[8a-B32-1~11] 12.2 Characterization and Materials Physics

11:00 AM - 11:15 AM JST(2:00 AM - 2:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[8a-B32-8] High-Mobility Band-like Electron Transport at the Interface between an n-Type Single-Crystal Organic Semiconductor and Electrolytes

〇(DC)Pushi Wang¹, Shohei Kumagai², Toshihiro Okamoto^2,3, Ryohei Kameyama¹, Yu Yamashita^1,4, Jun Takeya^1,3,4 (1.Univ. of Tokyo, 2.Science Tokyo, 3.JST CREST, 4.NIMS)

Keywords:

Organic Semiconductor,Single-Crystal,Electric-Double-Layer Transistor

High-density carriers were induced in a high-mobility n-type organic semiconductor single-crystal p-FPhC2-BQQDI thin film using an ionic-liquid electric-double-layer transistor, and the Hall effect was measured. A clear Hall response and a temperature dependence comparable to that of a solid-gate device confirmed band-like carrier transport. This is the first demonstration of band transport under electrolyte-gate carrier induction in an n-type organic semiconductor material, and it is expected to advance complementary operation in combination with p-type materials for which band transport has already been demonstrated.