The 81st JSAP Autumn Meeting, 2020

Presentation information

Oral presentation

12 Organic Molecules and Bioelectronics » 12.1 Fabrications and Structure Controls

[11a-Z13-1~10] 12.1 Fabrications and Structure Controls

Fri. Sep 11, 2020 8:45 AM - 11:30 AM Z13

Norihisa Akamatsu(Tokyo Tech)

9:15 AM - 9:30 AM

[11a-Z13-3] Discovery of Thin-Film Phase of DNTT by High-Resolution X-Ray Diffraction

Nobutaka Shioya1, Takafumi Shimoaka1, Takeshi Hasegawa1 (1.ICR, Kyoto Univ.)

Keywords:organic semiconductor, XRD, vapor deposition

Dinaphthothienothiophene (DNTT) has received considerable interest as a promising material for organic thin-film transistors, replacing the conventional basic material of pentacene. Although the excellent device performances of DNTT are demonstrated by many reports, a comprehensive understanding of the thin film growth is much behind. In the present study, the thickness-dependent structural evolution is studied by using high-resolution X-ray diffraction. This technique reveals for the first time the existence of the “thin-film” phase, which has long been missed by the conventional analytical limit.