Power/Performance Bits: Nov. 27


Hybrid solar for hydrogen and electricity Researchers at the Lawrence Berkeley National Laboratory developed an artificial photosynthesis solar cell capable of both storing the sun's energy as hydrogen through water splitting and outputting electricity directly. The hybrid photoelectrochemical and voltaic (HPEV) cell gets around a limitation of other water splitting devices that shortchange... » read more

Power/Performance Bits: April 17


Flexible LCDs Researchers at Donghua University and Hong Kong University of Science and Technology developed a flexible, optically rewriteable LCD for paperlike displays. The team estimates it will be cheap to produce, perhaps only costing $5 for a 5-inch screen. Optically rewriteable LCDs, like conventional LCDs, are structured like a sandwich, with a liquid crystal filling between two ... » read more

Power/Performance Bits: Nov. 10


Singing to your storage Existing research on 'racetrack memory', which uses tiny magnetic wires, each one hundreds of times thinner than a human hair, down which magnetic bits of data run like racing cars around a track, has focused on using either magnetic fields or electric currents to move the data bits down the wires. However, both these options create heat and reduce power efficiency. ... » read more

Power/Performance Bits: Aug. 19


Spray-on power In a discovery that could help cut the cost of solar electricity, a team of scientists at the University of Sheffield has fabricated perovskite solar cells using a spray-painting process. The researchers had used the spray-painting method previously to produce solar cells using organic semiconductors - but using perovskite is a major step forward, they asserted. Efficient ... » read more