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Keywords:

  • self-powered artificial cardiac pacemaker;
  • flexible piezoelectric energy harvester;
  • single crystal PMN-PT;
  • thin film nanogenerator
Thumbnail image of graphical abstract

A flexible single-crystalline PMN-PT piezoelectric energy harvester is demonstrated to achieve a self-powered artificial cardiac pacemaker. The energy-harvesting device generates a short-circuit current of 0.223 mA and an open-circuit voltage of 8.2 V, which are enough not only to meet the standard for charging commercial batteries but also for stimulating the heart without an external power source.