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Enhancing solar cells with nanoparticles
Dec 23, 2008 |
4.8 / 5 (10) |
6
Deriving plentiful electricity from sunlight at a modest cost is a challenge with immense implications for energy, technology, and climate policy. A paper in a special energy issue of Optics Express, the Optical Society's (OSA) ...
Physicists Transmit Light through Opaque Materials
Aug 18, 2008 |
4.7 / 5 (47) |
6
No matter how thick an opaque "scattering material" is, physicists have shown how to weave light through tiny open channels in the material, so that the light passes through on the other side.
Perfect Vision But Blind To Light
Biology /
Jun 11, 2008 |
4.7 / 5 (20) |
7
Mammals have two types of light-sensitive detectors in the retina. Known as rod and cone cells, they are both necessary to picture their environment. However, researchers at the Salk Institute for Biological ...
Molecules Under Hammer
Biology /
Feb 13, 2007 |
4.5 / 5 (2) |
0
How do you get information from a preparation that is transparent? How can you still see a three-dimensional image through a microscope? Dutch researcher Rajesh S. Pillai investigated a new way of illuminating ...
Popcorn-ball design doubles efficiency of dye-sensitized solar cells
Nanotechnology / Nanomaterials
Apr 10, 2008 |
4.7 / 5 (47) |
3
A new approach creates a dramatic improvement in cheap solar cells now being developed in laboratories.
How the Moon produces its own water
Space & Earth / Space Exploration
Oct 15, 2009 |
4.7 / 5 (15) |
6
(PhysOrg.com) -- The Moon is a big sponge that absorbs electrically charged particles given out by the Sun. These particles interact with the oxygen present in some dust grains on the lunar surface, producing ...
New Twist on Favorite X-ray Technique Promises Ultrafast Molecular Studies
Oct 12, 2009 |
4 / 5 (5) |
1
(PhysOrg.com) -- A team of physicists from the Stanford Synchrotron Radiation Lightsource, including graduate student David Bernstein, have made a promising discovery that a well-known synchrotron technique ...
Hot Electrons Could Double Solar Cell Power Efficiency
Dec 18, 2009 |
4.3 / 5 (15) |
2
Scientists have experimentally verified a theory suggesting that hot electrons could double the output of solar cells. The researchers, from Boston College, have built solar cells that successfully use hot ...
Exoplanet atmospheres detected from Earth for the first time
Jan 14, 2009 |
4.5 / 5 (12) |
4
(PhysOrg.com) -- Transiting exoplanets are routinely detected when they pass in front of their parent star as viewed from the Earth, which only happens by chance. The transit event causes a small drop in the ...
A New Cloaking Method: This is not a 'Star Trek' or 'Harry Potter' Story (w/ Video)
Aug 17, 2009 |
4.4 / 5 (13) |
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(PhysOrg.com) -- University of Utah mathematicians developed a new cloaking method, and it's unlikely to lead to invisibility cloaks like those used by Harry Potter or Romulan spaceships in "Star Trek." Instead, ...
Rice scientists unveil 'nanoegg'
Nanotechnology / Nanomaterials
Jul 20, 2006 |
2.9 / 5 (16) |
0
Researchers at Rice University's Laboratory for Nanophotonics (LANP) have unveiled the "nanoegg," the latest addition to their family ultrasmall, light-focusing particles. A cousin of the versatile nanoshell, nanoeggs are ...
Researchers create fiber webs that see
Nanotechnology / Nanomaterials
Jul 17, 2006 |
4.3 / 5 (25) |
0
In a radical departure from conventional lens-based optics, MIT scientists have developed a sophisticated optical system made of mesh-like webs of light-detecting fibers. The fiber constructs, which have a number of advantages ...
A light touch: Iron complexes as efficient catalysts for the light-driven extraction of hydrogen from water
Dec 02, 2009 |
5 / 5 (4) |
3
(PhysOrg.com) -- Hydrogen is a promising alternative energy carrier that can be efficiently converted into electrical energy in fuel cells. One hurdle to the introduction of sustainable hydrogen technology is the fact that ...
Regular Light Bulbs Made Super-Efficient with Ultra-Fast Laser
May 29, 2009 |
4.4 / 5 (40) |
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(PhysOrg.com) -- An ultra-powerful laser can turn regular incandescent light bulbs into power-sippers, say optics researchers at the University of Rochester. The process could make a light as bright as a 100-watt ...
MIT researchers create visionary optic fibers
Jul 07, 2006 |
4.8 / 5 (57) |
0
In a radical departure from conventional lens-based optics, MIT scientists have developed a sophisticated optical system made of mesh-like webs of light-detecting fibers. The fiber constructs, which have a ...
