Journal
JOURNAL OF MATERIALS CHEMISTRY C
Volume 2, Issue 16, Pages 2949-2955Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c4tc00267a
Keywords
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Funding
- project Switchelec [ANR-12-IS07-0003-01]
- Marie-Curie research program [NanoSCOpe 328078]
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Composites of the spin crossover complex [Fe(trz)(H-trz)(2)](BF4) (H-trz = 1,2,4-4H-triazole and trz = 1,2,4-triazolato) dispersed in a poly(methylmethacrylate) (PMMA) matrix were synthesized and investigated for their spin crossover properties by optical reflectivity, Raman spectroscopy and calorimetry. These composite films were used to fabricate bilayer cantilevers that can perform efficient and tuneable mechanical actuation based on the spin transition. A prototype device that uses the spin transition phenomenon to convert electrical energy into mechanical motion through Joule heating is described. This device is used to perform oscillatory actuation driven by a modulated current. The ability to tune the performance of this electromechanical system is demonstrated by varying the working temperature, the applied ac current and its frequency.
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