Before long, recharging your devices could be as simple as holding them up to the sun.
Stanford researchers have unveiled new peel-off solar cells—flexible energy devices that can be attached to paper, plastic, and glass surfaces alike.
The cells are placed in a bath to affix them to something, and they are removable and reusable. Researchers suggest placing them on cellphones and business cards, or using them to mimic decals on windows. They can even be used for emerging “smart clothing,” textiles with built-in technological features.