Glimpsing pathway of sunlight to electricityThu, 18 Dec 2014 15:45:48 EST
Four pulses of laser light on nanoparticle photocells in a spectroscopy experiment has opened a window on how captured sunlight can be converted into electricity. The work, which potentially could inspire devices with improved efficiency in solar energy conversion, was performed on photocells that used lead-sulfide quantum dots as photoactive semiconductor material. Comparing state solar policies to determine equation for solar market successTue, 16 Dec 2014 11:30:29 EST
Scientists have used statistical analyses and detailed case studies to better understand why solar market policies in certain states are more successful. Their findings indicate that while no standard formula for solar implementation exists, a combination of foundational policies and localized strategies can increase solar photovoltaic installations in any state. Nuclear should be in the energy mix for biodiversityMon, 15 Dec 2014 09:41:55 EST
Leading conservation scientists from around the world have called for a substantial role for nuclear power in future energy-generating scenarios in order to mitigate climate change and protect biodiversity. Stacking two-dimensional materials may lower cost of semiconductor devicesThu, 11 Dec 2014 11:55:16 EST
A team of researchers has found that stacking materials that are only one atom thick can create semiconductor junctions that transfer charge efficiently, regardless of whether the crystalline structure of the materials is mismatched -- lowering the manufacturing cost for a wide variety of semiconductor devices such as solar cells, lasers and LEDs. New technique could harvest more of the sun's energyTue, 09 Dec 2014 10:18:55 EST
As solar panels become less expensive and capable of generating more power, solar energy is becoming a more commercially viable alternative source of electricity. However, the photovoltaic cells now used to turn sunlight into electricity can only absorb and use a small fraction of that light, and that means a significant amount of solar energy goes untapped. A new technology represents a first step toward harnessing that lost energy.