Oxide electronics has potential applications in future mobile communication gadgets, mobile health devices, body sensors, and large area flexible electronics. Oxides fabricated by electrochemical anodisation offer properties essential for fabrication of electronic components, sensors, and functional surfaces. This work is concerned with the fabrication and structuring of such anodic oxides and its application for flexible oxide electronics on plastics.
By extending anodisation into a printing process by means of the Scanning Droplet Cell Microscopy (SDCM) technology, it enables 2D patterning of metal-oxide structures. Expanding this idea into the third dimension leads to a rapid prototyping process for 3D structures, much like 3D-printing. The deposition and growth of metals and oxides is addressed via in depth electrochemical growth studies of anodic oxides on different substrates, such as plastic, glass, and silicon substrates. The fabricated oxides where then integrated into organic amplifiers for biological signals detection on the human body. The high quality of the employed oxide enabled significant advances in signal transmission. Therefore it becomes possible to record data over the whole range of frequencies found in human body signals. The possibilities of anodic oxides as a building block for oxide electronics were further exploited by fabrication of more complex circuit elements, including memristors, diodes, multilayer capacitors, and rectifiers. Through this development the technology becomes ready to advance into applications with more complex circuitry and devices.
This works opens new avenues for anodisation, by showing its potential for the fabrication of plastic oxide electronics.