Diketopyrrolopyrrole-based three-armed conjugated small molecule and their charge transport property

ABSTRACT

We synthesized three-armed conjugated small molecule, PTD bearing diketopyrrolopyrrole (DPP) moieties and investigated the fundamental properties such as physical, photophysical and electronic properties. Also, field-effect transistor (FET) based on the micro-patterned film was fabricated by using template-guided solution-shearing (TGSS) method and displayed higher hole mobility than the thin film transistor made of spin-coated film.

KEYWORDS:

• diketopyrrolopyrrole
• conjugated small molecule
• field-effect transistor
• micro-patterning.

Acknowledgments

This research was supported by National Research Foundation of Korea (NRF2012R1A2A1A01008797) and Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (NRF20100020209). We are grateful to Pohang Accelerator Laboratory (Pohang, Korea) for allowing us to conduct the grazing incidence X-ray diffraction (GI-XRD) measurements.