“…The rapidly growing demand for energy to charge low‐consumption electronic devices and wireless sensor network nodes has promoted the development of technology that can harvest energy from the vibration environment. Typical vibration‐to‐electricity conversion mechanisms include piezoelectric [1], electromagnetic [2], triboelectricity‐based electrostatic [3], and electret‐based electrostatic [4] transduction. Among the various types of energy harvester, owing to the advantages of simple structure, high energy density, high compatibility with micro‐electro‐mechanical systems (MEMS), and easy integration with microelectronic devices [5], the piezoelectric vibration energy harvester (PVEH) is widely employed to extract energy from structures [6], automobiles [7], and the human body [8].…”