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- W2479317780 abstract "Electrostriction is based on the variation of permittivity of a dielectric material when subjected to mechanical strain. Until now, the use of electrostrictive materials is limited to the actuation of Micro Electro Mechanical Systems (MEMS) operating mostly in static mode. Here, we present the use of electrostriction as integrated transduction scheme in organic microcantilevers operating in both static and dynamic modes. Also, an innovative low-cost and environment friendly process using xurography is developed for the simple fabrication of MEMS in an all-organic approach. Electromechanical characterization of the organic microcantilevers is performed with the aim of validating this new concept using an original composite material based on functionalized graphene oxide (GO) dispersed in a polydimethylsiloxane (PDMS) elastomer. This material is characterized by a dielectric permittivity thousand times larger than that of pure PDMS. The electrostrictive composite shows good performances when the microcantilever is bent, with a variation of capacitance exceeding 4 % for low strain values (< 1 %). Also, the integrated electrical detection of the microcantilever's resonant frequency (≤ 300 Hz) makes these devices suitable for mechanical energy harvesting. Trapezoidal shaped microcantilevers incorporating a seismic mass at its end give the best results with a resonant frequency of ∼ 15 Hz and electromechanical performance 100 times greater than that of rectangular ones." @default.
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- W2479317780 date "2016-05-01" @default.
- W2479317780 modified "2023-10-17" @default.
- W2479317780 title "Electrostriction as an integrated transduction method for organic MEMS" @default.
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- W2479317780 doi "https://doi.org/10.1109/dtip.2016.7514889" @default.
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