02/12/2024

LT-PhotoInk - Ag nanoparticle inks for photonic sintering of inkjet-printed structures on substrates with low thermal resistance.

Process technology for the processing of multi-modal silver nanoparticles for inkjet printing.

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Project details

Duration	1 Apr 2023 - 31 Mar 2026
Research theme	Materials & Production Engineering
Project leader	Prof. Marcus Reichenberger Institute for Chemistry, Materials and Product Development (OHM-CMP) Faculty of Electrical Engineering, Precision Engineering, Information Technology
Project partners	- GSB Wahl GmbH - INM - Leibnitz Institute for New Materials
Funding provided by	Federal Ministry for Economic Affairs and Climate Protection

Description

The project aim is to develop an inkjet ink based on silver nanoparticles with the lowest possible energy input (i.e., with photonic sintering or low sintering temperatures) and short sintering duration onto PET and other substrates coated with polymers (e.g., coated papers) to produce densely printed structures with high electrical conductivity and good bonding strength. The first intended use of these structures would be in the field of smart packaging. Based on such structures, further components could be integrated in labels and other printed surfaces. Particularly high electrical conductivity of over 40% of bulk silver is desired and is being aimed for with this new development.