Full text: Download
Ionic-organic ratchets are asymmetric devices that allow for the generation of electrical power from electromagnetic noise signals by means of a charge pump mechanism. Here we present a new low-cost and flexible ionic-organic ratchet, based on aluminium foil and adhesive tape with graphite pencil-drawn source and drain electrodes. Two different electrode configurations are considered that allow the AC frequency response of the ratchets to modulate over two orders of magnitude.