期刊
PHYSICS LETTERS A
卷 375, 期 45, 页码 3921-3924出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.physleta.2011.09.043
关键词
Energy conversion; Energy harvesting; Electrostatic; Capacitive; Nonlinear
This Letter exposes an electrostatic-based vibration energy scavenging scheme using a two-layer configuration made of a high permittivity material and a low permittivity layer of variable thickness. Because of the significant change in the permittivity allowed by this process, the capacitance ratio variation is much larger than in the case of a single layer (whatever the permittivity of the latter), therefore allowing an increased efficiency and a significant energy gain, by a typical factor of 50. (C) 2011 Elsevier B.V. All rights reserved.
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