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Nanomaterial developed to speed up light

May 6, 2013 By MaterialsViews staff Leave a Comment

100-nanometer-long “meta-atom” of gold and silicon oxide is capable of straightening and speeding up light waves.

Filed Under: Nano, Photonics, Research Tagged With: gold, meta-atoms, metal oxides, Missouri University of Science and Technology, Physical Review B, silicon oxide

Link to the original paper

Nanoparticle chain assembly observed in situ

May 2, 2013 By MaterialsViews staff Leave a Comment

Argonne scientists see nanoparticles form larger structures in real time.

Filed Under: Nano, Research Tagged With: Argonne National Laboratory, characterization, gold, Journal of the American Chemical Society, nanoparticles, self-assembly

Link to the original paper

Palladium-gold catalysts find application in environmental cleanup

April 25, 2013 By MaterialsViews staff Leave a Comment

When chloroform-contaminated water is flowed through a column containing PGClear pellets, the palladium and gold in the pellets spurs a chemical reaction that breaks down chloroform into nontoxic methane and chloride salt. Jeff Fitlow/Rice University.

US government-funded research pays off with new process for environmental remediation.

Filed Under: Chemical production, Environment, Industry, Research Tagged With: catalysis, DuPont, gold, palladium, Rice University, Stanford University, water pollution

Welding polymers using nanofibers and light

April 15, 2013 By MaterialsViews staff Leave a Comment

Researchers from North Carolina State University have developed a way to melt or “weld” specific portions of polymers by embedding aligned nanoparticles within the materials.

Filed Under: Nano, Polymers, Research Tagged With: composites, gold, nanorods, Particle & Particle Systems Characterization

Link to the original paper on Wiley Online Library

Semiconductor-free photovoltaics use nanotechnology to make energy

March 8, 2013 By MaterialsViews staff Leave a Comment

The process by which light is captured by the gold nanorod, and converted into energy that can spilt water (H2O) into hydrogen and oxygen. Image: Syed Mubeen.

A new method of harvesting solar energy is emerging, which makes use of gold nanorods instead of traditional semiconductor technology.

Filed Under: Energy research, Nano, Research Tagged With: energy generation, gold, nanorods, Nature Nanotechnology, photovoltaics, solar cells, UC Santa Barbara

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Nanoparticles reach new peaks

January 14, 2013 By MaterialsViews staff Leave a Comment

Different types of nanoparticles – in this case, shells, rods and solid spheres – mixed together can be activated individually with pulsed laser light at different wavelengths, according to researchers at Rice University. The tuned particles’ plasmonic response, enhanced by nanobubbles that form at the surface, can be narrowed to a few nanometers under a spectroscope and are easily distinguishable from each other. Image: Lapotko Group/Rice University.

Rice University researchers show short laser pulses selectively heat gold nanoparticles.

Filed Under: Nano, Research Tagged With: Advanced Materials, colloids, gold, lasers, Rice University

Link to the original paper on Wiley Online Library

Research discovery could revolutionise semiconductor manufacture

November 30, 2012 By MaterialsViews staff Leave a Comment

A new method of manufacturing the smallest structures in electronics could make their manufacture many times quicker, allowing for cheaper semiconductors.

Filed Under: Electronics research, Nano, Research Tagged With: gold, nanoparticles, Nature, semiconductors

Link to the original paper