Developments of anisotropic circularly polarized light emitting materials by using high gravity field

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K05612
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Organic and hybrid materials
• Research Institution: Kagoshima University
• Principal Investigator: SAWADA Tsuyoshi 鹿児島大学, 研究支援センター, 准教授 (90240902)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 有機光化学材料 / 光異性化 / 高重力場

Outline of Final Research Achievements

Pyrazinodihydropyrene (PZ-DHP) having plane asymmetry was synthesized as circularly polarized light emitting materials that can be applied for organic EL devices. By applying high gravity, we developed new anisotropic circularly polarized light emitting materials with high efficiency and long life. Studies on the circular polarization properties of PZ-DHP have revealed that the OPEN type shows stronger luminescence and circular polarization emission than the CLOSED type. Preparation of base materials, formation and evaluation of its thin films were investigated.However, we attempted to form anisotropic structure by high gravity by using ultra high-speed centrifuge, but no structural anisotropy of PZ-DHP was observed. As the result of the above research, I submitted 2 international papers, 3 presentations of international conferences, 7 presentations of domestic conferences and 1 patent.

Free Research Field

有機化学