Functionalization of silicon nanowires with transition metal atoms

Scattering cross section of metal catalyst atoms in silicon nanowires

Metal-semiconductor nanocontacts: silicon nanowires

Silicon nanowires assembled from clusters or etched from the bulk, connected to aluminum electrodes and passivated, are studied with large-scale local-density-functional simulations. Short ( approximately 0.6 nm) wires are fully metallized by metal-induced gap states resulting in finite conductance ( approximately e(2)/h). For longer wires ( approximately 2.5 nm) nanoscale Schottky barriers dev...

Functionalization of Silicon Nanowire Surfaces with Metal–Organic Frameworks

Metal–organic frameworks (MOFs) and silicon nanowires (SiNWs) have been extensively studied due to their unique properties; MOFs have high porosity and specific surface area with well-defined nanoporous structure, while SiNWs have valuable one-dimensional electronic properties. Integration of the two materials into one composite could synergistically combine the advantages of both materials and...

Electrochemically Programmed, Spatially Selective Functionalization of Silicon Nanowires

Selective surface functionalization of silicon nanowires via nanoscale joule heating.

In this letter, we report a novel approach to selectively functionalize the surface of silicon nanowires located on silicon-based substrates. This method is based upon highly localized nanoscale Joule heating along silicon nanowires under an applied electrical bias. Numerical simulation shows that a high-temperature (>800 K) with a large thermal gradient can be achieved by applying an appropria...