Nanostructured graphene for energy harvesting

(Received 1 August 2011; revised manuscript received 12 September 2011; published 6 October 2011)Engineered nonlinearities have been shown to play an important role in increasing the efficiency of energyharvesting devices. Macroscopic prototypes using this approach have been demonstrated recently [F. Cottone,H. Vocca, and L. Gammaitoni, Phys.Rev.Lett.