Selective Printing of Electronic Layers for Multi-Layered Devices using Tailored Surface Morphology

Christou, A., Liu, F. , Dahiya, A. S. and Dahiya, R. (2021) Selective Printing of Electronic Layers for Multi-Layered Devices using Tailored Surface Morphology. In: 2021 IEEE International Conference on Flexible and Printable Sensors and Systems (FLEPS), 20-23 Jun 2021, ISBN 9781728191737 (doi: 10.1109/FLEPS51544.2021.9469792)

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Abstract

Contact printing of inorganic nanostructures such nanowires (NWs) has shown great potential for development of high-performance large area electronics (LAE) by printing. The LAE requires printing of electronic layer at selected locations, defined by the circuit layouts. In this paper, we demonstrate that simply with tailored surface morphology of the receiver substrate it is possible to obtain selective printing of electronic layers. The contact printing process has been used here to obtain NW (d=100nm) arrays on the receiver substrates, which is patterned with 3D features of varying height (20 – 200nm). The result show that for larger feature heights, the surface morphology has an impact on the printing uniformity. The effects of surface morphology are also studied in the context of multi-layer devices where uneven surfaces can be found. Surface planarization is investigated as a means for restoring the printing uniformity on uneven surfaces. The conducted studies demonstrate that surface features of a device can be exploited to aid in device fabrication while the planarization technique is able to negate unwanted effects resulting from uneven printing surfaces.

Item Type:Conference Proceedings
Status:Published
Refereed:Yes
Glasgow Author(s) Enlighten ID:Dahiya, Dr Abhishek Singh and Dahiya, Professor Ravinder and Christou, Mr Adamos and Liu, Mr Fengyuan
Authors: Christou, A., Liu, F., Dahiya, A. S., and Dahiya, R.
College/School:College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
ISBN:9781728191737
Published Online:05 July 2021

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Project CodeAward NoProject NamePrincipal InvestigatorFunder's NameFunder RefLead Dept
301728Engineering Fellowships for Growth: Printed Tactile SKINRavinder DahiyaEngineering and Physical Sciences Research Council (EPSRC)EP/R029644/1ENG - Electronics & Nanoscale Engineering
301327`Hetero-print: A holistic approach to transfer-printing for heterogeneous integration in manufacturingPeter SkabaraEngineering and Physical Sciences Research Council (EPSRC)EP/R03480X/1ENG - Electronics & Nanoscale Engineering