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Spin crossover composite materials for electrothermomechanical actuators

Gural'Skiy, I.A., Quintero, C.M., Costa, J.S., Demont, P., Molnár, G., Salmon, L., Shepherd, H.J., Bousseksou, A. (2014) Spin crossover composite materials for electrothermomechanical actuators. Journal of Materials Chemistry C, 2 (16). pp. 2949-2955. ISSN 2050-7534. (doi:10.1039/c4tc00267a) (The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided)

The full text of this publication is not currently available from this repository. You may be able to access a copy if URLs are provided. (Contact us about this Publication)
Official URL
https://doi.org/10.1039/C4TC00267A

Abstract

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.

Item Type: Article
DOI/Identification number: 10.1039/c4tc00267a
Additional information: Unmapped bibliographic data: LA - English [Field not mapped to EPrints] J2 - J. Mater. Chem. C [Field not mapped to EPrints] AD - LCC, CNRS, University of Toulouse (UPS, INPT), 205 route de Narbonne, 31077 Toulouse, France [Field not mapped to EPrints] AD - Department of Chemistry, Taras Shevchenko National University of Kyiv, 64 Volodymyrska Street, 01601 Kyiv, Ukraine [Field not mapped to EPrints] AD - LAAS, CNRS, Université de Toulouse (UPS, INSA, IAES), 7 avenue du colonel Roche, 31077 Toulouse, France [Field not mapped to EPrints] AD - Institut Carnot CIRIMAT, CNRS, Université de Toulouse III, 118 Route de Narbonne, 31062 Toulouse, France [Field not mapped to EPrints] AD - Department of Chemistry, University of Bath, Bath BA2 7AY, United Kingdom [Field not mapped to EPrints] DB - Scopus [Field not mapped to EPrints]
Uncontrolled keywords: Functional Materials Group. Composite films, Electromechanical systems, Mechanical actuations, Mechanical motions, Modulated current, Optical reflectivity, Prototype devices, Spin-crossover complexes, Working temperatures, Optical properties
Subjects: Q Science > QD Chemistry > QD473 Physical properties in relation to structure
Divisions: Faculties > Sciences > School of Physical Sciences > Functional Materials Group
Depositing User: Giles Tarver
Date Deposited: 21 Oct 2015 16:13 UTC
Last Modified: 10 Feb 2020 16:25 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/50814 (The current URI for this page, for reference purposes)
Shepherd, H.J.: https://orcid.org/0000-0003-0832-4475
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