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Keywords:

  • carbon;
  • graphene oxide;
  • nanoparticles;
  • photothermal therapy;
  • surface chemistry
Thumbnail image of graphical abstract

Graphene oxide films were fabricated as low-cost and flexible nanogenerators to convert acoustic energy into electricity with a conversion efficiency of 12.1 % (see picture). The generated current sensitively depended on the pH value of the suspensions for graphene oxide (GO) film production.