[10a-B32-1~11] 12.2 Characterization and Materials Physics

9:45 AM - 10:00 AM JST(12:45 AM - 1:00 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[10a-B32-4] Electron Spin Resonance of the Metallic State in Organic Thin-Film Single-Crystal Transistors

〇Karin Tsumura¹, Masaaki Matsuki¹, Tomoki Furukawa¹, Pushi Wang¹, Ryohei Kameyama¹, Shinya Uji^1,3, Wenhao He², Rei Kawakubo², Tsubasa Okamoto², Kazuhiro Marumoto², Shusaku Imajo¹, Jun Takeya^1,3,4 (1.Univ. of Tokyo, 2.Dep. of Mater. Sci., Univ. of Tsukuba, 3.NIMS, 4.JST CREST)

Keywords:

organic semiconductor,operando ESR

Recent advances in electric-double-layer transistor (EDLT) structures using ionic liquids have enabled high-density carrier doping and achieved metallic states in organic semiconductor single-crystal thin films. Here, we fabricated an EDLT structure on a C₉-DNBDT thin-film single crystal to inject high-density carriers and investigated its electronic state using operando ESR. Based on our findings, we will discuss the electronic states and spin relaxation mechanisms in high-carrier-density organic semiconductors.