화를 방지할 뿐만 아니라 층 형성이 양호하여 소자의 전류특성을 개선시킴으로서 소자의 구동전압을 저하시키고 동시에 전력효율이 향상된 OLED 소자를 제조할 수 있는 장점이 있다.The organic light emitting compound according to the present invention has high electron transfer efficiency to prevent crystallization during device fabrication and to improve layer current due to good layer formation, thereby lowering driving voltage of the device and at the same time manufacturing an OLED device having improved power efficiency. There is an advantage to this.

이하에서, 본 발명의 상세한 이해를 위하여 본 발명의 대표 화합물을 들어 본 발명에 따른 유기 발광 화합물, 이의 제조방법 및 소자의 발광특성을 설명한다.Hereinafter, the organic light emitting compound according to the present invention, a method for preparing the same, and light emitting characteristics of the device will be described with reference to a representative compound of the present invention for a detailed understanding of the present invention.

[제조예 1]화합물 35의 제조Preparation Example 1 Preparation of Compound 35

Figure pat00042
Figure pat00042

화합물 compound 1-21-2 의 제조Manufacturing

화합물 1-1 (50g, 247.2 mmol)을 MeCN (50mL)에 녹인 후 NBS (44g, 247.2mmol)을 투입하고 상온에서 하룻동안 교반시켰다. 반응 종결 후 EA로 추출한 후 유기층을 농축시켰다. 실리카 컬럼 정제하여 화합물 1-2 (55.6 g, 80 %)을 얻었다. Compound 1-1 (50 g, 247.2 mmol) was dissolved in MeCN (50 mL), NBS (44 g, 247.2 mmol) was added thereto, and the mixture was stirred at room temperature for one day. After completion of the reaction, the mixture was extracted with EA and the organic layer was concentrated. Silica column purification gave compound 1-2 (55.6 g, 80%).

화합물 compound 1-31-3 의 제조Manufacturing

화합물 1-2 (7.7g, 27.5mmol)을 THF (250mL)에 녹인 다음 -78℃로 냉각시킨 다음, n-부틸리튬(2.5M, in Hexane) (17.6 mL, 44 mmol)을 첨가하고 한 시간 동안 교반시켰다. 동온도에서 B(Oi-Pr)3 (12.6mL, 55 mmol)을 천천히 첨가하고 2시간동안 교반시켰다. 교반이 완료된 다음, 2M HCl을 첨가하여 quenching 한 후 증류수와 EA로 추출한 후 유기층을 농축시켰다. MC와 Hex으로 재결정하여 화합물 1-3 (4.0g, 60 %)를 얻었다. Compound 1-2 (7.7g, 27.5mmol) was dissolved in THF (250mL) and cooled to -78 ° C, then n-butyllithium (2.5M, in Hexane) (17.6 mL, 44 mmol) was added and one hour Was stirred. At the same temperature, B (Oi-Pr) 3 (12.6 mL, 55 mmol) was added slowly and stirred for 2 hours. After stirring was complete, 2M HCl was added, quenched, extracted with distilled water and EA, and the organic layer was concentrated. Recrystallization with MC and Hex gave compound 1-3 (4.0 g, 60%).

화합물 compound 1-41-4 의 제조Manufacturing

화합물 1-3 (4.5g, 18.3mol), 4-브로모아이오도벤젠 (6.73g, 23.8mol), Pd(PPh3)4 (634mg, 0.55mmol) 및 Na2CO3 (5.8g, 54.9mol)을 톨루엔(110mL)/정제수(27mL)에 투입한 후 75℃에서 3시간동안 교반시켰다. 반응 종결 후 정치시켜 수층을 제거하고 유기층을 농축시켰다. 실리카 컬럼 정제하여 화합물 1-4 (3.9g, 60%)을 얻었다.Compound 1-3 (4.5g, 18.3mol), 4-bromoiodobenzene (6.73g, 23.8mol), Pd (PPh 3 ) 4 (634mg, 0.55mmol) and Na 2 CO 3 (5.8 g, 54.9 mol) was added to toluene (110 mL) / purified water (27 mL) and stirred at 75 ° C. for 3 hours. After completion of the reaction, the mixture was left to stand to remove the aqueous layer and the organic layer was concentrated. Silica column purification gave compound 1-4 (3.9 g, 60%).

화합물 compound 1-71-7 의 제조Manufacturing

화합물 1-5 (14g, 48.76mmol), 화합물 1-6 (10g, 40.63mmol), K2CO3 (13.5g, 97.52mmol) 및 Pd(PPh3)4 (2.35g, 2.03mmol)을 톨루엔(200mL)/EtOH(50mL)/정제수(50mL)에 투입한 후 95℃에서 3시간동안 교반시켰다. 반응 종결 후 실온으로 냉각시킨 다음 정치시켜 수층을 제거하고 유기층을 농축시킨 후 MC로 트리터레이션(trituration)하고 여과하여 화합물 1-7 (12g, 72%)을 얻었다. Compound 1-5 (14 g, 48.76 mmol), Compound 1-6 (10 g, 40.63 mmol), K 2 CO 3 (13.5 g, 97.52 mmol) and Pd (PPh 3 ) 4 (2.35 g, 2.03 mmol) were added to toluene ( 200 mL) / EtOH (50 mL) / purified water (50 mL) and stirred at 95 ° C. for 3 hours. After the completion of the reaction, the mixture was cooled to room temperature and left to stand, and the aqueous layer was removed. The organic layer was concentrated, triturated with MC, and filtered to obtain compound 1-7 (12 g, 72%).

화합물 compound 3535 의 제조Manufacturing

화합물 1-4 (3.3g, 9.2mmol), 화합물 1-7 (3.4g, 8.4mmol), Cs2CO3 (8.2g, 25.2mmol), CuI (880mg, 4.62mmol) 및 EDA (Ethylene diamine, 0.6 mL, 8.4 mmol)을 톨루엔 (50mL)에 투입한 후 하룻동안 환류교반시켰다. EA로 추출 후 감압증류한 후 컬럼(MC/Hex) 분리하여 화합물 35 (1.7 g, 29.8 %)를 얻었다.Compound 1-4 (3.3 g, 9.2 mmol), Compound 1-7 (3.4 g, 8.4 mmol), Cs 2 CO 3 (8.2 g, 25.2 mmol), CuI (880 mg, 4.62 mmol) and EDA (Ethylene diamine, 0.6 mL, 8.4 mmol) was added to toluene (50 mL), followed by stirring under reflux for one day. After extraction with EA and distillation under reduced pressure, Compound 35 (1.7 g, 29.8%) was obtained by column (MC / Hex) separation.

MS/FAB found 684.82, calculated 684.26MS / FAB found 684.82, calculated 684.26

[제조예 2] 화합물 42의 제조Preparation Example 2 Preparation of Compound 42

Figure pat00043
Figure pat00043

화합물 compound 2-12-1 의 제조Manufacturing

화합물 1-3 (10g, 40.6mol), 4,4’-다이브로모바이페닐 (38g, 121.9mol), Pd(PPh3)4 (2.3g, 2.03mmol) 및 Na2CO3 (12.9g, 121.9mol)을 톨루엔(244mL)/정제수(60mL)에 투입한 후 75℃에서 3시간동안 교반시켰다. 반응 종결 후 정치시켜 수층을 제거하고 유기층을 농축시켰다. 실리카 컬럼 정제하여 화합물 2-1 (9.5g, 54%)을 얻었다.Compound 1-3 (10g, 40.6mol), 4,4'-dibromobiphenyl (38g, 121.9mol), Pd (PPh 3 ) 4 (2.3g, 2.03mmol) and Na 2 CO 3 (12.9 g, 121.9 mol) was added to toluene (244 mL) / purified water (60 mL) and stirred at 75 ° C. for 3 hours. After completion of the reaction, the mixture was left to stand to remove the aqueous layer and the organic layer was concentrated. Silica column purification gave Compound 2-1 (9.5 g, 54%).

화합물 compound 4242 의 제조Manufacturing

화합물 2-1 (5.0g, 11.5mmol), 화합물 1-7 (4.7g, 11.5mmol), Pd(OAc)2 (129mg, 0.575mmol), 50%P(t-Bu)3 (0.54mL, 2.3mmol) 및 Cs2CO3 (11.2g, 34.5mmol)을 톨루엔(50mL)에 투입한 후 하룻동안 환류교반시켰다. EA로 추출 후 감압증류한 후 컬럼(MC/Hex) 분리하여 화합물 42 (3.5 g, 40 %)를 얻었다.Compound 2-1 (5.0g, 11.5mmol), Compound 1-7 (4.7g, 11.5mmol), Pd (OAc) 2 (129mg, 0.575mmol), 50% P (t-Bu) 3 (0.54mL, 2.3 mmol) and Cs 2 CO 3 (11.2 g, 34.5 mmol) was added to toluene (50 mL) and stirred under reflux for one day. After extraction with EA and distillation under reduced pressure, Compound 42 (3.5 g, 40%) was obtained by column (MC / Hex) separation.

MS/FAB found 760.92, calculated 760.29
MS / FAB found 760.92, calculated 760.29

[실시예 1] 본 발명에 따른 유기 발광 화합물을 이용한 OLED 소자 제작Example 1 Fabrication of an OLED Device Using an Organic Light Emitting Compound According to the Present Invention

본 발명의 발광 재료를 이용한 구조의 OLED 소자를 제작하였다. 우선, OLED용 글래스(삼성-코닝사 제조)로부터 얻어진 투명전극 ITO 박막(15Ω/□)을, 트리클로로에틸렌, 아세톤, 에탄올, 증류수를 순차적으로 사용하여 초음파 세척을 실시한 후, 이소프로판올에 넣어 보관한 후 사용하였다. 다음으로 진공 증착 장비의 기판 홀더에 ITO기판을 장착한 후, 진공 증착장비 내의 셀에 N1,N1'-([1,1'-바이페닐]-4,4'-다이일)비스(N1-(나프탈렌-1-일)-N4,N4-다이페닐벤젠-1,4-다이아민) (N1,N1'-([1,1'-biphenyl]-4,4'-diyl)bis(N1-(naphthalen-1-yl)-N4,N4-diphenylbenzene-1,4-diamine) 을 넣고 챔버 내의 진공도가 10-6 torr에 도달할 때까지 배기시킨 후, 셀에 전류를 인가하여 증발시켜 ITO 기판 위에 60nm 두께의 정공주입층을 증착하였다. 이어서, 진공 증착 장비 내의 다른 셀에 N,N'-다이(4-바이페닐)-N,N'-다이(4-바이페닐)-4,4'-다이아미노바이페닐 (N,N'-di(4-biphenyl)-N,N'-di(4-biphenyl)-4,4'-diaminobiphenyl)을 넣고, 셀에 전류를 인가하여 증발시켜 정공주입층 위에 20nm 두께의 정공전달층을 증착하였다. 정공주입층, 정공전달층을 형성시킨 후, 그 위에 발광층을 다음과 같이 증착시켰다. 진공 증착 장비 내의 한쪽 셀에 호스트로서 화합물 42를 넣고, 또 다른 셀에는 도판트로서 화합물 D-7을 각각 넣은 후, 두 물질을 다른 속도로 증발시켜 4 중량%으로 도핑 함으로서 상기 정공전달층위에 30nm 두께의 발광층을 증착하였다. 이어서 상기 발광층 위에 전자 전달층으로써 한쪽 셀에 2-(4-(9,10-다이(나프탈렌-2-일)안트라센-2-일)페닐)-1-페닐-1H-벤조[d]이미다졸 (2-(4-(9,10-di(naphthalen-2-yl)anthracen-2-yl)phenyl)-1-phenyl-1H-benzo[d]imidazole)을 넣고, 또 다른 셀에는 리튬 퀴놀레이트(Lithium quinolate)를 각각 넣은 후, 두 물질을 같은 속도로 증발시켜 50 중량%으로 도핑 함으로서 30nm의 전자 전달층을 증착하였다. 이어서 전자 주입층으로 리튬 퀴놀레이트(Lithium quinolate)를 2nm 두께로 증착한 후, 다른 진공 증착장비를 이용하여 Al 음극을 150nm의 두께로 증착하여 OLED 소자를 제작하였다. 재료 별로 각 화합물은 10-6 torr 하에서 진공 승화 정제하여 사용하였다.An OLED device having a structure using the light emitting material of the present invention was produced. First, a transparent electrode ITO thin film (15? /?) Obtained from a glass for OLED (manufactured by Samsung Corning) was ultrasonically cleaned using trichlorethylene, acetone, ethanol and distilled water sequentially and stored in isopropanol Respectively. Next, the ITO substrate is mounted on the substrate holder of the vacuum deposition apparatus, and then N 1 , N 1 ′ -([1,1′-biphenyl] -4,4′-diyl) bis ( N 1-(naphthalen- 1 -yl) -N 4 , N 4 -diphenylbenzene-1,4-diamine) (N 1 , N 1 ' -([1,1'-biphenyl] -4,4' -diyl) bis (N 1- (naphthalen-1-yl) -N 4 , N 4 -diphenylbenzene-1,4-diamine) was added and evacuated until the vacuum in the chamber reached 10 -6 torr. A current was applied and evaporated to deposit a 60 nm thick hole injection layer on the ITO substrate, followed by N, N'-die (4-biphenyl) -N, N'-die (4) in another cell in the vacuum deposition equipment. -Biphenyl) -4,4'-diaminobiphenyl (N, N'-di (4-biphenyl) -N, N'-di (4-biphenyl) -4,4'-diaminobiphenyl) is added thereto, and the cell A current was applied and evaporated to deposit a 20 nm-thick hole transport layer on the hole injection layer After the hole injection layer and the hole transport layer were formed, the light emitting layer was deposited thereon as follows. Into the compound 42 as a host in one cell in the deposition equipment, and other cells, and then as the dopant into the compound D-7, respectively, by evaporating two materials at different rates to 30nm thick on the hole transport layer by doping with 4% by weight A light emitting layer was deposited on the light emitting layer, and then 2- (4- (9,10-di (naphthalen-2-yl) anthracen-2-yl) phenyl) -1-phenyl-1H- Benzo [d] imidazole (2- (4- (9,10-di (naphthalen-2-yl) anthracen-2-yl) phenyl) -1-phenyl-1H-benzo [d] imidazole) Lithium quinolate was added to the other cells, and the 30 nm electron transport layer was deposited by evaporating both materials at the same rate and doping at 50 wt%, followed by lithium quinolate as the electron injection layer. Is deposited to a thickness of 2nm, using another vacuum deposition equipment to deposit an Al cathode to a thickness of 150nm to remove the OLED device. It was. Each compound was used by vacuum sublimation purification under 10 -6 torr.

그 결과, 3.9 V의 전압에서 7.7 mA/cm2의 전류가 흘렀으며, 1060 cd/m2의 적색발광이 확인되었다. 5000nit의 휘도에서 발광이 90%로 떨어지는데 걸린 시간이 130시간 이상이었다. As a result, a current of 7.7 mA / cm 2 flowed at a voltage of 3.9 V, and red light emission of 1060 cd / m 2 was observed. It took more than 130 hours for the light emission to drop to 90% at a brightness of 5000 nits.

[실시예 2] 본 발명에 따른 유기 발광 화합물을 이용한 OLED 소자 제작Example 2 Fabrication of an OLED Device Using an Organic Light Emitting Compound According to the Present Invention

발광재료로서 호스트에는 화합물 35, 도판트에는 화합물 D-7을 사용한 것 외에는 실시예 1과 동일한 방법으로 OLED소자를 제작하였다.An OLED device was manufactured in the same manner as in Example 1, except that Compound 35 was used as a light emitting material and Compound D-7 was used as a dopant.

그 결과, 3.8 V의 전압에서 7.5 mA/cm2의 전류가 흘렀으며, 1020 cd/m2의 적색발광이 확인되었다. 5000nit의 휘도에서 발광이 90%로 떨어지는데 걸린 시간이 130시간 이상이었다.As a result, a current of 7.5 mA / cm 2 flowed at a voltage of 3.8 V, and red light emission of 1020 cd / m 2 was confirmed. It took more than 130 hours for the light emission to drop to 90% at a brightness of 5000 nits.

[비교예 1] 종래에 발광재료를 이용한 OLED 소자 제작[Comparative Example 1] Fabrication of OLED device using light emitting material

발광재료로서 호스트에는 4,4‘-N,N'-다이카바졸-바이페닐 (4,4‘-N,N'-dicarbazole-biphenyl)을 이용하고, 도판트에는 화합물 D-11을 사용하여 발광층을 증착하고, 발광층과 전자 전달층 사이에 정공 저지층으로 알루미늄(III)비스(2-메틸-8-퀴놀리네이토)4-페닐페놀레이트 (aluminum(III)bis(2-methyl-8-quinolinato)4-phenylphenolate)을 10nm 두께로 증착한 것 외에는 실시예 1과 동일한 방법으로 OLED소자를 제작하였다.4,4'-N, N'-dicarbazole-biphenyl (4,4'-N, N'-dicarbazole-biphenyl) is used as a light emitting material and compound D-11 is used as a dopant. A light emitting layer was deposited and aluminum (III) bis (2-methyl-8-quinolinate) 4-phenylphenolate (aluminum (III) bis (2-methyl-8) was used as a hole blocking layer between the light emitting layer and the electron transporting layer. OLED device was manufactured in the same manner as in Example 1, except that -quinolinato) 4-phenylphenolate) was deposited to a thickness of 10 nm.

그 결과, 8.2 V의 전압에서 20.4 mA/cm2의 전류가 흘렀으며, 1000 cd/m2의 적색발광이 확인되었다. 5000nit의 휘도에서 발광이 90%로 떨어지는 시간이 10시간 이상이었다.
As a result, a current of 20.4 mA / cm 2 flowed at a voltage of 8.2 V, and red light emission of 1000 cd / m 2 was confirmed. At the luminance of 5000 nits, the time when the light emission dropped to 90% was 10 hours or more.

본 발명에서 개발한 유기 발광 화합물들은 발광특성이 종래의 재료대비 우수한 것을 확인할 수 있었다. 또한 본 발명에 따른 유기 발광 화합물을 발광용 호스트 재료로 사용한 소자는 구동전압이 낮아지는 효과가 있어서 소비전력을 향상시킬 수 있었고, 발광 효율과 수명특성이 좋은 소자를 제작할 수 있었다.The organic light emitting compounds developed in the present invention was confirmed that the light emission characteristics are superior to conventional materials. In addition, the device using the organic light emitting compound according to the present invention as a light emitting host material has the effect of lowering the driving voltage can improve the power consumption, it was possible to manufacture a device with good luminous efficiency and life characteristics.

Claims (10)

하기 화학식 1로 표시되는 유기 발광 화합물.
[화학식 1]
Figure pat00044

[상기 화학식 1에서,
Z는
Figure pat00045
또는
Figure pat00046
이고;
L1은 단일결합, 치환 또는 비치환된 (C2-C30)헤테로아릴렌, 또는 치환 또는 비치환된 (C6-C30)아릴렌이고;
X는 -O-, -S-, -CR11R12-또는 -NR13-이고;
R11 내지 R13은 각각 독립적으로 치환 또는 비치환된 (C1-C30)알킬, 치환 또는 비치환된 (C6-C30)아릴, 또는 치환 또는 비치환된 (C2-C30)헤테로아릴이고;
R1 내지 R6은 각각 독립적으로 수소, 중수소, 할로겐, 치환 또는 비치환된 (C1-C30)알킬, 치환 또는 비치환된 (C6-C30)아릴, 치환 또는 비치환된 (C2-C30)헤테로아릴, 치환 또는 비치환된 (C3-C30)시클로알킬, 치환 또는 비치환된 5원 내지 7원의 헤테로시클로알킬, 치환 또는 비치환된 (C6-C30)아르(C1-C30)알킬, (C3-C30)시클로알킬이 하나 이상 융합된 치환 또는 비치환된 (C6-C30)아릴, 치환 또는 비치환된 방향족 고리가 하나 이상 융합된 5원 내지 7원의 헤테로시클로알킬, 치환 또는 비치환된 방향족 고리가 하나 이상 융합된 (C3-C30)시클로알킬, -NR14R15, -SiR16R17R18, -SR19, -OR20 , (C2-C30)알케닐, (C2-C30)알키닐, 시아노 또는 니트로이고;
R14 내지 R20는 각각 독립적으로 수소, 중수소, 할로겐, 치환 또는 비치환된 (C1-C30)알킬, 치환 또는 비치환된 (C6-C30)아릴, 치환 또는 비치환된 (C2-C30)헤테로아릴이거나, 인접한 치환체와 융합고리를 포함하거나 포함하지 않는 치환 또는 비치환된 (C3-C30)알킬렌 또는 치환 또는 비치환된 (C3-C30)알케닐렌으로 연결되어 지환족 고리 및 단일환 또는 다환의 방향족 고리를 형성할 수 있으며, 상기 형성된 지환족 고리 및 단일환 또는 다환의 방향족 고리의 탄소 원자는 질소, 산소 및 황으로부터 선택되는 하나 이상의 헤테로원자로 치환될 수 있으며;
a, d, e 및 g는 각각 독립적으로 1 내지 4의 정수로, 2 이상의 정수인 경우 동일하거나 상이할 수 있고;
b 및 f는 각각 독립적으로 1 내지 3의 정수로, 2 이상의 정수인 경우 동일하거나 상이할 수 있고;
c는 1 내지 5의 정수로, 2 이상의 정수인 경우 동일하거나 상이할 수 있고;
m은 1, 2 또는 3의 정수이고;
상기 헤테로시클로알킬, 헤테로아릴렌 및 헤테로아릴은 B, N, O, S, P(=O), Si 및 P로부터 선택된 하나 이상의 헤테로원자를 포함한다.]An organic light emitting compound represented by Formula 1 below.
[Formula 1]
Figure pat00044

[In the above formula (1)
Z is
Figure pat00045
or
Figure pat00046
ego;
L 1 is a single bond, substituted or unsubstituted (C2-C30) heteroarylene, or substituted or unsubstituted (C6-C30) arylene;
X is —O—, —S—, —CR 11 R 12 —or —NR 13 —;
R 11 to R 13 are each independently substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, or substituted or unsubstituted (C2-C30) heteroaryl;
R 1 to R 6 are each independently hydrogen, deuterium, halogen, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted (C2-C30) hetero Aryl, substituted or unsubstituted (C3-C30) cycloalkyl, substituted or unsubstituted 5- to 7-membered heterocycloalkyl, substituted or unsubstituted (C6-C30) ar (C1-C30) alkyl, (C3 Substituted or unsubstituted (C6-C30) aryl wherein one or more cycloalkyl is fused, 5- to 7-membered heterocycloalkyl, substituted or unsubstituted aromatic, wherein one or more substituted or unsubstituted aromatic rings are fused. (C3-C30) cycloalkyl, at least one ring fused, -NR 14 R 15 , -SiR 16 R 17 R 18 , -SR 19 , -OR 20 , (C2-C30) alkenyl, (C2-C30) alky Niel, cyano or nitro;
R 14 to R 20 are each independently hydrogen, deuterium, halogen, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted (C2-C30) hetero A cycloaliphatic ring and a monocyclic ring or a polycyclic ring which is connected to a substituted or unsubstituted (C3-C30) alkylene or a substituted or unsubstituted (C3-C30) alkenylene, which is aryl or does not include or include a fused ring with adjacent substituents. An aromatic ring of the ring may be formed, and the carbon atoms of the alicyclic ring and the monocyclic or polycyclic aromatic ring formed may be substituted with one or more heteroatoms selected from nitrogen, oxygen, and sulfur;
a, d, e and g are each independently an integer of 1 to 4, and may be the same or different when two or more integers;
b and f are each independently an integer of 1 to 3, and may be the same or different when two or more integers;
c is an integer of 1 to 5, and may be the same or different when it is an integer of 2 or more;
m is an integer of 1, 2 or 3;
Wherein said heterocycloalkyl, heteroarylene and heteroaryl include one or more heteroatoms selected from B, N, O, S, P (= 0), Si and P.] 제 1항에 있어서,
상기 L1, R1 내지 R6 및 R11 내지 R20에 더 치환되는 치환기는 서로 독립적으로 중수소, 할로겐, (C1-C30)알킬, 할로겐이 치환된 (C1-C30)알킬, (C6-C30)아릴, (C2-C30)헤테로아릴, (C6-C30)아릴이 치환된 (C2-C30)헤테로아릴, 5원 내지 7원의 헤테로시클로알킬, (C3-C30)시클로알킬, 트리(C1-C30)알킬실릴, 트리(C6-C30)아릴실릴, 디(C1-C30)알킬(C6-C30)아릴실릴, (C1-C30)알킬디(C6-C30)아릴실릴, (C2-C30)알케닐, (C2-C30)알키닐, 시아노, N-카바졸릴, N-벤조카바졸릴, N-다이벤조카바졸릴, 디(C1-C30)알킬아미노, 디(C6-C30)아릴아미노, (C1-C30)알킬(C6-C30)아릴아미노, 디(C6-C30)아릴보로닐, 디(C1-C30)알킬보로닐, (C1-C30)알킬(C6-C30)아릴보로닐, (C6-C30)아르(C1-C30)알킬, (C1-C30)알킬(C6-C30)아릴, 카르복실, 니트로 및 히드록시로 이루어진 군으로부터 선택되는 하나 이상인 것을 특징으로 하는 유기 발광 화합물.The method of claim 1,
Substituents further substituted with L 1 , R 1 to R 6 and R 11 to R 20 independently of each other deuterium, halogen, (C1-C30) alkyl, (C1-C30) alkyl substituted with halogen, (C6-C30 ) Aryl, (C2-C30) heteroaryl, (C2-C30) heteroaryl substituted with (C6-C30) aryl, 5- to 7-membered heterocycloalkyl, (C3-C30) cycloalkyl, tri (C1- C30) alkylsilyl, tri (C6-C30) arylsilyl, di (C1-C30) alkyl (C6-C30) arylsilyl, (C1-C30) alkyldi (C6-C30) arylsilyl, (C2-C30) al Kenyl, (C2-C30) alkynyl, cyano, N-carbazolyl, N-benzocarbazolyl, N-dibenzocarbazolyl, di (C1-C30) alkylamino, di (C6-C30) arylamino, ( C1-C30) alkyl (C6-C30) arylamino, di (C6-C30) arylboronyl, di (C1-C30) alkylboronyl, (C1-C30) alkyl (C6-C30) arylboronyl And (C6-C30) arylene (C1-C30) alkyl, (C1-C30) alkyl (C6-C30) aryl, carboxyl, nitro and hydroxy, at least one selected from the group consisting of an organic light emitting compound . 제 1항에 있어서,
상기 L1은 단일결합, (C2-C30)헤테로아릴렌 또는 (C6-C30)아릴렌이고; X는 -O-, -S-, -CR11R12- 또는 -NR13-이고; R11 내지 R13은 각각 독립적으로 (C1-C30)알킬, (C6-C30)아릴 또는 (C2-C30)헤테로아릴이고; R1 내지 R6은 각각 독립적으로 수소, 중수소, 할로겐, (C1-C30)알킬, (C6-C30)아릴, (C2-C30)헤테로아릴 또는 카바졸릴이고; m은 1 또는 2의 정수이고; 상기 L1의 헤테로아릴렌 및 아릴렌, R1 내지 R6 및 R11 내지 R13의 알킬, 아릴 및 헤테로아릴은 각각 중수소, 할로겐, (C1-C30)알킬, 할로겐이 치환된 (C1-C30)알킬, (C6-C30)아릴, (C2-C30)헤테로아릴, 트리(C1-C30)알킬실릴, 트리(C6-C30)아릴실릴, 디(C1-C30)알킬(C6-C30)아릴실릴, (C1-C30)알킬디(C6-C30)아릴실릴, N-카바졸릴, N-벤조카바졸릴 및 N-다이벤조카바졸릴로 이루어진 군으로부터 선택되는 하나 이상으로 더 치환될 수 있는 것을 특징으로 하는 유기 발광 화합물.The method of claim 1,
L 1 is a single bond, (C2-C30) heteroarylene or (C6-C30) arylene; X is -O-, -S-, -CR 11 R 12 -or -NR 13- ; R 11 to R 13 are each independently (C 1 -C 30) alkyl, (C 6 -C 30) aryl or (C 2 -C 30) heteroaryl; R 1 to R 6 are each independently hydrogen, deuterium, halogen, (C1-C30) alkyl, (C6-C30) aryl, (C2-C30) heteroaryl or carbazolyl; m is an integer of 1 or 2; Heteroarylene and arylene of L 1 , alkyl, aryl and heteroaryl of R 1 to R 6 and R 11 to R 13 are each deuterium, halogen, (C 1 -C 30) alkyl, halogen substituted (C 1 -C 30) ) Alkyl, (C6-C30) aryl, (C2-C30) heteroaryl, tri (C1-C30) alkylsilyl, tri (C6-C30) arylsilyl, di (C1-C30) alkyl (C6-C30) arylsilyl , (C1-C30) alkyldi (C6-C30) arylsilyl, N-carbazolyl, N-benzocarbazolyl and N-dibenzocarbazolyl, and may be further substituted with one or more selected from the group consisting of Organic light emitting compound. 제 3항에 있어서,
상기 L1은 단일결합, 페닐렌, 나프틸렌, 비페닐렌, 터페닐렌, 안트릴렌, 안데닐렌, 플루오레닐렌, 페난트릴렌, 트리페닐레닐렌, 피렌일렌, 페릴렌일렌, 크라이세닐렌, 나프타세닐렌, 플루오란텐일, 페닐렌-나프틸렌, 퓨릴렌, 티오페닐렌, 피롤릴렌, 이미다졸릴렌, 피라졸릴렌, 티아졸릴렌, 티아디아졸릴렌, 이소티아졸릴렌, 이속사졸릴렌, 옥사졸릴렌, 옥사디아졸릴렌, 트리아진일렌, 테트라진일렌, 트리아졸릴렌, 퓨라잔일렌, 피리딜렌, 피라진일렌, 피리미딘일렌, 피리다진일렌, 벤조퓨란일렌, 벤조티오펜일렌, 이소벤조퓨란일렌, 벤조이미다졸릴렌, 벤조티아졸릴렌, 벤조이소티아졸릴렌, 벤조이속사졸릴렌, 벤조옥사졸릴렌, 이소인돌릴렌, 인돌릴렌, 인다졸릴렌, 벤조티아디아졸릴렌, 퀴놀릴렌, 이소퀴놀릴렌, 신놀리닐렌, 퀴나졸리닐렌, 퀴녹살리닐렌, 카바졸릴렌, 페난트리딘일렌, 벤조디옥솔릴렌, 다이벤조퓨란닐렌 또는 다이벤조싸이오페닐렌인 것을 특징으로 하는 유기 발광 화합물.The method of claim 3, wherein
L 1 is a single bond, phenylene, naphthylene, biphenylene, terphenylene, anthylene, andenylene, fluorenylene, phenanthryl, triphenylenylene, pyrenylene, peryleneylene, chrysenyl Lene, naphthasenylene, fluoranthenyl, phenylene-naphthylene, furylene, thiophenylene, pyrroylene, imidazoylene, pyrazolylene, thiazolylene, thiadiazolylene, isothiazolylene, isox Sazolylene, oxazolylene, oxadiazolylene, triazineylene, tetrazinylene, triazolylene, furazylene, pyridylene, pyrazinylene, pyrimidineylene, pyridazineylene, benzofuranylene, benzothiophene Ylene, isobenzofuranylene, benzoimidazolylene, benzothiazolylene, benzoisothiazolylene, benzoisoxazolylene, benzooxazolylene, isoindoleylene, indolylene, indazolene, benzothiadiazolyl Ylene, quinolinylene, isoquinolinylene, cinnolinylene, quinazolinylene, quinoxalinylene , Carbazolylene, phenanthridinylene, benzodioxoleylene, dibenzofuranylene or dibenzothiophenylene. 제 1항에 있어서,
하기 화합물로부터 선택되는 유기 발광 화합물.
Figure pat00047

Figure pat00048

Figure pat00049

Figure pat00050

Figure pat00051

Figure pat00052

Figure pat00053

Figure pat00054

Figure pat00055

Figure pat00056

Figure pat00057

Figure pat00058

Figure pat00059

Figure pat00060

Figure pat00061

Figure pat00062

Figure pat00063

Figure pat00064

Figure pat00065

Figure pat00066

Figure pat00067
The method of claim 1,
An organic light-emitting compound selected from the following compounds.
Figure pat00047

Figure pat00048

Figure pat00049

Figure pat00050

Figure pat00051

Figure pat00052

Figure pat00053

Figure pat00054

Figure pat00055

Figure pat00056

Figure pat00057

Figure pat00058

Figure pat00059

Figure pat00060

Figure pat00061

Figure pat00062

Figure pat00063

Figure pat00064

Figure pat00065

Figure pat00066

Figure pat00067
 제 1항 내지 제 5항 중 어느 한 항의 유기 발광 화합물을 포함하는 것을 특징으로 하는 유기 전계 발광 소자. An organic electroluminescent device comprising the organic light emitting compound of any one of claims 1 to 5. 제 6항에 있어서,
상기 유기 전계 발광 소자가 제1전극; 제2전극; 및 상기 제1전극과 제2전극 사이에 개재되는 1층 이상의 유기물층을 가지며, 이 유기물층이 상기 유기 발광 화합물 중 하나 이상과 하기 화학식 2로 표시되는 인광 도판트 중 하나 이상을 포함하는 것을 특징으로 하는 유기 전계 발광 소자.
[화학식 2]
M 1 L 101 L 102 L 103
[상기 화학식 2에서,
여기서 M1은 Ir, Pt, Pd 및 Os으로 이루어진 군으로부터 선택되고,
리간드 L101, L102 및 L103 는 서로 독립적으로 하기 구조로부터 선택되어진다.
Figure pat00068

Figure pat00069

Figure pat00070

Figure pat00071

R201 내지 R203은 서로 독립적으로 수소, 중수소, 할로겐이 치환되거나 치환되지 않은 (C1-C30)알킬, (C1-C30)알킬이 치환되거나 치환되지 않은 (C6-C30)아릴 또는 할로겐이고;
R204 내지 R219는 서로 독립적으로 수소, 중수소, 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C1-C30)알콕시, 치환 또는 비치환된(C3-C30)시클로알킬, 치환 또는 비치환된(C2-C30)알케닐, 치환 또는 비치환된(C6-C30)아릴, 치환 또는 비치환된 모노 또는 디-(C1-C30)알킬아미노, 치환 또는 비치환된 모노 또는 디-(C6-C30)아릴아미노, SF5, 치환 또는 비치환된 트리(C1-C30)알킬실릴, 치환 또는 비치환된 디(C1-C30)알킬(C6-C30)아릴실릴, 치환 또는 비치환된 트리(C6-C30)아릴실릴, 시아노 또는 할로겐이고;
R220 내지 R223는 서로 독립적으로 수소, 중수소, 할로겐이 치환되거나 치환되지 않은 (C1-C30)알킬, 또는 (C1-C30)알킬이 치환되거나 치환되지 않은 (C6-C30)아릴이고;
R224 및 R225는 서로 독립적으로 수소, 중수소, 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C6-C30)아릴 또는 할로겐이거나, R224와 R225는 융합고리를 포함하거나 포함하지 않는 (C3-C12)알킬렌 또는 (C3-C12)알케닐렌으로 연결되어 지환족 고리 및 단일환 또는 다환의 방향족 고리를 형성하며;
R226은 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C6-C30)아릴, 치환 또는 비치환된(C2-C30)헤테로아릴 또는 할로겐이고;
R227 내지 R229은 서로 독립적으로 수소, 중수소, 치환 또는 비치환된(C1-C30)알킬, 치환 또는 비치환된(C6-C30)아릴 또는 할로겐이고;
Q는
Figure pat00072
,
Figure pat00073
또는
Figure pat00074
이며, R231 내지 R242는 서로 독립적으로 수소, 중수소, 할로겐이 치환되거나 치환되지 않은 (C1-C30)알킬, (C1-C30)알콕시, 할로겐, 치환 또는 비치환된(C6-C30)아릴, 시아노, 치환 또는 비치환된(C5-C30)시클로알킬이거나, 인접한 치환체와 알킬렌 또는 알케닐렌으로 연결되어 스피로 고리 또는 융합고리를 형성할 수 있거나, R207 또는 R208과 알킬렌 또는 알케닐렌으로 연결되어 포화 또는 불포화의 융합고리를 형성할 수 있다.]The method according to claim 6,
The organic electroluminescent device comprises a first electrode; A second electrode; And at least one organic material layer interposed between the first electrode and the second electrode, wherein the organic material layer includes at least one of the organic light emitting compounds and at least one phosphorescent dopant represented by Formula 2 below. Organic electroluminescent device.
(2)
M 1 L 101 L 102 L 103
[In Formula 2,
Wherein M 1 is selected from the group consisting of Ir, Pt, Pd and Os,
The ligands L 101 , L 102 and L 103 are independently selected from the following structures.
Figure pat00068

Figure pat00069

Figure pat00070

Figure pat00071

R 201 to R 203 independently represent hydrogen, deuterium, (C 1 -C 30) alkyl in which the halogen is optionally substituted (C 1 -C 30) alkyl, (C 6 -C 30) aryl or halogen in which the (C 1 -C 30) alkyl is optionally substituted;
R 204 to R 219 are each independently hydrogen, deuterium, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C1-C30) alkoxy, substituted or unsubstituted (C3-C30) cycloalkyl, Substituted or unsubstituted (C2-C30) alkenyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted mono or di- (C1-C30) alkylamino, substituted or unsubstituted mono or di -(C6-C30) arylamino, SF 5 , substituted or unsubstituted tri (C1-C30) alkylsilyl, substituted or unsubstituted di (C1-C30) alkyl (C6-C30) arylsilyl, substituted or unsubstituted Tri (C6-C30) arylsilyl, cyano or halogen;
R 220 to R 223 independently of one another are hydrogen, deuterium, (C 1 -C 30) alkyl in which the halogen is unsubstituted or substituted, or (C 6 -C 30) aryl in which (C 1 -C 30) alkyl is unsubstituted or substituted;
R 224 and R 225 are independently of each other hydrogen, deuterium, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl or halogen, or R 224 and R 225 contain fused rings Linked with (C3-C12) alkylene or (C3-C12) alkenylene with or without formation to form an alicyclic ring and a monocyclic or polycyclic aromatic ring;
R 226 is substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl, substituted or unsubstituted (C2-C30) heteroaryl or halogen;
R 227 to R 229 are each independently hydrogen, deuterium, substituted or unsubstituted (C1-C30) alkyl, substituted or unsubstituted (C6-C30) aryl or halogen;
Q is
Figure pat00072
,
Figure pat00073
or
Figure pat00074
R 231 to R 242 are each independently of the other hydrogen, deuterium, (C1-C30) alkyl, (C1-C30) alkoxy, halogen, substituted or unsubstituted (C6-C30) aryl, Cyano, substituted or unsubstituted (C5-C30) cycloalkyl, or may be linked to adjacent substituents with alkylene or alkenylene to form a spiro ring or fused ring, or with R 207 or R 208 and alkylene or alkenylene To form a saturated or unsaturated fused ring.] 제 7항에 있어서,
상기 인광 도판트는 하기 화합물로부터 선택되는 것인 유기 전계 발광 소자.
Figure pat00075

Figure pat00076

Figure pat00077

Figure pat00078

Figure pat00079

Figure pat00080

Figure pat00081
8. The method of claim 7,
The phosphorescent dopant is selected from the following compounds.
Figure pat00075

Figure pat00076

Figure pat00077

Figure pat00078

Figure pat00079

Figure pat00080

Figure pat00081
 제 7항에 있어서,
상기 유기물층이 아릴아민계 화합물 또는 스티릴아릴아민계 화합물로 이루어진 군으로부터 선택된 하나 이상의 아민계 화합물(A); 1족, 2족, 4주기, 5주기 전이금속, 란탄계열금속 및 d-전이원소의 유기금속으로 이루어진 군으로부터 선택되는 하나 이상의 금속 또는 금속을 포함하는 착체화합물(B); 또는 이들의 혼합물을 포함하는 것인 유기 전계 발광 소자.8. The method of claim 7,
At least one amine compound (A) wherein the organic material layer is selected from the group consisting of an arylamine compound or a styrylarylamine compound; Complex compounds (B) comprising at least one metal or metal selected from the group consisting of Group 1, Group 2, 4 and 5 cycle transition metals, lanthanide series metals and organic metals of d-transition elements; Or an organic electroluminescent device comprising a mixture thereof. 제 7항에 있어서,
상기 유기물층이 청색, 적색 또는 녹색 발광을 하는 유기발광층 하나 이상을 더 포함하여 백색 발광을 하는 것인 유기 전계 발광 소자.8. The method of claim 7,
The organic light emitting device of claim 1, wherein the organic material layer further comprises at least one organic light emitting layer emitting blue, red, or green light.
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