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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Kočí, Jan | Prague |
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| Ali, M. A. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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Kemppainen, Antti
VTT Technical Research Centre of Finland
in Cooperation with on an Cooperation-Score of 37%
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document
Sintering of printed nanoparticle structures using laser treatment
Abstract
Printed intelligence is a promising new technology toproduce low-cost electronics. Non-conductive circuits canbe printed using nanoscale metal particle inks. Due tothe nanoscale size of the particles, the typicalsintering temperatures of 100-300 °C are only a fractionof the macroscopic melting point of the correspondingmaterials, thus allowing the use of paper or plasticsubstrates. Sintering of printed nanoparticle structuresusing lasertreatment has been investigated at VTT.Laser sintering can be utilized in manufacturing ofprinted conductor structures such as antennas, circuitsand sensors. A drop-on demand printer was used to printpatterns with metallo-organic silver nanoparticles on aflexible polyimide substrate. Laser sintering was madewith a 940 nm CW fiber coupled diode laser. Process wasoptimized using different laser power levels, lineseparation and repetition rounds. Conductivity of lasersintered samples was compared to conductivity of samplessintered in convectionoven.