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Title:
ORGANIC ELECTROLUMINESCENCE ELEMENT
Document Type and Number:
WIPO Patent Application WO/2019/181465
Kind Code:
A1
Abstract:
Provided is an organic EL element that exhibits high luminous efficiency at low voltages, and demonstrates high driving stability. This organic electroluminescence element is obtained by layering a positive electrode, organic layers and a negative electrode on a substrate, and is characterized in that a material containing a carborane compound having a carborane ring and a biscarbazole ring and also containing an indolocarbazole compound having one or two indolocarbazole rings is included in at least one of said organic layers. The carborane compound is represented by formula (1), where HA is a group containing a carborane ring.

Inventors:
UEDA TOKIKO (JP)
SAWADA YUICHI (JP)
Application Number:
PCT/JP2019/008491
Publication Date:
September 26, 2019
Filing Date:
March 05, 2019
Export Citation:
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Assignee:
NIPPON STEEL CHEMICAL & MAT CO LTD (JP)
International Classes:
H01L51/50
Domestic Patent References:
WO2015146417A12015-10-01
WO2017169355A12017-10-05
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Foreign References:
JP2016072377A2016-05-09
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Other References:
ADV. MATER., vol. 21, 2009, pages 48064806
APPL. PHYS. LETT., vol. 98, 2011, pages 083302
J. AM. CHEM. SOC., vol. 134, 2012, pages 14706 - 14709
See also references of EP 3770985A4
Attorney, Agent or Firm:
SASAKI Kazuya et al. (JP)
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