There is provided a compound having at least one unit of Formula I (Formula I should be inserted here) where Ar1, Ar2, and Ar3 are the same or different and have Formula II (Formular II should be inserted here) In Formula II: R1 is the same or different at each occurrence and is D, alkyl, or silyl, or adjacent R1 groups can be joined together to form a 6-membered fused aromatic ring; Q is the same or different at each occurrence and is phenyl, naphthyl, substituted naphthyl, an N,O,S heterocycle, or a deuterated analog thereof; a is an integer from 1 5; b is an integer from 0-5, with the proviso that when b = 5, c = 0; and c is an integer from 0-4. In the compound not all Ar1, Ar2, and Ar3 are the same.
提供一种化合物,其至少具有一个I式单元(I式应在此处插入),其中Ar1、Ar2和Ar3相同或不同,并具有II式(II式应在此处插入)。在式II中:R1在每次出现时相同或不同,并且是D,烷基或
硅基,或相邻的R1基团可以连接在一起形成一个6元融合芳香环;Q在每次出现时相同或不同,并且是苯基、
萘基、取代
萘基、N、O、S杂环或其
氘代物;a是1-5的整数;b是0-5的整数,但当b=5时,c=0;c是0-4的整数。在该化合物中,不是所有的Ar1、Ar2和Ar3都相同。