New electron-beam writing technique controls electronic properties for future on-demand re-configurable electronics.
In movies and television series, audio tapes or other devices self-destruct after delivering the details of impossible missions. Scientists at the Georgia Institute of Technology have taken it to a new level with an electron-beam writing technique that induces the deposition of carbon on a graphene surface. The deposits control the material’s nanoscale electronic properties and create junctions between electron-rich (where the carbon was deposited) and electron-deficient regions. These junctions could enable nanoscale electronics. Over time, the deposited carbon diffuses on the surface, which could dynamically change how the device functions.
This electron-beam technique allows for nanoscale engineering of future graphene-based devices for information and energy storage, sensors, as well as nanoelectronics that could be re-configurable with dynamic function.