Nanocrystal Superlattices, SEM
This hexagonal "stop sign" is about 17,000 times smaller than one you might see on the road! Scientists found these when they zoomed in on cadmium selenide nanocrystals that assembled themselves on top of a silicon wafer. The image, which has color added, is part of Argonne research into new materials that could lead to breakthroughs in technologies like computer memory and solar cells. Superlattices of prolate and spherical CdSe nanocrystals on silicon wafer. Cadmium selenide is an inorganic compound with the formula CdSe. Much of the current research on cadmium selenide is focused on its nanoparticles. A nanocrystal is a material particle having at least one dimension smaller than 100 nanometers (a nanoparticle) and composed of atoms in either a single-crystalline or poly-crystalline arrangement. A superlattice is a periodic structure of layers of two (or more) materials. Typically, the thickness of one layer is several nanometers. Nanotechnology (nanotech) is the manipulation of matter on an atomic, molecular, and supramolecular scale.
Size: 4200px × 3144px
Photo credit: © Photo Researchers / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: 2012, 21st, anl, argonne, art, cadmium, century, electron, em, engineering, hexagon, hexagonal, laboratory, materials, micrograph, microscopic, microscopy, molecular, nanocrystal, nanoparticle, nanostructure, nanotech, nanotechnology, national, research, scanning, science, selenide, sem, superlattice, superlattices, technological, technology
