[17p-B4-1~20] CS.10 Code-sharing Session of 6.6 & 12.2

2:00 PM - 2:15 PM JST(5:00 AM - 5:15 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[17p-B4-5] Hybridization of HOMO and HOMO-1 in One-Dimensional Monolayer of DPh-BTBT

〇(D)Yutaro Ono¹, Masa Iwasawa¹, Ryohei Tsuruta¹, Tomohiro Nobeyama², Masato Oda³, Hiroyuki Ishii¹, Yoichi Yamada¹ (1.Univ. Tsukuba, 2.Kyoto Univ., 3.Wakayama Univ.)

Keywords:

Photoelectron spectroscopy,Scanning tunneling microsope,Organic semiconductor

In some high-mobility organic semiconductors, the existence of mixed-orbital charge transport (MOCT), a unique conduction mechanism in which multiple molecular orbitals are hybridized, has been theoretically suggested. In this study, we formed a monolayer of DPh-BTBT, and investigated its electronic structure both experimentally and theoretically. STM measurements of the DPh-BTBT monolayer revealed a one-dimensional structure with alternating rows of face-on and edge-on oriented molecules. The HOMO of the edge-on molecule and the HOMO-1 of the face-on molecule are close energetically, and the band calculation confirms their hybridization.