Large-area plastic nanogap electronics enabled by adhesion lithography

Semple, James, Georgiadou, Dimitra G., Wyatt-moon, Gwenhivir, Yoon, Minho, Seitkhan, Akmaral, Yengel, Emre, Rossbauer, Stephan, Bottacchi, Francesca, Mclachlan, Martyn A., Bradley, Donal D. C. and Anthopoulos, Thomas D. (2018) Large-area plastic nanogap electronics enabled by adhesion lithography. n p j Flexible Electronics, 2 (1), 1-10, [18]. (doi:10.1038/s41528-018-0031-3).

Abstract

Large-area manufacturing of flexible nanoscale electronics has long been sought by the printed electronics industry. However, the lack of a robust, reliable, high throughput and low-cost technique that is capable of delivering high-performance functional devices has hitherto hindered commercial exploitation. Herein we report on the extensive range of capabilities presented by adhesion lithography (a-Lith), an innovative patterning technique for the fabrication of coplanar nanogap electrodes with arbitrarily large aspect ratio. We use this technique to fabricate a plethora of nanoscale electronic devices based on symmetric and asymmetric coplanar electrodes separated by a nanogap < 15 nm. We show that functional devices including self-aligned-gate transistors, radio frequency diodes and rectifying circuits, multi-colour organic light-emitting nanodiodes and multilevel non-volatile memory devices, can be fabricated in a facile manner with minimum process complexity on a range of substrates. The compatibility of the formed nanogap electrodes with a wide range of solution processable semiconductors and substrate materials renders a-Lith highly attractive for the manufacturing of large-area nanoscale opto/electronics on arbitrary size and shape substrates.

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Contributors

Author: Dimitra G. Georgiadou

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