申请人:Universal Display Corporation
公开号:EP3492528A1
公开(公告)日:2019-06-05
A composition comprising a first compound capable of functioning as a phosphorescent emitter in an organic light emitting device (OLED) at room temperature is disclosed.
The first compound has the formula of Ir(L1)2(L2), wherein L1 has the formula selected from the group consisting of:
and
wherein L2 has the formula:
wherein at least one Ra, Rb, Rc, or Rd present in the first compound includes at least one R, wherein R is of Formula I:
In the structure of Formula I, R1 includes at least one fluorine atom; R2 represents mono to a maximum possible number of substitutions, or no substitution; each R2 is a hydrogen or one of a variety of substituents; L is an organic linker or direct bond; any two R1, R2 substituents may be joined or fused together to form a ring; the dashed line of Formula I is a bond to a first aromatic ring of the at least one aromatic ring; and n is an integer from 1 to 10.
Organic light emitting devices (OLEDs) and consumer products containing the compounds are also disclosed.
本发明公开了一种包含第一种化合物的组合物,该化合物能够在室温下用作有机发光器件(OLED)中的磷光发射器。
第一种化合物的化学式为 Ir(L1)2(L2),其中 L1 的化学式选自由以下组成的组:
和
其中 L2 的式为
其中存在于第一种化合物中的至少一个 Ra、Rb、Rc 或 Rd 包括至少一个 R,其中 R 为式 I:
在式 I 的结构中,R1 包括至少一个氟原子;R2 代表单取代基至最大可能取代基数,或无取代基;每个 R2 是氢或多种取代基之一;L 是有机连接体或直接键;任意两个 R1、R2 取代基可连接或融合在一起形成一个环;式 I 的虚线是与至少一个芳香环的第一个芳香环的键合;n 是 1 至 10 的整数。
此外,还公开了含有这些化合物的有机发光器件(OLED)和消费品。