Solar-cell efficiency improved with new polymer devicesFri, 19 Sep 2014 14:28:43 EDT
New light has been shed on solar power generation using devices made with polymers. Researchers identified a new polymer -- a type of large molecule that forms plastics and other familiar materials -- which improved the efficiency of solar cells. The group also determined the method by which the polymer improved the cells' efficiency. The polymer allowed electrical charges to move more easily throughout the cell, boosting the production of electricity -- a mechanism never before demonstrated in such devices. Superabsorbing ring could make light work of snaps, be ultimate camera pixelFri, 19 Sep 2014 10:08:50 EDT
A quantum effect in which excited atoms team up to emit an enhanced pulse of light can be turned on its head to create 'superabsorbing' systems that could make the 'ultimate camera pixel'. A more efficient, lightweight and low-cost organic solar cell: Researchers broke the 'electrode barrier'Thu, 18 Sep 2014 14:14:52 EDT
For decades, polymer scientists and synthetic chemists working to improve the power conversion efficiency of organic solar cells were hampered by the inherent drawbacks of commonly used metal electrodes, including their instability and susceptibility to oxidation. Now for the first time, researchers have developed a more efficient, easily processable and lightweight solar cell that can use virtually any metal for the electrode, effectively breaking the 'electrode barrier.' X-ray imaging paves way for novel solar cell productionTue, 09 Sep 2014 11:33:36 EDT
The sharp X-ray vision of DESY's research light source PETRA III paves the way for a new technique to produce cheap, flexible and versatile double solar cells. The method can reliably produce efficient tandem plastic solar cells of many meters in length. Sun-powered desalination for villages in IndiaMon, 08 Sep 2014 09:37:49 EDT
Around the world, there is more salty groundwater than fresh, drinkable groundwater. For example, 60 percent of India is underlain by salty water -- and much of that area is not served by an electric grid that could run conventional reverse-osmosis desalination plants. Sun-powered desalination could deliver clean water for off-grid villages.