Blades of grass inspire advance in organic solar cellsTue, 30 Sep 2014 14:42:58 EDT
Using a bio-mimicking analog of one of nature's most efficient light-harvesting structures, blades of grass, an international research team has taken a major step in developing long-sought polymer architecture to boost power-conversion efficiency of light to electricity for use in electronic devices. How to make a 'perfect' solar absorberTue, 30 Sep 2014 11:32:58 EDT
Researchers have developed a solar cell that can tap the sun's full radiation spectrum. The material is a two-dimensional metallic dielectric photonic crystal, and has the additional benefits of absorbing sunlight from a wide range of angles and withstanding extremely high temperatures. Perhaps most importantly, the material can also be made cheaply at large scales. Nitrogen fingerprint in biomolecules could be from early sunMon, 29 Sep 2014 15:45:39 EDT
The pattern of nitrogen in biomolecules like proteins, which differ greatly from that seen in other parts of the solar system, could have been generated by the interactions of light from the early sun with nitrogen gas in the nebula, long before Earth formed. Efficiently harvesting hydrogen fuel from Sun using Earth-abundant materialsThu, 25 Sep 2014 14:12:32 EDT
Scientists have a new efficient way of producing hydrogen fuel from sunlight and water. By combining a pair of solar cells made with a mineral called perovskite and low cost electrodes, scientists have obtained a 12.3 percent conversion efficiency from solar energy to hydrogen, a record using Earth-abundant materials as opposed to rare metals. World's smallest reference material is big plus for nanotechnologyThu, 25 Sep 2014 13:28:33 EDT
The National Institute of Standards and Technology recently issued Reference Material 8027, the smallest known reference material ever created for validating measurements of these human-made, ultrafine particles between 1 and 100 nanometers -- billionths of a meter -- in size.