Electronics & Semiconductors

Scientists develop a tool for wireless charging of multiple devices

Researchers from the Faculty of Physics and Engineering managed to achieve simultaneous power transfer at various frequencies with the help of a metasurface. It will allow us to simultaneously charge devices from different ...

Engineering

Black silicon UV responses exceed 130% efficiency

"For the first time ever, we have direct experimental evidence that an external quantum efficiency above 100% is possible in a single photodiode without any external antireflection," says Hele Savin, associate professor of ...

Electronics & Semiconductors

Wirelessly charging electric cars as they drive

Stanford engineers have taken a big step toward making it practical for electric cars to recharge as they speed along futuristic highways built to "refuel" vehicles wirelessly.

Energy & Green Tech

Scientists tap unused energy source to power smart sensor networks

The electricity that lights our homes and powers our appliances also creates small magnetic fields that are present all around us. Scientists have developed a new mechanism capable of harvesting this wasted magnetic field ...

Energy & Green Tech

Wireless charging—More power, smaller package

Oak Ridge National Laboratory researchers created and tested new wireless charging designs that may double the power density, resulting in a lighter weight system compared with existing technologies, while maintaining safety.

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