Semiconductors convert energy from photons (light) into an electron current. However, some photons carry too much energy for the material to absorb. These photons produce "hot electrons," and the excess energy of these electrons ...
General Physics
Nov 15, 2019
0
367
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.
Nanophysics
Oct 8, 2019
1
810
(Phys.org) —Plasmonic nanoparticles developed at Rice University are becoming known for their ability to turn light into heat, but how to use them to generate electricity is not nearly as well understood.
Nanophysics
Jan 30, 2014
0
0
(PhysOrg.com) -- Basic scientific curiosity paid off in unexpected ways when Rice University researchers investigating the fundamental physics of nanomaterials discovered a new technology that could dramatically improve solar ...
Nanophysics
May 5, 2011
0
0
For the first time, engineers and scientists at Caltech have been able to directly observe the ultrafast motion of electrons immediately after they are excited with a laser—and found that these electrons diffuse into their ...
General Physics
Jun 16, 2017
0
336
A new class of high power lasers can effectively accelerate particles like electrons and ions with very intense, short laser pulses. This has attracted the interest of researchers around the globe, working out the details ...
General Physics
Nov 21, 2011
1
0
The emerging field of plasmonics could bring advances in chemical manufacturing, usher in new clean and sustainable technologies and desalination systems to avert a future global water crisis.
General Physics
Jun 2, 2017
5
299
Solar and renewable energy is getting hot, thanks to nanoscientists—those who work with materials smaller than the width of a human hair—at the U.S. Department of Energy's (DOE) Argonne National Laboratory who have discovered ...
General Physics
Dec 21, 2017
0
127
Scientists have gained new insights into a fundamental mystery about hybrid perovskites, low-cost materials that could enhance or even replace conventional solar cells made of silicon.
Materials Science
Mar 20, 2018
5
212
In a study that confirms its promise as the next-generation semiconductor material, UC Santa Barbara researchers have directly visualized the photocarrier transport properties of cubic boron arsenide single crystals.
Condensed Matter
Oct 24, 2022
0
210
