An organic light-emitting device includes a heterocyclic compound represented by Formula 1 as a thermally activated delayed fluorescence dopant, where D
1
is a group represented by Formula 2 and Rw is selected from: —F, a cyano group, and a C
1
-C
20
alkyl group substituted with at least one —F:
一种有机发光器件包括一种由式1表示的
杂环化合物作为热激活延迟荧光掺杂剂,其中D1是由式2表示的基团,Rw选自:—F,
氰基和至少一个—F取代的C1-C20烷基基团。