[7p-P04-1~33] 12.3 Functional Materials and Novel Devices

[7p-P04-12] Photoresponsive Behavior of LCs Containing EH-IDTBR as a Non-Fullerene Acceptor

Hyouta Tamura¹, Shouta Arai¹, 〇Motoi Kinoshita¹ (1.Saitama Inst. Tech.)

Keywords:

liquid crystal,photoalignment,non-fullerene acceptor

In recent years, non-fullerene acceptor molecules have become essential materials for achieving high performance in organic thin-film solar cells, leading to active development of new acceptor materials. However, the advancement of high-performance organic semiconductor devices depends not only on the molecular structure, but also on the molecular alignment control necessary for efficient charge transport.
Therefore, controlling the molecular orientation of organic semiconductors is a critical issue.
We are conducting research on the photoalignment behavior of π-conjugated molecules without photoisomerization moieties. Reentry, we have revealed that oligothiophene derivatives and perylene bisimidazole derivatives, known as organic semiconductors, exhibit clear photo-alignment behavior in liquid crystals. More recently, our investigation into the photoresponsive behavior of several non-fullerene acceptor molecules in liquid crystals has shown that EH-IDTBR demonstrates photoalignment behavior.In this study, we explored the photoresponsive behavior of LCs Containing EH-IDTBR as a Non-Fullerene Acceptor