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Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT MATERIAL AND ORGANIC ELECTROLUMINESCENCE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2021/220838
Kind Code:
A1
Abstract:
Provided are: an organic EL element that has high efficiency and a long lifespan while having a low driving voltage; and an organic electroluminescence element material suitable for same. This organic electroluminescence element material comprises an indolocarbazole compound represented by general formula (1). Here, ring A represents a heterocyclic ring represented by formula (1a), Ar1 and Ar2 are each an aromatic hydrocarbon group, an aromatic heterocyclic group or a linked aromatic group, L2 represents an aromatic heterocyclic group, Ar3 represents an aromatic hydrocarbon group or a linked aromatic group in which a plurality of said aromatic hydrocarbon groups are linked together, and a+b+c≥1 is satisfied.

Inventors:
IKENAGA YUJI (JP)
KAI TAKAHIRO (JP)
YOSHIDA KAZUNARI (JP)
HAYASHI KENTARO (JP)
Application Number:
PCT/JP2021/015655
Publication Date:
November 04, 2021
Filing Date:
April 16, 2021
Export Citation:
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Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
C09K11/06; C07D487/04; H01L51/50; H05B33/10
Domestic Patent References:
WO2010134350A12010-11-25
WO2011070963A12011-06-16
WO2008056746A12008-05-15
WO2013062075A12013-05-02
WO2011136755A12011-11-03
WO2016042997A12016-03-24
Foreign References:
JP2013168649A2013-08-29
JP2017520904A2017-07-27
US20170194569A12017-07-06
JP6663427B22020-03-11
JP2003133075A2003-05-09
US20140374728A12014-12-25
US20140197386A12014-07-17
US20150001488A12015-01-01
KR20130132226A2013-12-04
JP2013053051W2013-02-08
Other References:
J. AM. CHEM. SOC., vol. 123, 2001, pages 4304
NATURE, vol. 492, 2012, pages 234
NATURE PHOTONICS, vol. 8, 2014, pages 326
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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