Development of high-performance semiconducting polymers and their structure control

2014 Fiscal Year Final Research Report

• Project/Area Number: 24685030
• Research Category: Grant-in-Aid for Young Scientists (A)
• Allocation Type: Partial Multi-year Fund
• Research Field: Functional materials/Devices
• Research Institution: The Institute of Physical and Chemical Research (2013-2014); Hiroshima University (2012)
• Principal Investigator: OSAKA Itaru 独立行政法人理化学研究所, 創発物性科学研究センター, 上級研究員 (80549791)
• Project Period (FY): 2012-04-01 – 2015-03-31
• Keywords: 有機半導体 / 共役系ポリマー / 有機エレクトロニクス / 有機トランジスタ / 有機薄膜太陽電池

Outline of Final Research Achievements

In this research, I have worked on the development of novel semiconducting polymers toward the improvement of the properties of organic electronic devices. Some of the polymers synthesized here demonstrated charge carrier mobilities of more than 1 cm2/Vs, which is very high for polymers, and/or exhibited not only p-channel behavior but also ambipolar behavior in organic field-effect transistors. Furthermore, a power conversion efficiency of 10% was achieved in solar cells using a polymer synthesized in this work. It was found that the molecular orientation can be controled by the molecular design, and the device properties varied dependent on the molecular orientation.

Free Research Field

高分子材料