Air-spaced PDMS piezo-electret cantilevers for vibration energy harvesting

[摘要] This paper reports a design of a new prototype of air-spaced cantilevers made from a micro-structured PDMS piezo-electret material for accelerometer and energy harvesting applications. The test performed on these cantilevers in a sensor mode exhibits a stable sensitivity of 385 mV/g for a frequency ranging from 5 Hz to 200 Hz that encompass most macro-scale vibrations. In the energy harvesting mode, the cantilever generates a power of 103 nW with a load resistance of 217 MΩ.

[发布机构] Univ. Grenoble Alpes, TIMA Laboratory, Grenoble; F-38031, France^1;CNRS, TIMA Laboratory, Grenoble; F-38031, France^2;Université de Tunis El Manar, Faculté des Sciences de Tunis, Laboratoire Matériaux, Organisation et Propriétés (LMOP), Tunis; 2092, Tunisia^3

[效力级别] 能源学

[关键词] A-stable;Electret materials;Frequency ranging;Load resistances;Macro scale;Sensor modes;Vibration energy harvesting