Monday, July 30, 2012
Researchers have calculated how much electricity can be generated using power-generating windows, so-called luminescent solar concentrators. These are windows which have been fitted with a thin film of material that absorbs sunlight and directs it to narrow solar cells at the perimeter of the window. New research shows the relationship between the color of the material used and the maximum amount of power that can be generated. Such power-generating windows offer potential as a cheap source of solar energy.
Saturday, July 28, 2012
Using a nanowire substrate to anchor advanced photovoltaic materials, researchers are able to alleviate strains between materials that otherwise would shorten life spans for photovoltaic products.
Friday, July 27, 2012
TV as thin as a sheet of paper? Printable flexible electronics just became easier with stable electrodes
Researchers have introduced what appears to be a universal technique to reduce the work function of a conductor. Their use in printable electronics can pave the way for lower cost and more flexible devices.
Thursday, July 26, 2012
In 1969, an exploding fireball tore through the sky over Mexico, scattering thousands of pieces of meteorite across the state of Chihuahua. More than 40 years later, the Allende meteorite is still serving the scientific community as a rich source of information about the early stages of our solar system's evolution. Recently, scientists discovered a new mineral embedded in the space rock -- one they believe to be among the oldest minerals formed in the solar system.
Tuesday, July 24, 2012
Researchers are edging toward the creation of new optical technologies using "nanostructured metamaterials" capable of ultra-efficient transmission of light, with potential applications including advanced solar cells and quantum computing.
Monday, July 23, 2012
An unappreciated aspect of chemical reactions on the surface of metal oxides could be key in developing more efficient energy systems, including more productive solar cells or hydrogen fuel cells efficient enough for automobiles.
Saturday, July 21, 2012
Using tiny solar-panel-like cells surgically placed underneath the retina, scientists have devised a system that may someday restore sight to people who have lost vision because of certain types of degenerative eye diseases.
Friday, July 20, 2012
Researchers have found a way to create much slimmer thin-film solar cells without sacrificing the cells' ability to absorb solar energy. Making the cells thinner should significantly decrease manufacturing costs for the technology.
Wednesday, July 18, 2012
Doping may be a no-no for athletes, but researchers say it was key in getting unprecedented power conversion efficiency from a new graphene solar cell created in their lab.
Tuesday, July 17, 2012
The energy generated from our oceans could be doubled using new methods for predicting wave power. New research could pave the way for significant advancements in marine renewable energy, making it a more viable source of power. The researchers devised a means of accurately predicting the power of the next wave in order to make the technology far more efficient, extracting twice as much energy as is currently possible.
Sunday, July 15, 2012
Scientists have developed solar cells capable of producing sufficient power to operate electronic sensor systems underwater at depths of nine meters.
Saturday, July 14, 2012
New research is seeking to detail the individual steps of highly efficient reactions that convert sunlight into chemical energy within plants and bacteria.
Thursday, July 12, 2012
Taking solar technology up a notch: New inexpensive, environmentally friendly solar cell shines with potential
The limitations of conventional and current solar cells include high production cost, low operating efficiency and durability, and many cells rely on toxic and scarce materials. Researchers have now developed a new solar cell that, in principle, will minimize all of these solar energy technology limitations. In particular, the device is the first to solve the problem of the Grätzel cell, a promising low-cost and environmentally friendly solar cell with a significant disadvantage: it leaks. The dye-sensitized cell's electrolyte is made of an organic liquid, which can leak and corrode the solar cell itself.
Wednesday, July 11, 2012
Scientist have developed a new high-throughput method to identify electrocatalysts for water oxidation.
Monday, July 9, 2012
Saturday, July 7, 2012
Solar generation surged past wind power to become the renewable energy technology of choice for global investors in 2011. Solar attracted nearly twice as much investment as wind, driving the renewable energy sector to yet another record-breaking year, albeit one beset with challenges for the industry, according to two new reports.
Thursday, July 5, 2012
Scientists have developed, using nanotechnology, a device with semiconductor materials which generate hydrogen independently in water using only sunlight. This technology, which has been named artificial photosynthesis, was inspired by photosynthesis which occurs naturally. The device is submerged in an aqueous solution which, when illuminated with a light source, forms hydrogen gas bubbles.