Printed Electronics

Printed electronics is an emerging technology to create electrical devices on various substrates using printing methods. High-throughput printing methods such as screen printing, flexography, gravure, inkjet and aerosol-jet methods can be used to deposit functional inks of conductors, insulators, semiconductors creating active or passive devices, such as thin film transistors (TFTs); capacitors; coils; resistors, memory elements. Printed electronics is expected to facilitate widespread of low-cost electronics for applications such as the Internet-of-Things (IoT), smart labels and cards, tracking tags, high-level security elements, decorative and animated posters and toys, etc.

Our Laboratory is developing materials, processes and devices including:

  • oxide-based conductors (e.g. printed ITO), insulators (e.g. Al2O3-, SiO2-based) and semiconductors (e.g. In-Ga-Zn-O) for demonstrating printed TFTs, Schottky diodes and sensors;
  • new interconnection concepts for photovoltaic modules;
  • high-resolution drop-on-demand printing methods including ink-jet and aerosol-jet printing;
  • photonic sintering of various printed structures and layers (semiconductors, conductors, dielectrics, ceramics) using flash-lamp annealing (photonic curing), deep-UV annealing (DUV), rapid-thermal processing (RTP).

Research work is taking place in the Coating Competence Center using various printing and annealing tools enabling a fast transfer our new ideas and processes from the lab into the industry.

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Selected publications:
  • Evgeniia Gilshtein, Jasmine Tacneng, Sami Bolat, Galo Torres Sevilla and Yaroslav E. Romanyuk, Invisible and Flexible Printed Sensors Based on ITO Nanoparticle Ink for Security Applications, Front. Nanotechnol. 2021, 3, 700539.
  • Evgeniia Gilshtein, Stefan Pfeiffer, Marta D. Rossell, Jordi Sastre, Lovro Gorjan, Rolf Erni, Ayodhya N. Tiwari, Thomas Graule & Yaroslav E. Romanyuk, Millisecond photonic sintering of iron oxide doped alumina ceramic coatings, Sci. Rep., 2021, 3536.
  • Sami Bolat, Galo Torres Sevilla, Alessio Mancinelli, Evgeniia Gilshtein, Jordi Sastre, Antonio Cabas Vidani, Dominik Bachmann, Ivan Shorubalko, Danick Briand, Ayodhya N. Tiwari & Yaroslav E. Romanyuk, Synaptic transistors with aluminum oxide dielectrics enabling full audio frequency range signal processing, Sci. Rep., 2020, 16664.
  • Evgeniia Gilshtein, Sami Bolat, Galo Torres Sevilla, Antonio Cabas-Vidani, Frank Clemens, Thomas Graule, Ayodhya N. Tiwari, Yaroslav E. Romanyuk, Inkjet‐Printed Conductive ITO Patterns for Transparent Security Systems, Adv. Mater. Technol. 2020, 2000369.
  • Sami Bolat, Peter Fuchs, Stefan Knobelspies, Ozgur Temel, Galo Torres Sevilla, Evgeniia Gilshtein, Christian Andres, Ivan Shorubalko, Yujing Liu, Gerhard Tröster, Ayodhya N. Tiwari, Yaroslav E. Romanyuk, Inkjet‐Printed and Deep‐UV‐Annealed YAlOx Dielectrics for High‐Performance IGZO Thin‐Film Transistors on Flexible Substrates, Adv. Electron. Mater. 2019, 5, 1800843.
  • Yujing Liu, Thierry Moser, Christian Andres, Lovro Gorjan, Arndt Remhof, Frank Clemens, Thomas Graule, Ayodhya N. Tiwari and  Yaroslav E. Romanyuk, Ethanolamine-assisted low-temperature crystallization of hydroxide nanoparticle ink into transparent and conductive ITO layers, J. Mater. Chem. A, 2019,7, 3083-3089.

Dr. Yaroslav Romanyuk

Group Leader

Phone +41 58 765 4169