Laser printed microelectronics

Liang Yang (), Hongrong Hu, Alexander Scholz, Florian Feist, Gabriel Cadilha Marques, Steven Kraus, Niklas Maximilian Bojanowski, Eva Blasco, Christopher Barner-Kowollik, Jasmin Aghassi-Hagmann and Martin Wegener ()
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Liang Yang: Karlsruhe Institute of Technology (KIT)
Hongrong Hu: Karlsruhe Institute of Technology (KIT)
Alexander Scholz: Karlsruhe Institute of Technology (KIT)
Florian Feist: Karlsruhe Institute of Technology (KIT)
Gabriel Cadilha Marques: Karlsruhe Institute of Technology (KIT)
Steven Kraus: Karlsruhe Institute of Technology (KIT)
Niklas Maximilian Bojanowski: Karlsruhe Institute of Technology (KIT)
Eva Blasco: Karlsruhe Institute of Technology (KIT)
Christopher Barner-Kowollik: Karlsruhe Institute of Technology (KIT)
Jasmin Aghassi-Hagmann: Karlsruhe Institute of Technology (KIT)
Martin Wegener: Karlsruhe Institute of Technology (KIT)

Nature Communications, 2023, vol. 14, issue 1, 1-10

Abstract: Abstract Printed organic and inorganic electronics continue to be of large interest for sensors, bioelectronics, and security applications. Many printing techniques have been investigated, albeit often with typical minimum feature sizes in the tens of micrometer range and requiring post-processing procedures at elevated temperatures to enhance the performance of functional materials. Herein, we introduce laser printing with three different inks, for the semiconductor ZnO and the metals Pt and Ag, as a facile process for fabricating printed functional electronic devices with minimum feature sizes below 1 µm. The ZnO printing is based on laser-induced hydrothermal synthesis. Importantly, no sintering of any sort needs to be performed after laser printing for any of the three materials. To demonstrate the versatility of our approach, we show functional diodes, memristors, and a physically unclonable function based on a 6 × 6 memristor crossbar architecture. In addition, we realize functional transistors by combining laser printing and inkjet printing.

Date: 2023
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DOI: 10.1038/s41467-023-36722-7

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