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Title:
COMPOUND HAVING INDENOCARBAZOLE RING STRUCTURE, AND ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/088281
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to provide an organic compound for use as a material in a highly efficient and highly durable organic electroluminescent element, said compound exhibiting superior hole injection and transport performance, having an electron blocking ability, and exhibiting superior properties such as high stability and light emission efficiency when in a thin-film form, and to provide a highly efficient and highly durable organic electroluminescent element using said compound. [Solution] An organic electroluminescent element characterized by comprising, between a positive electrode and a negative electrode, at least a first hole transport layer, a second hole transport layer, a green light-emitting layer and an electron transport layer in the given order from the positive electrode side, wherein the second hole transport layer or at least one layer among the stacked films disposed between the electron transport layer and the first hole transport layer includes a compound having an indenocarbazole ring structure represented by general formula (1). (In the formula, A represents a substituted or unsubstituted aromatic hydrocarbon, a substituted or unsubstituted aromatic heterocycle, or a substituted or unsubstituted divalent polycyclic aromatic group; Ar1, Ar2 and Ar3 may be the same or different, and represent a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, or a substituted or unsubstituted polycyclic aromatic group; A and Ar2 or Ar2 and Ar3 may form a ring via a single bond, or may form a ring by mutually bonding to a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom; R1-R9 may be the same or different, represent a hydrogen atom, a deuterium atom, a fluorine atom, a chlorine atom, a cyano group, a nitro group, an optionally-substituted C1-6 linear or branched alkyl group, an optionally-substituted C5-10 cycloalkyl group, an optionally-substituted C2-6 linear or branched alkenyl group, an optionally-substituted C1-6 linear or branched alkyloxy group, an optionally-substituted C5-10 cycloalkyloxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted polycyclic aromatic group, or a substituted or unsubstituted aryloxy group, and may form a ring via a single bond, or may form a ring by mutually bonding to a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom; and R10 and R11 may be the same or different, represent an optionally-substituted C1-6 linear or branched alkyl group, an optionally-substituted C5-10 cycloalkyl group, an optionally-substituted C2-6 linear or branched alkenyl group, an optionally-substituted C1-6 linear or branched alkyloxy group, an optionally-substituted C5-10 cycloalkyloxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted polycyclic aromatic group or a substituted or unsubstituted aryloxy group, and may form a ring via a single bond, or may form a ring by mutually bonding to a substituted or unsubstituted methylene group, an oxygen atom or a sulfur atom.)

Inventors:
MOCHIZUKI SHUNJI (JP)
KASE KOUKI (JP)
YAMAMOTO TAKESHI (JP)
HAYASHI SHUICHI (JP)
Application Number:
PCT/JP2018/040962
Publication Date:
May 09, 2019
Filing Date:
November 05, 2018
Export Citation:
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Assignee:
HODOGAYA CHEMICAL CO LTD (JP)
International Classes:
H01L51/50; C07F15/00; C09K11/06; C07D209/94
Domestic Patent References:
WO2012014500A12012-02-02
WO2014024880A12014-02-13
WO2009008357A12009-01-15
WO2015034125A12015-03-12
WO2016013732A12016-01-28
WO2012001986A12012-01-05
WO2012014500A12012-02-02
WO2014007565A12014-01-09
WO2014188947A12014-11-27
WO2015190400A12015-12-17
WO2015038503A12015-03-19
WO2014009310A12014-01-16
Foreign References:
JP2015517212A2015-06-18
JP2017524699A2017-08-31
JP2016532307A2016-10-13
JPH0848656A1996-02-20
JPH07126615A1995-05-16
JP2006151979A2006-06-15
JPH083547A1996-01-09
JP2002105055A2002-04-10
JP2010083862A2010-04-15
JP2005108804A2005-04-21
Other References:
"proceedings of the ninth workshop", 2001, JAPAN SOCIETY OF APPLIED PHYSICS, pages: 23 - 31
J.ORG.CHCM., vol. 71, 2006, pages 1802
J.ORG.CHCM., vol. 79, 2014, pages 6310
See also references of EP 3709375A4
Attorney, Agent or Firm:
OMORI, Junichi (JP)
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