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Title:
ORGANIC ELECTROLUMINESCENT ELEMENT
Document Type and Number:
Japanese Patent JP2012146811
Kind Code:
A
Abstract:

To provide an organic electroluminescent element with high luminous efficiency, a long life and a small boost of drive voltage.

The organic electroluminescent element is formed by laminating: an anode; a hole injection layer containing a triaryl amine derivative including a triphenyl amine structure as a partial structure, and an electron accepting compound; a hole transport layer containing a polymer with a repeating unit represented by the formula (2); a luminescent layer containing a triaryl triazine derivative including a triphenyl triazine structure as a partial structure, and a phosphorescent body; and a cathode, in this order. (in the formula (2), R1 to R8 represent a silyl group which may be independently replaced by a hydrogen atom, a halogen atom, a cyano group, an alkyl group of carbon numbers 1 to 10, an alkoxy group of carbon numbers 1 to 10, an aryl group of carbon numbers 6 to 20, or an alkyl group of carbon numbers 1 to 10, respectively, and R9 represents an alkyl group of carbon numbers 1 to 10, or an aryl group of carbon numbers 6 to 10.)


Inventors:
MINAGAWA HARUKA
NATORI NOBUHIRO
Application Number:
JP2011003850A
Publication Date:
August 02, 2012
Filing Date:
January 12, 2011
Export Citation:
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Assignee:
SHOWA DENKO KK
International Classes:
H01L51/50; C08F12/28; C08F26/12; C09K11/06
Attorney, Agent or Firm:
Patent corporation ssinpat