[EN] COMPOUND, COMPOSITION AND ORGANIC LIGHT-EMITTING DEVICE<br/>[FR] COMPOSÉ, COMPOSITION ET DISPOSITIF ORGANIQUE ÉLECTROLUMINESCENT
申请人:CAMBRIDGE DISPLAY TECH LTD
公开号:WO2017144863A1
公开(公告)日:2017-08-31
A compound of formula (I) or (III) (Formulae (I), (III)) wherein: one Y is a substituent R1 bound directly to the fluorene unit of formula (I) by an sp3-hybridised carbon atom; the other Y is an aryl or heteroaryl group Ar1 that may be unsubstituted or substituted with one or more substituents; Ar2 is an arylene or heteroarylene group; R2 is a substituent; b is 0, 1, 2, 3 or 4; c is 0, 1, 2 or 3; and X is a group of formula (II): (Formula (II)) wherein Z is O or S; R3 independently in each occurrence is a substituent; each x is independently 0, 1, 2 or 3; and * is a bond to the fluorene unit of formula (I).The compounds may be used as host materials for phosphorescent dopants in organic light-emitting devices.
化合物的公式为(I)或(III)(公式(I),(III)),其中:Y之一是通过sp3杂化碳原子直接连接到公式(I)的芴单元上的取代基R1;另一个Y是芳基或杂环芳基Ar1,可以是未取代或取代有一个或多个取代基;Ar2是芳撑或杂环芳撑基;R2是取代基;b为0、1、2、3或4;c为0、1、2或3;X是公式(II)的一个基团:(公式(II))其中Z为O或S;R3在每次出现时独立为取代基;每个x独立为0、1、2或3;*是连接到公式(I)的芴单元的键。这些化合物可用作有机发光器件中荧光掺杂剂的宿主材料。