[19p-G202-1~12] 12.2 Characterization and Materials Physics

[19p-G202-9] Finding of the Face-on Phase in a Pentacene Thin Film

〇Nobutaka Shioya¹, Richard Murdey¹, Kazuo Eda², Takafumi Shimoaka¹, Takeshi Hasegawa¹ (1.Kyoto Univ., 2.Kobe Univ.)

Keywords:pentacene, face-on orientation, pMAIRS

Pentacene is one of the most basic materials used in organic thin-film transistors, and its film structure is studied widely. The molecule has a very high crystallinity in a thin film, in which the molecular-axis is oriented perpendicular to the substrate surface. In the present study, a new film phase of pentacene having a face-on orientation is first identified by means of pMAIRS and GIXD.