A sintering method for obtaining nanostructured conductive nanoparticle films, nanostructured conductive nanoparticle film obtainable thereby and their uses

In the last decade, inkjet printing became a popular fabrication technique in the felds of fexible electronics and biosensing, taking advantage of nanofunctional inks, typically composed of metal nanoparticles (MNPs). Despite its fexibility, high throughput and low cost, one of the unresolved issues of this technique is the need for additional post-print treatments to make the printed patterns conductive. Such post-print treatments are sintering methods.The present invention is in the nanostructured conductive metallic materials field.In particular, the present invention relates to a novel sintering method capable of preparing nanostructured, porous and conductive noble-metal nanoparticle films, suitable for inkjet printing nanostructured, porous and conductive metal nanoparticle films.According to the present invention, the sintering method is a chemical sintering that chemically sinters the nanoparticles and, almos at the same time, nanostructures the film.The present invnetion also relates to the nanostructured, porous and conductive noble-metal nanoparticle film as well as to a device comprising the same and uses thereof.