MATERIAL FOR ORGANIC ELECTROLUMINESCENT ELEMENT, AND ORGANIC ELECTROLUMINESCENT ELEMENT
申请人:Takashima Yoriyuki
公开号:US20110315965A1
公开(公告)日:2011-12-29
An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.
Benzochrysene derivative and an organic electroluminescence device using the same
申请人:Idemitsu Kosan Co., Ltd.
公开号:US08253129B2
公开(公告)日:2012-08-28
A fused aromatic ring derivative shown by the following formula (1):
wherein Ra and Rb are independently a hydrogen atom or a substituent; p is an integer of 1 to 13; q is an integer of 1 to 8; when p is two or more, plural Ras may be the same or different, and adjacent Ras may form a saturated or unsaturated ring; when q is two or more, plural Rbs may be the same or different, and adjacent Rbs may form a saturated or unsaturated ring; L1 is a single bond or a substituted or unsubstituted divalent linking group; and Ar1 is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 50 ring carbon atoms.
Material for organic electroluminescent element, and organic electroluminescent element
申请人:Takashima Yoriyuki
公开号:US08940412B2
公开(公告)日:2015-01-27
An organic electroluminescence device and a material for producing the organic electroluminescence device. The organic electroluminescence device includes an organic thin film layer between a cathode and an anode, the organic thin film layer including one or more layers, in which the organic thin film layer includes one or more light emitting layers and at least one of the light emitting layers includes a phosphorescent material and a host material. The host material has an essential structure in which a naphthalene ring is bonded to a fluorene skeleton, dibenzofuran skeleton, or dibenzothiophene skeleton. The organic electroluminescence device is a phosphorescent device having high efficiency and long lifetime.
BENZOCHRYSENE DERIVATIVE AND AN ORGANIC ELECTROLUMINESCENCE DEVICE USING THE SAME
申请人:Kawamura Masahiro
公开号:US20100295029A1
公开(公告)日:2010-11-25
A fused aromatic ring derivative shown by the following formula (1):
wherein R
a
and R
b
are independently a hydrogen atom or a substituent; p is an integer of 1 to 13; q is an integer of 1 to 8; when p is two or more, plural R
a
s may be the same or different, and adjacent R
a
s may form a saturated or unsaturated ring; when q is two or more, plural R
b
s may be the same or different, and adjacent R
b
s may form a saturated or unsaturated ring; L
1
is a single bond or a substituted or unsubstituted divalent linking group; and Ar
1
is a substituted or unsubstituted aryl group having 6 to 50 ring carbon atoms or a substituted or unsubstituted heteroaryl group having 5 to 50 ring carbon atoms.
ORGANIC ELECTROLUMINESCENCE DEVICE AND MATERIAL FOR ORGANIC ELECTROLUMINESCENCE DEVICE
申请人:IWAKUMA Toshihiro
公开号:US20100253211A1
公开(公告)日:2010-10-07
An organic electroluminescence device includes: a cathode; an anode; and a single-layered or multilayered organic thin-film layer provided between the cathode and the anode. In the organic electroluminescence device, at least one layer of the organic thin-film layer includes: an organic-electroluminescence-device material represented by a general formula selected from the following formulae (1), (2) and (3); and at least one phosphorescent material. In the formula: A represents a group selected from a 3-fluoranthenyl group, 5-benzo[c]phenanthrenyl group, 6-benzo[c]phenanthrenyl group and 10-benzo[g]chrysenyl group; Ar represents a fused aromatic ring having 10 to 30 carbon atoms and having triplet energy of 2.10 eV or more; and A or Ar is allowed to be substituted by a phenyl group or a naphthyl group.