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Title:
PHOSPHORESCENT LIGHT-EMITTING ELEMENT
Document Type and Number:
WIPO Patent Application WO/2012/056931
Kind Code:
A1
Abstract:
The objective of the present invention is to provide a light-emitting element that uses a metal that is low-cost compared with platinum-group metals as a light-emitting material, and that has superior color purity during light emission. The present invention provides a light-emitting element containing a complex exhibiting phosphorescent light-emission properties and represented by compositional formula (1): (M+)(L1)a(X1)b (In the formula, M+ is Cu+ or Ag+. L1 is a ligand that has two phosphorus atoms as atoms that can coordinate with M+. X1 is an anion, and a and b are each independently a positive number. If the complex contains a plurality of L1, each L1 may be the same or different from the others. If the complex contains a plurality of X1, each X1 may be the same or different from the others.)

Inventors:
KOBAYASHI NORIFUMI (JP)
HIGASHIMURA HIDEYUKI (JP)
Application Number:
PCT/JP2011/073854
Publication Date:
May 03, 2012
Filing Date:
October 17, 2011
Export Citation:
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Assignee:
SUMITOMO CHEMICAL CO (JP)
KOBAYASHI NORIFUMI (JP)
HIGASHIMURA HIDEYUKI (JP)
International Classes:
H01L51/50; C07F1/08; C07F1/10; C07F9/50; C07F19/00; C09K11/06; H05B33/10
Domestic Patent References:
WO2009000673A22008-12-31
WO2010031485A12010-03-25
WO2010086089A12010-08-05
Foreign References:
JP2006286749A2006-10-19
JP2010093181A2010-04-22
JP2008303152A2008-12-18
JP2011213643A2011-10-27
JP2005129499A2005-05-19
JP2005190987A2005-07-14
JP2010532399A2010-10-07
JP2003332074A2003-11-21
Attorney, Agent or Firm:
SAKAI, Hiroaki et al. (JP)
Hiroaki Sakai (JP)
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