Diketopyrrolopyrrole-diketopyrrolopyrrole-based conjugated copolymer for high-mobility organic field-effect transistors

In this communication, we report the synthesis of a novel diketopyrrolopyrrole-diketopyrrolopyrrole (DPP-DPP)-based conjugated copolymer and its application in high-mobility organic field-effect transistors. Copolymerization of DPP with DPP yields a copolymer with exceptional properties such as extended absorption characteristics (up to ∼1100 nm) and field-effect electron mobility values of >1 cm 2 V -1 s -1. The synthesis of this novel DPP-DPP copolymer in combination with the demonstration of transistors with extremely high electron mobility makes this work an important step toward a new family of DPP-DPP copolymers for application in the general area of organic optoelectronics. © 2012 American Chemical Society.

Citation

Kanimozhi, C., Yaacobi-Gross, N., Chou, K. W., Amassian, A., Anthopoulos, T. D., & Patil, S. (2012). Diketopyrrolopyrrole–Diketopyrrolopyrrole-Based Conjugated Copolymer for High-Mobility Organic Field-Effect Transistors. Journal of the American Chemical Society, 134(40), 16532–16535. doi:10.1021/ja308211n

Sponsors

The authors acknowledge financial support from the Department of Science and Technology, India through the Indo-UK Apex Program and Ministry of Communication and Information Technology under a grant for the Centre of Excellence in Nanoelectronics, Phase II. We thank our colleagues Dr. Mallari Naik and Dr. N. Venkatramaiah for the TD-DFT calculations and support. We are grateful to Anke Helfer for GPC measurements. T.D.A. and N.Y.G. are grateful to the Engineering and Physical Sciences Research Council (EPSRC) (Grant EP/J001473/1) and the European Research Council (ERC) for financial support. Portions of this research were carried out at the Stanford Synchrotron Radiation Lightsource, a Directorate of SLAC National Accelerator Laboratory and an Office of Science User Facility operated for the U.S. Department of Energy Office of Science by Stanford University.