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Pressure Sensor via Optical Detection Based on a 1D Spin Transition Coordination Polymer

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Department of Electrical Engineering and Computer Science and Advanced Materials and Nanotechnology Laboratory (AMNOL), "Stefan cel Mare" University, University Street 13, Suceava 720229, Romania
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Laboratoire d'Ingénierie des Systèmes de Versailles, Université Versailles St Quentin, Versailles Cedex 78035, France
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Groupe d'Etude de la Matière Condensée (GEMaC), CNRS-UMR 8635, Université Versailles St Quentin, Versailles Cedex 78035, France
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ONERA - DMSC, 29 Avenue de la Division Leclerc, BP72, Chatillon Cedex 92322, France
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Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve 1348, Belgium
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Authors to whom correspondence should be addressed.
Sensors 2015, 15(2), 2388-2398; https://doi.org/10.3390/s150202388
Received: 22 December 2014 / Revised: 13 January 2015 / Accepted: 16 January 2015 / Published: 22 January 2015
(This article belongs to the Section Physical Sensors)
We have investigated the suitability of using the 1D spin crossover coordination polymer [Fe(4-(2’-hydroxyethyl)-1,2,4-triazole)3]I2∙H2O, known to crossover around room temperature, as a pressure sensor via optical detection using various contact pressures up to 250 MPa. A dramatic persistent colour change is observed. The experimental data, obtained by calorimetric and Mössbauer measurements, have been used for a theoretical analysis, in the framework of the Ising-like model, of the thermal and pressure induced spin state switching. The pressure (P)-temperature (T) phase diagram calculated for this compound has been used to obtain the P-T bistability region. View Full-Text
Keywords: spin crossover; pressure sensors; optical detection; smart materials; material characterization spin crossover; pressure sensors; optical detection; smart materials; material characterization
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Jureschi, C.M.; Linares, J.; Rotaru, A.; Ritti, M.H.; Parlier, M.; Dîrtu, M.M.; Wolff, M.; Garcia, Y. Pressure Sensor via Optical Detection Based on a 1D Spin Transition Coordination Polymer. Sensors 2015, 15, 2388-2398.

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