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1. WO2022009883 - HEAT-ACTIVATED DELAYED FLUORESCENCE MATERIAL AND ORGANIC ELECTROLUMINESCENT ELEMENT

Publication Number WO/2022/009883
Publication Date 13.01.2022
International Application No. PCT/JP2021/025469
International Filing Date 06.07.2021
IPC
C09K 11/06 2006.1
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR APPLICATIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
11Luminescent, e.g. electroluminescent, chemiluminescent, materials
06containing organic luminescent materials
H01L 51/50 2006.1
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes (OLED) or polymer light emitting devices (PLED)
CPC
C09K 11/06
CCHEMISTRY; METALLURGY
09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
KMATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
11Luminescent, e.g. electroluminescent, chemiluminescent materials
06containing organic luminescent materials
H01L 51/50
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
LSEMICONDUCTOR DEVICES; ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
51Solid state devices using organic materials as the active part, or using a combination of organic materials with other materials as the active part; Processes or apparatus specially adapted for the manufacture or treatment of such devices, or of parts thereof
50specially adapted for light emission, e.g. organic light emitting diodes [OLED] or polymer light emitting devices [PLED]
Applicants
  • 日鉄ケミカル&マテリアル株式会社 NIPPON STEEL CHEMICAL & MATERIAL CO., LTD. [JP]/[JP]
  • 国立大学法人九州大学 KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATION [JP]/[JP]
Inventors
  • 多田 匡志 TADA Masashi
  • 相良 雄太 SAGARA Yuta
  • 川田 敦志 KAWADA Atsushi
  • 安田 琢麿 YASUDA Takuma
  • 朴 仁燮 PARK In Seob
  • キム ジョンウク KIM Jong Uk
  • 敷田 蒼 SHIKITA So
Agents
  • 佐々木 一也 SASAKI Kazuya
  • 佐野 英一 SANO Eiichi
  • 原 克己 HARA Katsumi
  • 久本 秀治 HISAMOTO Shuji
Priority Data
2020-11800108.07.2020JP
Publication Language Japanese (ja)
Filing Language Japanese (JA)
Designated States
Title
(EN) HEAT-ACTIVATED DELAYED FLUORESCENCE MATERIAL AND ORGANIC ELECTROLUMINESCENT ELEMENT
(FR) MATÉRIAU À FLUORESCENCE RETARDÉE ACTIVÉE PAR LA CHALEUR ET ÉLÉMENT ÉLECTROLUMINESCENT ORGANIQUE
(JA) 熱活性化遅延蛍光材料、及び有機電界発光素子
Abstract
(EN) Provided is a heat-activated delayed fluorescence-type organic EL element that is long lasting and that has high light emission efficiency. An organic EL element comprising a luminous layer between a positive electrode and a negative electrode facing each other, wherein a compound, in which a boron-containing electron acceptor backbone is linked with an electron donor backbone having a specific fused ring structure, is contained as a heat-activated delayed fluorescence material in at least one of the luminous layers, said compound is represented by general formula (1), and X1 in formula (1) represents O or S.
(FR) L'invention concerne un élément électroluminescent organique de type à fluorescence retardée activée par la chaleur qui est durable et qui présente une efficacité d'émission lumineuse élevée. Un élément électroluminescent organique comprend une couche lumineuse entre une électrode positive et une électrode négative se faisant mutuellement face. Un composé, dans lequel un squelette accepteur d'électrons contenant du bore est lié à un squelette donneur d'électrons ayant une structure cyclique fusionnée spécifique, est contenu sous la forme d'un matériau à fluorescence retardée activée par la chaleur dans au moins l'une des couches lumineuses, ledit composé étant représenté par la formule générale (1), et X1 dans la formule (1) représentant O ou S.
(JA) 高発光効率、長寿命な熱活性化遅延蛍光型の有機EL素子を提供する。 対向する陽極と陰極の間に、発光層を含む有機EL素子において、少なくとも1つの発光層に熱活性化遅延蛍光材料として特定の縮環構造を有する電子ドナー骨格と含ホウ素電子アクセプター骨格を連結した化合物を含有するものであり、上記化合物は下記一般式(1)で表され、式(1)中のX1はO又はSである。
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