Silicon Nanotubes
Single-Walled, Double Walled, Multi-Walled

Silicon (Si) Nanotubes, Single-Walled, Double Walled and Multi-Walled are tubular ultra high surface area nanotubes. Nanoscale Silicon Nanotubes are typically 10 - 100 nanometers (nm) with specific surface area (SSA) in the 10 - 75 m 2 /g range. Silicon Nanotubes are also available in coated and dispersed forms. They are also available as a nanofluid through the AE Nanofluid production group. Nanofluids are generally defined as suspended nanoparticles in solution either using surfactant or surface charge technology. Nanofluid dispersion and coating selection technical guidance is also available. Other nanostructures include nanorods, nanowhiskers, nanohorns, nanopyramids and other nanocomposites. Surface functionalized nanoparticles allow for the particles to be preferentially adsorbed at the surface interface using chemically bound polymers. Development research is underway in Nano Electronics and Photonics materials, such as MEMS and NEMS, Bio Nano Materials, such as Biomarkers, Bio Diagnostics & Bio Sensors, and Related Nano Materials, for use in Polymers, Textiles, Fuel Cell Layers, Composites and Solar Energy materials. Nanopowders are analyzed for chemical composition by ICP, particle size distribution (PSD) by laser diffraction, and for Specific Surface Area (SSA) by BET multi-point correlation techniques. Novel nanotechnology applications also include Quantum Dots. High surface areas can also be achieved using solutions and using thin film by sputtering targets and evaporation technology using pellets, rod and foil. Research into applications for Silicon Nanotubes includes use in luminescent display devises due to silicon's broader excitation spectra in the nanoscale range, as building blocks for single-nanoparticle electronic devices, in micro and integrated semiconductors, in solar energy cells, and in certain alloy applications . Additional technical, research and safety (MSDS) information is available.

Silicon is a Block P, Group 14, Period 3 element. The electronic configuration is [Ne] 3s² 3p². In its elemental form silicon's CAS number is 7440-21-3. The silicon atom has a radius of 117.6.pm and it's Van der Waals radius is 210.pm. Silicon is one of man's most useful elements. It makes up 25.7% of the earth's crust, by weight, and is the second most abundant element, being exceeded only by oxygen. The Czochralski process is commonly used to produce single crystals of silicon used for solid-state or semiconductor devices. Silica, as sand, is a principal ingredient of glass, one of the most inexpensive of materials with excellent mechanical, optical, thermal, and electrical properties.