[24a-22B-1~9] 12.4 Organic light-emitting devices and organic transistors

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)

[24a-22B-4] Crystal Structures of Organic Semiconductors with Alkyl Groups

〇Takehiko Mori¹ (1.Tokyo Inst. Tech.)

Keywords:

organic semiconductor,organic transistor,herringbone structure

Previously, we have investigated when herringbone structures of organic semiconductors change to a stacking structure. Here we examine herringbone structures containing alkyl groups and aromatic hydrocarbons containing five-membered rings. When molecules are stacked, electrostatic repulsion works, but when they form a T-shaped structure, electrostatic attraction works, resulting in a herringbone structure. Based on this, we attempt to predict the crystal structure from the magnitude of electrostatic force.