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Published in

Wiley, Advanced Electronic Materials, 5(1), p. 1500024, 2015

DOI: 10.1002/aelm.201500024

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Self-Aligned Megahertz Organic Transistors Solution-Processed on Plastic

This paper is made freely available by the publisher.
This paper is made freely available by the publisher.

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Abstract

The processing of complex nanoscale electronic structures on plastic substrates is a significant challenge, requiring the combination of low temperature, nonaggressive, and high resolution methods. Here a scalable process flow on plastic is presented tbat enables the fabrication of flexible nano­imprinted organic field-effect transistors (OFETs) with self-aligned contacts and solution-processed semiconductor and dielectric layers, at processing temperatures ≤ 150 °C. OFETs are fabricated with device cutoff frequencies f > 1 MHz at low operating bias V DS = −15 V. The technique allows the patterning of metal structures over four orders of magnitude from 375 nm to 1 mm without the need for a rigid carrier, and provides a fabrication pathway to high performance nanostructured organic circuitry.