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Title:
COMPOSITION COMPRISING PHOSPHORESCENCE EMITTING COMPOUND, AND LIGHT EMITTING ELEMENT USING THE COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2010/013827
Kind Code:
A1
Abstract:
Disclosed is a composition comprising a phosphorescence emitting compound and a compound having a structure comprising three or more repeating units that have a dipole moment size of not less than 1.0 debye and have been consecutively bonded to each other.  Not less than 50% of the total number of dimer structures contained in the structure and comprising any two consecutive bonded repeating units is accounted for by dimer structures that satisfy a relationship represented by the following formula (A): D1a < D2 and D1b < D2   (A) wherein D2 represents the size of the dipole moment of the dimer structure; D1a represents the size of the dipole moment of the first repeating unit constituting the dimer structure; and D1b represents the size of the dipole moment of the second repeating unit.

Inventors:
AKINO NOBUHIKO (JP)
TANAKA KENTA (JP)
HIGASHIMURA HIDEYUKI (JP)
Application Number:
PCT/JP2009/063712
Publication Date:
February 04, 2010
Filing Date:
July 28, 2009
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
SUMATION CO LTD (JP)
AKINO NOBUHIKO (JP)
TANAKA KENTA (JP)
HIGASHIMURA HIDEYUKI (JP)
International Classes:
C08L65/00; C07D239/26; C08G61/12; C09K11/06; H01L51/50
Domestic Patent References:
WO2008081852A12008-07-10
WO2008096735A12008-08-14
WO2002066552A12002-08-29
WO2004020504A12004-03-11
WO2004020448A12004-03-11
WO2002066552A12002-08-29
Foreign References:
JPH07196780A1995-08-01
JP2006504862A2006-02-09
JP2002241455A2002-08-28
JPS6370257A1988-03-30
JPS63175860A1988-07-20
JPH02135359A1990-05-24
JPH02135361A1990-05-24
JPH02209988A1990-08-21
JPH0337992A1991-02-19
JPH03152184A1991-06-28
Other References:
APPLIED PHYSICS LETTERS, vol. 80, no. 13, 2002, pages 2308
CHEM. REV., vol. 102, 2002, pages 1359
NATURE, vol. 395, 1998, pages 151
APPL. PHYS. LETT., vol. 75, no. 1, 1999, pages 4
"Organic Light-Emitting Materials and Devices IV", PROC. SPIE-INT. SOC. OPT. ENG., vol. 4105, 2001, pages 119
J. AM. CHEM. SOC., vol. 123, 2001, pages 4304
APPL. PHYS. LETT., vol. 71, no. 18, 1997, pages 2596
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INORG. CHEM., vol. 42, 2003, pages 8609
INORG. CHEM., vol. 43, 2004, pages 6513
JOURNAL OF THE SID, vol. 11/1, 2003, pages 161
Attorney, Agent or Firm:
NAKAYAMA, Tohru et al. (Limited 5-33, Kitahama 4-chome, Chuo-ku, Osaka-sh, Osaka 50, JP)
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