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)

10:30 AM - 10:45 AM

[11a-Z13-7] Molecular Orientation Control by a Reduced Graphene Oxide Layer and its Effect on the Exciton Diffusion Length

Minori Sakurai1, Keitaro Yamada1, Tomoyuki Koganazawa2, Tomoyoshi Suenobu1, Mitsuharu Suzuki1, Ken-ichi Nakayama1 (1.Osaka Univ., 2.JASRI)

Keywords:reduced graphene oxide, molecular orientation control, exciton diffusion length

It is known that the optical properties and mobility can be improved by controlling the molecular orientation of planar π-conjugated molecules from edge-on orientation to face-on orientation during the fabrication of organic thin films. However, there are many unclear points regarding the relationship between diffusion lengths. In this study, we show that we have induced the face-on orientation of α-6T film using the spin-coated reduced graphene oxide film as a template layer, and the exciton diffusion length increases about 1.8 times with the molecular orientation change.