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Keywords:

  • all-solution process;
  • ZnO;
  • flexible thin films;
  • piezoelectric materials;
  • nanogenerators
Thumbnail image of graphical abstract

An all-solution-processed flexible piezoelectric nanogenerator, composed of polycrystalline ZnO thin film and functional polymer layers such as P3HT/PCBM and PEDOT:PSS, generates energy through a mechanical rolling and muscle stretching system. On page 6022, Youn Sang Kim, Sang-Woo Kim, and co-workers show that this all-solution-processed nanogenerator is feasible as a piezoelectric patchable device and is promising for use in future energy harvesters such as wearable human patches and mobile electronics.