Heterocyclic compound and organic electroluminescent device using the same
申请人:Kai Takahiro
公开号:US20090153031A1
公开(公告)日:2009-06-18
Disclosed is an organic electroluminescent device (organic EL device) which is improved in luminous efficiency, fully secured of driving stability, and simple in structure and also disclosed is a heterocyclic compound useful for the said device. Specifically, the heterocyclic compound is represented by the following general formula (I) and the organic EL device comprises an organic layer containing the said heterocyclic compound. In general formula (I), X
1
and X
2
respectively denote O, S, or N—R, R denotes a hydrogen atom, an alkyl group, or a substituted or unsubstituted aryl group, Ar
1
, Ar
2
, Ar
3
, and Ar
4
respectively denote a substituted or unsubstituted aryl group, Ar
1
, Ar
2
, and the nitrogen atom bonded thereto or Ar
3
, Ar
4
, and the nitrogen atom bonded thereto may form a nitrogen-containing hetero ring, and m and n respectively denote an integer of 1 or 2.
HETEROCYCLIC COMPOUNDS AND THEIR USE IN ELECTRO-OPTICAL OR OPTO-ELECTRONIC DEVICES
申请人:Power OLEDs Limited
公开号:US20160035983A1
公开(公告)日:2016-02-04
Compounds exhibiting high hole mobility and/or high glass transition temperatures are provided which are of the formula [Ar
1
]
m
[Ar
2
]
n
wherein:
m is an integer from 1-3 and n is an integer and may be 1 or 2;
Ar
1
represents a thianthrene residue having a linkage to Ar
2
at one or two positions selected from ring positions 1-4 and 5-8 and optionally mono-, bi- or poly-substituted with C
1
-C
4
-alkyl-, C
1
-C
4
-alkoxy-, fluoro, phenyl or biphenyl which in the case of phenyl or biphenyl may be further substituted with C
1
-C
4
-alkyl-, C
1
-C
4
-alkoxy- or fluoro;
Ar
2
represents a residue derived from an arylamine in which the aryl rings are phenyl, naphthyl or anthracenyl optionally substituted with C
1
-C
4
-alkyl-, C
1
-C
4
-alkoxy- or fluoro, a polycyclic fused or chain aromatic ring system optionally containing nitrogen or sulphur and in a chain aromatic ring system optionally containing one or more chain oxygen or sulphur atoms, a triarylphosphine oxide or an arylsilane the rings of any of which are optionally substituted with C
1
-C
4
-alkyl-, C
1
-C
4
-alkoxy- or fluoro.
Certain of the compounds may be used in electron transport layers and may be doped with p-type dopants. They may be incorporated into OLEDs, organic photovoltaic devices, imaging members and thin film transistors.
In further embodiments there are provided OLEDs or other devices e.g. electrostatic latent image forming members in which improved efficiency is obtained by using as electron transport layers, electron injectors, hosts and emitters (dopants) ambipolar or electron-transmitting compounds in which thianthrene is bonded to aryl e.g. 1-anthracenyl-9-yl-thianthrene, 1-biphenyl-4-yl-thianthrene and 9,10-Bis(1-thianthrenyl) anthracene.
Heterocyclic compounds and their use in electro-optical or opto-electronic devices
申请人:Power OLEDs Limited
公开号:US10439147B2
公开(公告)日:2019-10-08
Compounds exhibiting high hole mobility and/or high glass transition temperatures are provided which are of the formula [Ar1]m[Ar2]n wherein:
m is an integer from 1-3 and n is an integer and may be 1 or 2;
Ar1 represents a thianthrene residue having a linkage to Ar2 at one or two positions selected from ring positions 1-4 and 5-8 and optionally mono-, bi- or poly-substituted with C1-C4-alkyl-, C1-C4-alkoxy-, fluoro, phenyl or biphenyl which in the case of phenyl or biphenyl may be further substituted with C1-C4-alkyl-, C1-C4-alkoxy- or fluoro;
Ar2 represents a residue derived from an arylamine in which the aryl rings are phenyl, naphthyl or anthracenyl optionally substituted with C1-C4-alkyl-, C1-C4-alkoxy- or fluoro, a polycyclic fused or chain aromatic ring system optionally containing nitrogen or sulphur and in a chain aromatic ring system optionally containing one or more chain oxygen or sulphur atoms, a triarylphosphine oxide or an arylsilane the rings of any of which are optionally substituted with C1-C4-alkyl-, C1-C4-alkoxy- or fluoro.
Certain of the compounds may be used in electron transport layers and may be doped with p-type dopants. They may be incorporated into OLEDs, organic photovoltaic devices, imaging members and thin film transistors.
In further embodiments there are provided OLEDs or other devices e.g. electrostatic latent image forming members in which improved efficiency is obtained by using as electron transport layers, electron injectors, hosts and emitters (dopants) ambipolar or electron-transmitting compounds in which thianthrene is bonded to aryl e.g. 1-anthracenyl-9-yl-thianthrene, 1-biphenyl-4-yl-thianthrene and 9,10-Bis(1-thianthrenyl) anthracene.