Steam energy from the sun: New spongelike structure converts solar energy into steamThu, 24 Jul 2014 21:39:57 EDT
A new material structure generates steam by soaking up the sun. The structure -- a layer of graphite flakes and an underlying carbon foam -- is a porous, insulating material structure that floats on water. When sunlight hits the structure's surface, it creates a hotspot in the graphite, drawing water up through the material's pores, where it evaporates as steam. The brighter the light, the more steam is generated. How to power California with wind, water and sunThu, 24 Jul 2014 14:43:16 EDT
New research outlines the path to a possible future for California in which renewable energy creates a healthier environment, generates jobs and stabilizes energy prices. Spinach could lead to alternative energy more powerful than PopeyeWed, 23 Jul 2014 15:20:23 EDT
Spinach gave Popeye super strength, but it also holds the promise of a different power for a group of scientists: the ability to convert sunlight into a clean, efficient alternative fuel. Physicists are using spinach to study the proteins involved in photosynthesis, the process by which plants convert the sun's energy into carbohydrates used to power cellular processes. Artificial photosynthesis could allow for the conversion of solar energy into renewable, environmentally friendly hydrogen-based fuels. Self-cooling solar cells boost power, last longerTue, 22 Jul 2014 10:22:39 EDT
Scientists may have overcome one of the major hurdles in developing high-efficiency, long-lasting solar cells -- keeping them cool, even in the blistering heat of the noonday sun. By adding a specially patterned layer of silica glass to the surface of ordinary solar cells, a team of researchers has found a way to let solar cells cool themselves by shepherding away unwanted thermal radiation. Cheap, highly efficient solar cells: A new stable and cost-cutting type of perovskite solar cellThu, 17 Jul 2014 15:15:35 EDT
Scientists have made a very efficient perovskite solar cell that does not require a hole-conducting layer. The novel photovoltaic achieved energy conversion efficiency of 12.8 percent and was stable for over 1000 hours under full sunlight. The innovation is expected to significantly reduce the cost of these promising solar cells.