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Effect of the light spectrum of various substrates for inkjet printed conductive structures sintered with intense pulsed light

: Weise, D.; Mitra, K.Y.; Ueberfuhr, P.; Baumann, R.R.


Logothetidis, S.:
International Conferences & Exhibition on Nanotechnologies & Organic Electronics (NANOTEXNOLOGY 2014) : Proceedings of NN14 and ISFOE14 ; Thessaloniki, Greece, 5-12 July 2014
Melville, NY: AIP, 2015 (AIP Conference Proceedings 1646)
ISBN: 978-0-7354-1285-9
International Conferences & Exhibition on Nanotechnologies & Organic Electronics (Nanotexnology) <2014, Thessaloniki>
International Conference on Nanosciences & Nanotechnologies (NN) <11, 2014, Thessaloniki>
International Symposium on Flexible Organic Electronics (ISFOE) <7, 2014, Thessaloniki>
Fraunhofer ENAS ()

In this work, the novel method of intense pulsed light (IPL) sintering of a nanoparticle silver ink is presented. Various patterns are printed with the Inkjet technology on two flexible foils with different light spectra. One is a clear Polyethylenterephthalat [PET] foil and the second is a light brownish Polyimide [PI] foil. The samples are flashed with different parameters regarding to pulse intensity and pulse length. Microscopic images are indicating the impact of the flashing parameters and the different light spectra of the substrates on the sintered structures. Sheet and line resistance are measured and the conductivity is calculated. A high influence of the property of the substrate with respect to light absorption and thermal conductivity on the functionality of printed conductive structures could be presented With this new method of IPL sintering, highly conductive inkjet printed silver patterns could be manufactured within milliseconds on flexible polymeric foils without damaging the substrate.