World news

Results: 32792
arrow_upward arrow_downward

Modified quantum dots capture more energy from light and lose less to heat

Nanowerk   -   Nanotechnology Websites

Researchers discover a new approach for capturing energy from light-generated, 'hot' electrons, avoiding wasteful heat loss.

Oct 8, 2019

Modified quantum dots capture more energy from light and lose less to heat

Phys.org   -   Scientific News Websites

Los Alamos National Laboratory scientists have synthesized magnetically-doped quantum dots that capture the kinetic energy of electrons created by ultraviolet light before it's wasted as heat.

Oct 8, 2019

Rare 'Lazarus superconductivity' observed in promising, rediscovered material

ScienceDaily   -   General News Websites

A team of researchers has observed a rare phenomenon called re-entrant superconductivity in the material uranium ditelluride. Nicknamed 'Lazarus superconductivity,' the phenomenon occurs when a superconducting state arises, breaks down, ...

Oct 7, 2019

Modified quantum dots capture more energy from light and lose less to heat

ScienceDaily   -   General News Websites

Scientists have synthesized magnetically-doped quantum dots that capture the kinetic energy of electrons created by ultraviolet light before it's wasted as heat.

Oct 7, 2019

New Metasurface Design Can Control Optical Fields in Three Dimensions – No Classical Analog in Refractive Optics

SciTechDaily   -   Scientific News Websites

A team led by scientists at the University of Washington has designed and tested a 3D-printed metamaterial that can manipulate light with nanoscale precision. As... The post New Metasurface Design Can Control Optical Fields in Three Dimensions – N...

Oct 7, 2019

Electrode-fitted microscope points to better designed devices that make fuel from sunlight

ScienceDaily   -   General News Websites

Using an atomic-force microscope fitted with an electrode tip 1,000 times smaller than a human hair, researchers have identified in real time how nanoscale catalysts collect charges that are excited by light in semiconductors. It's a discover...

Oct 7, 2019

Diagnosing cellular nanomechanics

MIT News   -   Organizations and Universities Websites

SMART has developed a new way to study cells, paving the way for a better understanding of how cancers spread and become deadly.

Oct 7, 2019

Electrode-fitted microscope points to better designed devices that make fuel from sunlight

Phys.org   -   Scientific News Websites

Using an atomic-force microscope fitted with an electrode tip 1,000 times smaller than a human hair, University of Oregon researchers have identified in real time how nanoscale catalysts collect charges that are excited by light in semiconductors.

Oct 7, 2019

Electrode-fitted microscope points to better designed devices that make fuel from sunlight

Nanowerk   -   Nanotechnology Websites

Researchers find that smaller catalytic nanoparticles may be vital for many kinds of devices that convert solar energy into chemical fuels like hydrogen gas.

Oct 7, 2019

Bacteria trapped -- and terminated -- by graphene filter: Laser-induced graphene to remove pathogens from the air

ScienceDaily   -   General News Websites

Chemists transform their laser-induced graphene into an air filter that not only traps pathogens but also kills them with a small blast of electricity.

Oct 7, 2019

REFINE