Abstract
A rapid low-pressure plasma sintering process of inkjet-printed silver nanoparticles is reported, yielding a conductivity of 11.4% of bulk silver within 1 min of plasma exposure and a final conductivity up to 40% of bulk silver for longer sintering times. The maximum processing temperature did not exceed 70 °C, which enabled the use of cost-effective polyethylene terephthalate (PET) foils. Fully functional radio-frequency identification (RFID) tags were prepared with inkjet-printed antennas, which showed similar results as screen-printed devices. The inkjet-printed antennas require significantly less materials, hence thinner layers, than the screen-printed references.
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Acknowledgments
For financial support, the authors thank the Dutch Polymer Institute (DPI, technology area HTE) as well as the European Community’s Seventh Framework Program (FP7/2007–2013) under grant agreement no. 248816. Renzo Paulus, Laboratory of Organic and Macromolecular Chemistry, Friedrich-Schiller-University, Jena, is kindly acknowledged for his assistance with the TGA measurements.
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Wolf, F.M., Perelaer, J., Stumpf, S. et al. Rapid low-pressure plasma sintering of inkjet-printed silver nanoparticles for RFID antennas. Journal of Materials Research 28, 1254–1261 (2013). https://doi.org/10.1557/jmr.2013.73
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DOI: https://doi.org/10.1557/jmr.2013.73