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.
提供了具有高空穴迁移率和/或高玻璃化转变温度的化合物,其化学式为[Ar1]m[Ar2]n,其中:m为1-3的整数,n为整数,可以为1或2;Ar1代表具有与Ar2连接的噻吩残基,所述连接选择自环位置1-4和5-8的一个或两个位置,并可选择单取代、双取代或多取代于C1-C4烷基、C1-C4烷氧基、氟、苯基或联苯基,其中在苯基或联苯基的情况下,可以进一步取代于C1-C4烷基、C1-C4烷氧基或氟;Ar2代表从芳基胺衍生的残基,其中芳环为苯基、萘基或蒽基,可选择单取代、双取代或多取代于C1-C4烷基、C1-C4烷氧基或氟,多环融合或链芳基环系统可选择包含氮或硫,在链芳基环系统中可选择包含一个或多个链氧或硫原子,三芳基氧化磷或芳基硅烷,其任何环都可选择单取代、双取代或多取代于C1-C4烷基、C1-C4烷氧基或氟。其中某些化合物可用于电子传输层,并可掺杂p型掺杂剂。它们可被纳入OLED、有机光伏器件、成像元件和薄膜晶体管。在进一步的实施例中,提供了使用作为电子传输层、电子注入剂、宿主和发射体(掺杂剂)的双极或电子传输化合物,其中噻吩与芳基(例如1-蒽基-9-基噻吩、1-联苯基-4-基噻吩和9,10-双(1-噻吩基)蒽)结合,从而获得改进的效率的OLED或其他器件,例如静电潜影成像成员。