Publications by authors named "U Sassi"
Terahertz time-domain spectroscopy (THz-TDS) can be used to map spatial variations in electrical properties such as sheet conductivity, carrier density, and carrier mobility in graphene. Here, we consider wafer-scale graphene grown on germanium by chemical vapor deposition with non-uniformities and small domains due to reconstructions of the substrate during growth. The THz conductivity spectrum matches the predictions of the phenomenological Drude-Smith model for conductors with non-isotropic scattering caused by backscattering from boundaries and line defects.
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- Conventional top-down lithography struggles to reliably create devices at atomic scales, while bottom-up methods allow for the production of identical molecules and nanoparticles that can self-assemble on surfaces.
- A new scalable method has been developed to connect a self-assembled monolayer of nanoparticles with a layer of graphene, facilitating the integration of these nanoscale objects into electronic circuits.
- This technique achieves a high yield of single-electron effects with significant potential applications in electronics, such as memory, switches, sensors, and thermoelectric generators.
Hard disk drives (HDDs) are used as secondary storage in digital electronic devices owing to low cost and large data storage capacity. Due to the exponentially increasing amount of data, there is a need to increase areal storage densities beyond ~1 Tb/in. This requires the thickness of carbon overcoats (COCs) to be <2 nm.
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