Photographer Olivier Grunewald first learned about the Kawah Ijen volcano in 2008. A sulfur mine by day, this infernal Indonesian mountain turns into a surreal alien landscape when the night comes. His pictures—taken in very dangerous conditions—are stunning:
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Every 19 gallons of petroleum we refine leaves behind a half pound of sulfur byproduct—far more than we can even pretend to have use for. Luckily, some ingenious researchers at the University of Arizona, may have devised a solution that transforms the rancid yellow element into a new breed of battery. More »
We see a lot of sleek-looking technology pass through our doors, but it’s rare that the inventions could be called beautiful by those who aren’t immersed in the gadget world. We’d venture that North Carolina State University might have crossed the divide by creating an energy storage technology that’s both practical and genuinely pretty. Its technology vaporizes germanium sulfide and cools it into 20-30 nanometer layers that, as they’re combined, turn into nanoflowers: elegant structures that might look like the carnation on a prom dress or tuxedo, but are really energy storage cells with much more capacity than traditional cells occupying the same area. The floral patterns could lead to longer-lived supercapacitors and lithium-ion batteries, and the germanium sulfide is both cheap and clean enough that it could lead to very efficient solar cells that are more environmentally responsible. As always, there’s no definite timetable for when (and if) NC State’s technology might be commercialized — so call someone’s bluff if they promise you a nanoflower bouquet.
Filed under: Science
NC State nanoflowers can boost battery and solar cell capacity, make great prom accessories originally appeared on Engadget on Thu, 11 Oct 2012 20:37:00 EDT. Please see our terms for use of feeds.
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Generating solar power from the infrared spectrum, or even nearby frequencies, has proven difficult in spite of a quarter of the Sun’s energy passing through those wavelengths. The Fraunhofer Institute for Telecommunications may have jumped that hurdle to efficiency through sulfur — one of the very materials that solar energy often helps eliminate. By irradiating ordinary silicon through femtosecond-level laser pulses within a sulfuric atmosphere, the technique melds sulfur with silicon and makes it easier for infrared light electrons to build into the frenzy needed for conducting electricity. The black-tinted silicon that results from the process is still in the early stages and needs improvements to automation and refinement to become a real product, but there’s every intention of making that happen: Fraunhofer plans a spinoff to market finished laser systems for solar cell builders who want their own black silicon. If all goes well, the darker shade of solar panels could lead to a brighter future for clean energy.
Fraunhofer black silicon could catch more energy from infrared light, go green with sulfur originally appeared on Engadget on Thu, 04 Oct 2012 05:32:00 EDT. Please see our terms for use of feeds.
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