- About Us
- Career Center
- Nano-Social Network
- Nano Consulting
- My Account
Magic Trick with Gold and GlassNovember 07, 2005
Even the ancient Romans were familiar with processes for coloring glass by adding gold. Initially colorless, the glass takes on a ruby-red color when heated in a controlled fashion. The source of this color is finely divided gold clusters. The light absorption depends on the concerted oscillation of the conducting electrons in all of the gold atoms in the cluster, called plasmon oscillation. Variation of the size, shape, or electrical properties of the particles’ surroundings should influence the frequency of the oscillation and thus the color of the absorbed light. This could allow for the production of materials that are suitable for use in nanophotonic components, including tiny optoelectronic circuits or optical storage devices.
Author: Klaus Rademann, Humboldt-Universität zu Berlin (Germany),
Title: On the Chemistry of Gold in Silicate Glasses: Studies on a Nonthermally Activated Growth of Gold Nanoparticles
Angewandte Chemie International Edition, doi: 10.1002/anie.200502174
or David Greenberg (US)
or Julia Lampam (UK)
Copyright © Angewandte Chemie
If you have a comment, please Contact us.
Issuers of news releases, not 7th Wave, Inc. or Nanotechnology Now, are solely responsible for the accuracy of the content.
A novel method for identifying the body’s ‘noisiest’ networks November 19th, 2014
Researchers discern the shapes of high-order Brownian motions November 17th, 2014
Open Materials Development Will Be Key for HP's Success in 3D Printing: HP can make a big splash in 3D printing, but it needs to shore up technology claims and avoid the temptation of the razor/razor blade business model in order to flourish November 11th, 2014
Aculon Hires New Business Development Director December 19th, 2014
ORNL microscopy pencils patterns in polymers at the nanoscale December 17th, 2014
Pb islands in a sea of graphene magnetise the material of the future December 16th, 2014
Graphene Applied in Production of Recyclable Electrodes December 13th, 2014
Quantum physics just got less complicated December 22nd, 2014
Enzyme Biosensor Used for Rapid Measurement of Drug December 22nd, 2014