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Title:
LIGHT-EMITTING ELEMENT AND ITS MANUFACTURING METHOD
Document Type and Number:
Japanese Patent JP2012039131
Kind Code:
A
Abstract:

To provide a composite material with excellent conductivity, a light-emitting element including the composite material, a light-emitting device, and a manufacturing method of the light-emitting element suitable for mass production.

A light-emitting element comprises a layer containing a luminescent material between a pair of electrodes, and the layer containing the luminescent material comprises a composite material including an organic compound and an inorganic compound exhibiting electron accepting property to the organic compound. Since the light-emitting element contains the composite material formed by the composition of the organic compound and the inorganic compound, the light-emitting element has excellent carrier injection property, carrier transportation property, and conductivity and can be driven at lower voltage.


Inventors:
SEO TETSUSHI
SHIMOGAKI TOMOKO
ABE HIROKO
TAKASU TAKAKO
NOMURA RYOJI
Application Number:
JP2011214334A
Publication Date:
February 23, 2012
Filing Date:
September 29, 2011
Export Citation:
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Assignee:
SEMICONDUCTOR ENERGY LAB CO LTD
International Classes:
H01L51/50; C08F26/06; C08F28/06; H05B33/10
Domestic Patent References:
JP2006190995A2006-07-20
JP2005026084A2005-01-27
JP2004134395A2004-04-30
JP2003272860A2003-09-26
JP2003217863A2003-07-31
JP2001244079A2001-09-07
JPH11504754A1999-04-27
JPH11283750A1999-10-15
JPH11251067A1999-09-17
JP2006024791A2006-01-26
JP2005123095A2005-05-12
Foreign References:
WO2004021463A22004-03-11
WO2004085543A12004-10-07
WO2005010063A12005-02-03
WO2000001203A12000-01-06
Other References:
TOMOMI YOKOZUMI ET AL.: "Fabrication and characteristics of hole transporting materials-transition metal nanoparticle composi", THIN SOLID FILMS, vol. Vol.449, Iss.1-2, JPN6012043804, 2 February 2004 (2004-02-02), pages 173 - 179, ISSN: 0002311264
KANEYOSHI HAYASHI ET AL.: "Electrical properties of composites of TiO2-triphenylamine derivatives", THIN SOLID FILMS, vol. Vol.474, Iss.1-2, JPN6012043805, 28 October 2004 (2004-10-28), pages 337 - 340, ISSN: 0002311265
TOMOMI YOKOZUMI ET AL.: "Semiconducting nanocomposite from titanium dioxide and organic charge transporting compound", SYNTHETIC METALS, vol. 139, no. 1, JPN6012043806, 8 August 2003 (2003-08-08), pages 151 - 154, ISSN: 0002515424
SHIZUO TOKITO, KOJI NODA, YASUNORI TAGA: "Metal Oxides as a hole-injecting layer for an organic electroluminescnet device", J. PHYS. D: APPL. PHYS., vol. 29, JPN4005010527, 14 November 1996 (1996-11-14), US, pages 2750 - 2753, ISSN: 0002515425
J. L. BREDAS ET AL.: "Electronic and nonlinear optical properties of polyarylene vinylenes and related conjugated systems", PROCEEDINGS OF SPIE, vol. 971, JPN6012043807, 2 March 1989 (1989-03-02), US, pages 42 - 50, XP001274276, ISSN: 0002515426



 
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