From the Washington Post as reported in MIT News:
[Researchers] at the Massachusetts Institute of Technology say they have used spinach to harness a plant’s ability to convert sunlight into energy for the first time, creating a device that may one day power laptops, mobile phones and more….
[They] discovered that protein building blocks called detergent peptides could be manipulated to keep the [photosynthesis] proteins alive up to three weeks while in contact with electronics.