Chiral aggregation-induced emission luminogens with delayed fluorescence for circularly polarized organic light-emitting diodes

A con pound of Formula I:

• wherein X1 is selected from the group consisting of:
• R1 for each instance is independently selected from the group consisting of halide, H, alkyl, alkene, alkyne, heteroalkyl, cycloalkyl, heterocycloalkyl, aryl, heteroaryl, carboxyl, —NR2, sulfonic acid, —SR, and —OR;
• Y is —N(R)—, O, S, Se, Te, or —C(R)2—;
• wherein at least one R1 optionally further comprises a terminal functional group selected from the group consisting of N3, NCS, SH, NH2, COOH, alkyne, N-hydroxysuccinimide ester, maleimide, hydrazide, nitrone group, —CHO, OH, halide, and charged ionic group;
• and
• R for each instance is independently selected from the group consisting of H, alkyl, cycloalkylaryl, aryl, and heteroaryl, wherein the compound of Formula I is isolated, pure, or present in a film.