Fireking300 writes: A paper on the breakthrough appears in the Dec. 16 issue of Science Magazine. Titled “Peak External Photocurrent Quantum Efficiency Exceeding 100 percent via MEG in a Quantum Dot Solar Cell,” it is co-authored by NREL scientists Octavi E. Semonin, Joseph M. Luther, Sukgeun Choi, Hsiang-Yu Chen, Jianbo Gao, Arthur J. Nozikand Matthew C. Beard. The research was supported by the Center for Advanced Solar Photophysics, an Energy Frontier Research Center funded by the DOE Office of Science, Office of Basic Energy Sciences. Semonin and Nozik are also affiliated with the University of Colorado at Boulder. The researchers achieved the 114 percent external quantum efficiency with a layered cell consisting of antireflection-coated glass with a thin layer of a transparent conductor, a nanostructured zinc oxide layer, a quantum dot layer of lead selenide treated with ethanedithol and hydrazine, and a thin layer of gold for the top electrode.
twoheadedboy writes: "The two biggest ISPs in the UK are losing thousands of customers. Earlier this week Virgin reported it had lost 36,000 cable broadband customers. BT, meanwhile, has seen around 125,000 active consumer line customers flee this quarter. With that many customers leaving, where are they going?"
from the oh-they-all-say-that dept.
MaxBooger writes "LulzSec, the notorious hacker group that's been on a rampage, just announced that it's disbanding. This follows 50 days' chaos during which time it took down several websites (including CIA.gov at one point), exposed passwords, exposed documents of the Arizona penal system, and at one point threatened to hit Too Big To Fail banks. Obviously, it's possible that the group will not abide by its promise to quit. Nobody knows."
yosofun writes: From a quick viewsource, any casual user can easily see that Google.com is missing the closing HTML and BODY tags (Load up the page. View Source. Use the Find feature in your browser, and search for "</html>" or "</body>"). Why?
nunojsilva writes "Cory Doctorow reports that the Brazilian equivalent of DMCA explicitly forbids using DRM-like techniques on works in the public domain. 'Brazil has just created the best-ever implementation of WCT [WIPO Copyright Treaty]. In Brazil's version of the law, you can break DRM without breaking the law, provided you're not also committing a copyright violation.' This means that, unlike the US, where it is illegal to break DRM, in Brazil it is illegal to break the public domain."
from the thin-gold-plating dept.
Nemilar writes "It's been about a week since Apple rolled out its new advertising platform, and developers of iPhone apps are watching the earliest returns to see how much money they can expect to make from these ads. One developer reported Thursday that he earned $1,400 in one day for his flashlight app. The amount iAds pay is 'a high number when you get it, but you don't get it very often,' said Dave Yonamine, the director of marketing at MobilityWare. The article discusses revenue potential in relation to the only other mobile ads platform, AdMob for Android, and claims that iAd paid as much as $148 for the same number of ads as $1 on AdMob; but this extreme ratio is likely to erode as the novelty wears off."
from the penguins-with-guns dept.