In nanoelectronics, we are studying switching, routing, and signal processing using nanostructure devices that operate on principles different from scaled conventional transistors, including devices incorporating layers of organic molecules and reduced metal oxides.
Some key characteristics of our work in this area include:
- Using self-assembled nanostructures, such as metal-catalyzed nanowires, to reduce the need for expensive fine-scale, optical lithography to form the feature size while retaining the possibility of using coarser lithography to position devices.
- Slightly altering the stoichiometry of materials such as titanium dioxide to change its electrical conduction. Changes are induced electrically to create an electrochemical switch.
- With these devices and novel circuit techniques, we can obtain signal restoration (equivalent to gain).
- Defect tolerance enhances the yield of the resulting circuitry to allow acceptable circuit yields, even with high-defect density in the underlying components.