High-Resolution, Transparent, and Flexible Printing of Polydimethylsiloxane via Electrohydrodynamic Jet Printing for Conductive Electronic Device Applications

• DOI: 10.3390/polym14204373
• Publication Date: 2022-10-17T09:08:02Z
• Authors: Rizwan Ul Hassan; Shaheer Mohiuddin...; Saeed Ahmed Khan; Shahzaib Ali; Joonkyeong Moon; Dae-Hyun Cho; Doyoung Byun
• Keywords: Polydimethylsiloxane; Electrohydrodynamics; Stretchable electronics; Gauge factor; Flexible Electronics; Printed Electronics

In the field of soft electronics, high-resolution and transparent structures based on various flexible materials constructed via printing techniques are gaining attention. With support electrical stress-induced conductive inks, electrohydrodynamic (EHD) jet technique enables us to build compared with conventional inkjet techniques. Here, EHD was used fabricate a high-resolution, transparent, strain sensor using polydimethylsiloxane (PDMS)/xylene elastomer, where repetitive controllable printed mesh were obtained. The parametric effects voltage, flow rate, nozzle distance from substrate, speed experimentally investigated achieve (5 µm) structure. Plasma treatment performed enhance adhesion between AgNWs elastomer plasma-treated functional structure exhibited stable long strain-sensing cycles during stretching bending. This simple resulted in flexible, sensing. gauge factor significantly increased, owing high resolution sensitivity structures, demonstrating that technology can be applied microchannels, 3D printing, electronic devices.