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Materials 2017, 10(6), 594; doi:10.3390/ma10060594

Rapid Prototyping of Slot Die Devices for Roll to Roll Production of EL Fibers

Electrical and Computer Engineering Department, Drexel University, Philadelphia, PA 19130, USA
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Academic Editor: Andrea Alù
Received: 27 April 2017 / Revised: 24 May 2017 / Accepted: 26 May 2017 / Published: 29 May 2017
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Abstract

There is a growing interest in fibers supporting optoelectrical properties for textile and wearable display applications. Solution-processed electroluminescent (EL) material systems can be continuously deposited onto fiber or yarn substrates in a roll-to-roll process, making it easy to scale manufacturing. It is important to have precise control over layer deposition to achieve uniform and reliable light emission from these EL fibers. Slot-die coating offers this control and increases the rate of EL fiber production. Here, we report a highly adaptable, cost-effective 3D printing model for developing slot dies used in automatic coating systems. The resulting slot-die coating system enables rapid, reliable production of alternating current powder-based EL (ACPEL) fibers and can be adapted for many material systems. The benefits of this system over dip-coating for roll-to-roll production of EL fibers are demonstrated in this work. View Full-Text
Keywords: electroluminescent; 3D-printing; rapid prototyping; light-emitting fibers; roll-to-roll process electroluminescent; 3D-printing; rapid prototyping; light-emitting fibers; roll-to-roll process
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Bellingham, A.; Bromhead, N.; Fontecchio, A. Rapid Prototyping of Slot Die Devices for Roll to Roll Production of EL Fibers. Materials 2017, 10, 594.

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