Macroscopic and high-throughput printing of aligned nanostructured polymer semiconductors for MHz large-area electronics

Sadir G. Bucella, Alessandro Luzio (), Eliot Gann, Lars Thomsen, Christopher R. McNeill, Giuseppina Pace, Andrea Perinot, Zhihua Chen, Antonio Facchetti and Mario Caironi ()
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Sadir G. Bucella: Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia
Alessandro Luzio: Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia
Eliot Gann: Monash University
Lars Thomsen: Australian Synchrotron
Christopher R. McNeill: Monash University
Giuseppina Pace: Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia
Andrea Perinot: Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia
Zhihua Chen: Polyera Corporation
Antonio Facchetti: Polyera Corporation
Mario Caironi: Center for Nano Science and Technology @PoliMi, Istituto Italiano di Tecnologia

Nature Communications, 2015, vol. 6, issue 1, 1-10

Abstract: Abstract High-mobility semiconducting polymers offer the opportunity to develop flexible and large-area electronics for several applications, including wearable, portable and distributed sensors, monitoring and actuating devices. An enabler of this technology is a scalable printing process achieving uniform electrical performances over large area. As opposed to the deposition of highly crystalline films, orientational alignment of polymer chains, albeit commonly achieved by non-scalable/slow bulk alignment schemes, is a more robust approach towards large-area electronics. By combining pre-aggregating solvents for formulating the semiconductor and by adopting a room temperature wired bar-coating technique, here we demonstrate the fast deposition of submonolayers and nanostructured films of a model electron-transporting polymer. Our approach enables directional self-assembling of polymer chains exhibiting large transport anisotropy and a mobility up to 6.4 cm2 V−1 s−1, allowing very simple device architectures to operate at 3.3 MHz. Thus, the proposed deposition strategy is exceptionally promising for mass manufacturing of high-performance polymer circuits.

Date: 2015
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DOI: 10.1038/ncomms9394

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