Researches for organic electronics and functions based on novel nitrogen-containing heterocyclic compounds

2015 Fiscal Year Final Research Report

• Project/Area Number: 25410209
• 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: University of Hyogo
• Principal Investigator: Nishida Jun-ichi 兵庫県立大学, 工学(系)研究科(研究院), 准教授 (70334521)
• Co-Investigator(Renkei-kenkyūsha): YAMASHITA YOSHIRO 東京工業大学, 大学院総合理工学研究科, 教授 (90116872)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 構造・機能材料 / 分子性固体 / 誘電体物性 / 有機化学 / 超分子化学

Outline of Final Research Achievements

Organic conjugated compounds based on nitrogen-containing heterocycles have good electron-donating and accepting properties. We synthesized novel nitrogen-containing heterocyclic compounds based on imide, carbazole and diazaborole units, and investigated their molecular structures, redox and optical properties, and carrier transporting properties. Introduction of a trifluoromethylphenyl group improved their photoluminescence (PL) efficiency and some of them afforded good intramolecular charge transfer emission. The trifluoromethylphenyl groups also played an important role to decide molecular arrangements in the solids. Compounds forming noncentrosymmetric arrangements showed clear triboluminescence (TL). Introduction of further conjugated units and preparation of mixed solids improved solid PL and TL properties. New benzothiadiazole derivatives were prepared and applied to n-type semiconductors for field-effect transistors (FETs) and organic solar cells.

Free Research Field

有機合成化学