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Inflight Fluidic Fibre Printing Towards Array and 3D Optoelectronic and Sensing Architectures

preprint
submitted on 10.03.2020 and posted on 11.03.2020 by Andy Wang, Karim Ouarus, Alexandra L. Rutz, xia li, Magda Gerigk, Tobias Naegele, George Malliaras, yan yan shery huang
Scalability and device-integration have been prevailing issues limiting our ability in harnessing the full potential of small-diameter conducting fibres. We report inflight fluidic fibre printing, a rapid, low-cost route that integrates the entire process of conducting fibre production and fibre-to-circuit connection, in a single step under sub-100 °C ambient atmospheres. Metallic (silver) or organic (PEDOT:PSS) fibres with 1-3 μm diameter are fabricated, and the fibre arrays exhibit over 95 % transmittance in the 350-750 nm region. We exploit combinations of the unique fibre characteristics: directionality, high surface-area-to-volume ratio, and permissiveness, along with transparency and conductivity. Using PEDOT:PSS fibres as a cell-interfaced impedimetric
sensor and a moisture sensor, we show that even a single fibre component can achieve complex functions or outperform conventional film-based devices. The capability to design suspended fibres and networks of homo-, hetero- cross-junctions, paves the way to applications including
flow-permissive devices, and 3D optoelectronic and sensor architectures.

History

Email Address of Submitting Author

ww333@cam.ac.uk

Institution

University of Cambridge

Country

United Kingdom

ORCID For Submitting Author

0000-0001-6580-8236

Declaration of Conflict of Interest

No conflict of interest

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