[11a-S2-1~11] 12.1 Fabrications and Structure Controls

11:15 AM - 11:30 AM JST(2:15 AM - 2:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-S2-9] Double-column charge transport in a T-shaped organic semiconductor with pitched π-stacking structure

〇(D)Suo Jeon¹, Seiya Yokokura^1,2, Hiroki Waizumi^1,2, Toshihiro Shimada^1,2 (1.CSE, Hokkaido Univ., 2.ENG, Hokkaido Univ.)

Keywords:

Organic semiconductor

A novel T-shaped π-conjugated molecule, T-BQx, was synthesized, yielding two polymorphs (LT from and HT form). While the LT form exhibits one-dimensional charge transport, the HT form exhibits cooperative conduction pathways—termed "double-column charge transport"—arising from intermolecular orbital overlap. Organic field-effect transistor (OFET) evaluations revealed that the charge-carrier mobility of the HT phase reached 1.21 cm²/Vs, significantly outperforming the LT phase. The cooperative transport pathway demonstrated in this study is expected to serve as a new structural design guideline for the development of high-performance organic semiconductors.