Development of Organometallic Hybrid Phosphorescent Materials Aimed at Printable Organic Light-emitting Diodes Based on Innovative Device Structures

2014 Fiscal Year Final Research Report

• Project/Area Number: 24350101
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Partial Multi-year Fund
• Section: 一般
• Research Field: Organic industrial materials
• Research Institution: Osaka Prefecture University
• Principal Investigator: YAGI SHIGEYUKI 大阪府立大学, 工学(系)研究科(研究院), 准教授 (40275277)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 有機電子デバイス / ＯＬＥＤ / りん光材料 / 有機金属錯体 / 溶液塗布法 / エキシマー発光 / キャリア輸送 / 白色電界発光

Outline of Final Research Achievements

Aimed at development of solution-processable high-performance organic light-emitting diodes (OLEDs) with innovative device structures, we here prepared novel organometallic phosphorescent materials with carrier-transporting ability. Employing cyclometalated ligands with pi-extended conjugation systems and carrier-transporting dendrons, we successfully obtained phosphorescent organoplatinum(II) and organoiridium(III) complexes which are applicable to the emission layers in OLEDs. Using the developed hybrid phosphorescent materials as a single emission layer, solution-processed OLEDs were successfully fabricated. Furthermore, doping a red phosphorescent material into the emitting layer, white-emitting device was also obtained.

Free Research Field

有機材料化学