Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
Proceedings of the International Display Workshops Volume 31 (IDW '24)
Dec 4 - Dec 6, 2024Sapporo Convention Center
[OLED4-1(Invited)]Intermittent Deposition for Controlling Molecular Orientation in OLED
*Masahiro Ohara1, Taiyo Inoue1, Sowon Kim1, Yuya Tanaka2, Hirohiko Fukagawa1, Hisao Ishii1(1. Chiba University (Japan), 2. Gunma University (Japan))
Keywords:
Spontaneous Orientation Polarization,Giant Surface Potential,Rotary Kelvin Probe
Molecules in amorphous thin films are anisotropically oriented, generating a giant surface potential (GSP) on the film surface, and the magnitude of the GSP is known to vary significantly depending on deposition parameters. In this study, we propose a new control method using the surface orientation relaxation process of molecules by introducing an interval in the deposition process.