![](http://www.alamy.com/thumbs/6/DEA37C4E-33E7-4B66-9F9D-8B916BA45757/HRJK4W.jpg)
Silicon Nanowire, TEM
In this transmission electron micrograph, a silicon nanowire is shown surrounded by a stack of thin layers of material called dielectrics, which store electrical charge. NIST scientists determined the best arrangement for this dielectric stack for the optimal construction of silicon nanowire-based memory devices. A nanowire is a nanostructure, with the diameter of the order of a nanometer. It can also be defined as the ratio of the length to width being greater than 1000. Alternatively, nanowires can be defined as structures that have a thickness or diameter constrained to tens of nanometers or less and an unconstrained length. A dielectric material (dielectric for short) is an electrical insulator that can be polarized by an applied electric field.
Size: 3600px × 3354px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: a12o3, aluminum, crystalline, dielectric, dioxide, electrical, hafnium, hf02, insulator, material, nanoelectronics, nanometer, nanostructure, nanotech, nanotechnology, nanowire, oxide, science, silica, silicon, sinw, sio2, solid, state