[9a-PB4-1~27] 12.4 Organic light-emitting devices, organic transistors, and flexible devices

[9a-PB4-11] Evaluation of Spin Selectivity Using Self-Assembled Monolayer-Modified Electrodes Based on Helical π-Conjugated Molecules

〇Takumi Koyama¹, Hirai Kaname¹, Gento Koike¹, Tatsuya Nishimura¹, Md. Shahiduzzaman^1,2, Makoto Karakawa^1,2, Tetsuya Taima^1,2, Masahiro Nakano¹ (1.College of Science and Engineering, Kanazawa Univ., 2.NanoMaRi ,Kanazawa Univ.)

Keywords:

Spin Selectivity,Self-Assembled Monolayer

To exploit the chirality-induced spin selectivity (CISS) effect, we investigated the spin selectivity of electrodes modified with self-assembled monolayer (SAM) of helical π-conjugated molecules. Magnetization-dependent cyclic voltammetry (CV) measurements revealed a distinct difference in the spin polarization (SP) depending on the probe: the SP value of 4% obtained with the achiral probe significantly increased to 17% with the chiral probe. These findings demonstrate that intermolecular interactions at the SAM/probe interface play an important role in determining spin selectivity, suggesting the feasibility of efficient spin control through precise interface engineering.