[16p-B6-1~23] 12.2 Characterization and Materials Physics

4:30 PM - 4:45 PM JST(7:30 AM - 7:45 AM UTC)

[16p-B6-13] Spontaneous orientation polarization of vacuum deposited carbazole dendrimer films

Kohei Nakao¹, Shunta Kakumachi², Eri Hisamura¹, Chihaya Adachi², Hajime Nakanotani², 〇Ken Albrecht¹ (1.IMCE Kyushu Univ., 2.OPERA Kyushu Univ.)

Keywords:

spontaneous orientation polarization,dendrimer

When organic semiconductor materials are vacuum deposited on a substrate, the dipole moment (PDM) can be partially oriented, resulting in a giant surface potential (GSP). This phenomenon is known as spontaneous orientation polarization (SOP). In this study, we focused on carbazole dendrimers. Carbazole dendrimers have high glass transition temperature and large dipole moment due to the location of polar monomers in a dendritic fashion. We have studied the SOP of carbazole dendrimer by introducing fluorinated substituents at the terminal of the inner or outer layer.