Researchers have quantified the significant value that concentrating solar power plants can add to an electric grid.
Metallurgists used an old microwave oven to produce a nanocrystal semiconductor rapidly using cheap, abundant and less toxic metals than other semiconductors. They hope it will be used for more efficient photovoltaic solar cells and LED lights, biological sensors and systems to convert waste heat to electricity.
Scientists have developed an algae removal and treatment system that turns this underused residue into a renewable source of energy: biomass. The process involves several stages of washing, drying and compacting without leaving the beach. The system is cheaper, more efficient and more environmentally friendly than the procedure commonly followed now.
Researchers have been able to improve the efficiency of solar cells by coating the cell surface with extremely small nanoscale structures. The new technology has been shown to nearly eliminate the reflection losses of solar radiation.
Researchers have designed a low-cost, long-life battery that could enable solar and wind energy to become major suppliers to the electrical grid.
Revolutionary new device joins world of smart electronics: New flexible, transparent, photosensitive device
Smart electronics are taking the world by storm. From techno-textiles to transparent electronic displays, the world of intelligent technology is growing fast and a revolutionary new device has just been added to its ranks. Researchers have developed a new photoelectric device that is both flexible and transparent.
Throughout decades of research on solar cells, one formula has been considered an absolute limit to the efficiency of such devices in converting sunlight into electricity: Called the Shockley-Queisser efficiency limit, it posits that the ultimate conversion efficiency can never exceed 34 percent for a single optimized semiconductor junction. Now, researchers have shown that there is a way to blow past that limit as easily as today’s jet fighters zoom through the sound barrier — which was also once seen as an ultimate limit.
New research fuels hope of efficient hydrogen production with green algae may be possible in the future, despite the prevailing scepticism based on previous research.