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(PhysOrg.com) -- Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited with photons from the high energy region of the solar spectrum.

(PhysOrg.com) -- Researchers from the National Renewable Energy Laboratory (NREL) have reported the first solar cell that produces a photocurrent that has an external quantum efficiency greater than 100 percent when photoexcited with photons from the high energy region of the solar spectrum.

Feeling sluggish? Try these simple steps to get that extra push you need to close the deal.

Last month, the preparations for the assembly of the NOvA neutrino detector passed a pivotal test in an assembly building at the Department of Energy’s Fermi National Accelerator Laboratory.

(PhysOrg.com) -- Researchers at the U.S. Department of Energy’s (DOE) Brookhaven National Laboratory and the Universidad San Francisco de Quito in Ecuador have found that, at just the right temperatures, nanoclusters form and improve the flow of electrical current through certain oxide materials.

A safe, reliable, and affordable way to store energy using sodium rather than lithium, by Aquion Energy. Power grab To make the most of solar and wind power, utilities need an affordable way to store energy for later use

A site started by travel and search industry veterans--including Calvin Yang, who designed Google's image search--gives users a peek at what's inside and outside of a hotel room, before they arrive.

Scientists have shown the energy conditions, under which a weak signal supplied to a physical system emerges as a stronger signal at the output thanks to the presence of random noise (a process known as stochastic resonance), in a paper that has just been published in European Physical Journal B.

Two serial entrepreneurs set out to succeed where Pets.com failed. It's worked -- so far -- because they've followed these key principles. At first glance , Alex Zhardanvosky and Joe Speiser don’t practice the “stick to your core competencies” mantra they preach.

Another sci-fi dream deferred: Funding gave out before the six-year-old startup could perfect its futuristic three-wheeler. Electric car startup Aptera's futuristic three-wheeled two-seater won't be rolling off production lines anytime soon – the company has run out of gas. The company has failed to come up with enough money to produce the cars, reportedly raising only around $40 million of the $150 million it needed for a federal matching grant to keep operating.The grant would have let the company produce an all-electric four-wheel, five-passenger sedan that would have retailed for less than $30,000 – and employed some 1,400 workers in the manufacturing process

In this extended version of the talk from our new issue , we speak with Blake Simmons, the VP for deconstruction at the Department of Energy's Joint Bioenergy Institute about competing with the fossil fuel industries, balancing needs for food and fuel, and becoming the Radio Shack of bioenergy.

If you’ve seen Eminem’s movie 8 Mile, you surely remember the scene of an industrial basement packed with hip-hop fans assembled for the battle between rival rappers.

Don't show 'em the money (even if you have it).

A new class of high power lasers can effectively accelerate particles like electrons and ions with very intense, short laser pulses. This has attracted the interest of researchers around the globe, working out the details of the acceleration process which occurs when a laser beam impinges on a thin foil to accelerate ions from the foil's rear surface to high energies. The electrons in the foil are heated by the laser pulse, thereby gaining energy

In this extended version of the talk from our new issue, we speak with Marianne Wu, a partner at Mohr Davidow Ventures. "A lot of people assume that green biofuels mean higher prices or worse performance," Wu says.