Cost-effective, mask-less, and high-throughput prototyping of flexible hybrid electronic devices using dispense printing and conductive silver ink
Sahira Vásquez, Mattia Petrelli, Martina Aurora Costa Angeli, Júlio Costa, Enrico Avancini, Giuseppe Cantarella, Niko Münzenrieder, Paolo Lugli, Luisa Petti
Abstract
In this work, we demonstrate the advantages and the potentials of dispense printing (V-One, Voltera) for the realization of conductive contacts of flexible electronics. Printing parameters were optimized for Ag inks on different substrates (PCB, Si/SiO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> and polyimide), leading to straight homogeneous printed lines with minimum feature size of 159±22μm. Hybrid-manufactured Ag/InGaZnO Schottky diodes, with an average rectification ratio of 80 and an ON voltage of 0.63 V, were successfully demonstrated on flexible foils.