Improving the performance of organic thin-film transistors

IEC 42

Shinya Aoki, Tazumi Nagasawa, and Rumiko Hayase. Advanced Materials and Devices Laboratory, Corporate R & D Center, Toshiba Corporation, 1 Komukai Toshiba-cho, Saiwai-ku, Kawasaki 212-8582, Japan
Thin-film field-effect transistors based on molecular crystals or p-conjugated polymers have attracted much interest because of their potential applications in low-cost or large-area electronics. Performance similar to amorphous silicon devices has been realized with pentacene-based transistors with long channel length >10mm. However, as for short channel devices (L<5mm) suitable for practical applications such as active-matrix displays or ICs, the device performance was still low. We will present recent work on the improvement of performance of small-molecule-based transistors, including optimization of metal/organic interface and control of thin-film morphology. Fabrication of circuits will also be presented.