Imagine a future in which we leave our wired chargers behind and are able to fully charge our cell phone batteries with a Wi-Fi signal. This fantasy may soon become a reality. Students at Duke University have developed a power-harvesting material that converts Wi-Fi energy into electrical current capable of charging a cell phone battery or other small electronic device. The material operates on a similar principle as solar panels, which convert one form of energy into another. With some additional modifications, the student researchers believe the power-harvesting material could be built into a cell phone, allowing for wireless battery recharging while not in use. For more information about this research, Duke’s news release is available here.