Scientist have discovered an extremely thin material that can generate electricity when it is being stretched and bent.
The scientists from the Georgia Institute of Technology and Columbia Engineering published their findings about the material in the scientific magazine Nature. The material molybdenum disulphide is a clear, flexible material that can be made extremely thin, down to a single atom in thickness.
Because the material can be made so extremely thin and is flexible it could theoretically be embedded in fabric, for example in the lining of pants pocket or the arms of shirts. The movement of the material while you walk would then generate electricity that could be used to charge the phone in your pocket or the smart watch on your wrist.