Carbazole compounds and use of such compounds in organic electroluminiscent devices
申请人:Brunner Klemens
公开号:US20060073357A1
公开(公告)日:2006-04-06
A carbazole compound, polymeric or of low molecular weight, comprises a carbazole multimer unit of formula (I), wherein each carbazole unit may be unsubstituted or substituted with one or more substituents and n is larger than or equal to 2 for use in organic electroluminescent devices. The carbazole compounds provide facile hole-injection from a hole-injecting electrode and have a relatively triplet level enabling highly efficient electroluminescent devices to be obtained if combined with triplet emitter compounds.
METAL COMPLEX, POLYMER COMPOUND, AND DEVICE CONTAINING IT
申请人:Akino Nobuhiko
公开号:US20090043064A1
公开(公告)日:2009-02-12
A metal complex having a structure of the following general formula (1):
(wherein, X
1
and X
2
represent independently a carbon atom or nitrogen atom. Bonds represented by X
1
C and X
2
N are a single bond or double bond. M represents a transition metal atom. A dihedral angle defined by a plane containing a structure represented by C
X
1
—X
2
and a plane containing a structure represented by X
1
—X
2
N is 9° to 16°, and the proportion of the sum of squares of orbital coefficients of the outermost d orbital of the metal atom M, in the highest occupied molecular orbital of the metal complex, occupying with respect to the sum of squares of all atom orbital coefficients, is divided by an energy difference S
1
−T
1
between the lowest excitation singlet energy S
1
and the lowest excitation triplet energy T
1
of the metal complex, to give a value of 200 to 600%/eV.).
METAL COMPLEX, POLYMER COMPOUND AND DEVICE CONTAINING THOSE
申请人:Akino Nobuhiko
公开号:US20100019669A1
公开(公告)日:2010-01-28
Disclosed is a metal complex represented by the following formula (1).
In the formula, M represents a metal atom; R
1
-R
8
respectively represent a hydrogen atom, a halogen atom or a monovalent group; or alternatively R
3
and R
4
, or R
5
and R
6
may combine together to form a ring.
COMPOSITION CONTAINING A METAL COMPLEX AND ORGANIC COMPOUND, AND LIGHT-EMITTING ELEMENT USING SAID COMPOUND
申请人:Asada Kohei
公开号:US20110114890A1
公开(公告)日:2011-05-19
Disclosed is a composition containing a metal complex and an organic compound, wherein the difference between the absolute value of the energy level of the lowest unoccupied molecular orbit of said metal complex and the absolute value of the lowest unoccupied molecular orbit of said organic compound, as calculated with a computational technique, is less than 0.40 eV.
METAL COMPLEX, COMPOSITION COMPRISING SAME AND LIGHT-EMITTING ELEMENT USING SAME
申请人:Ikeda Tomiki
公开号:US20120298932A1
公开(公告)日:2012-11-29
The invention provides a metal complex having a structure represented by the following formula (1):
wherein M represents a metal atom such as copper; C
1
and C
2
are each an sp3 carbon atom; A
1
-A
4
each independently represent hydrogen, etc; this is with the proviso that A
1
and A
3
may bond together to form a C4 or greater alkylene group and form a ring together with C
1
and C
2
; the alkylene group may be optionally substituted; R
0
-R
7
each independently represent hydrogen, etc; Z represents a monovalent monodentate ligand, and p is the number of monodentate ligands, represented by (“valency of central metal atom M” −2).