Electrical characterization of ink-jet printed organic capacitors on flexible substrate

The present paper describes the fabrication and electrical characterization of printed capacitors using polyvinylphenol (PVP) as dielectric. The recently developed drop-on-demand inkjet printing technology was used to fabricate the components. The printing ink SunTronic EMD 5603 with silver nanoparticles was used to deposit the capacitors’ plates. Two different types of structures have been produced. One structure has a single layer of PVP dielectric material, while the second capacitor has two layers of insulating material. The aim of the work was to determine the influence of the dielectric thickness on the overall capacity of the device. The structures were submitted to thermal curing treatment prior to measurements. The measured capacity of the devices ranges from 40pF to 400pF depending on the thickness of the dielectric layer.