Pressure Sensor via Optical Detection Based on a 1D Spin Transition Coordination Polymer
Cătălin M. Jureschi,
Jorge Linares,
Aurelian Rotaru,
Marie Hélène Ritti,
Michel Parlier,
Marinela M. Dîrtu,
Mariusz Wolff,
Yann Garcia
Affiliations
Cătălin M. Jureschi
Department of Electrical Engineering and Computer Science and Advanced Materials and Nanotechnology Laboratory (AMNOL), "Stefan cel Mare" University, University Street 13, Suceava 720229, Romania
Jorge Linares
Groupe d'Etude de la Matière Condensée (GEMaC), CNRS-UMR 8635, Université Versailles St Quentin, Versailles Cedex 78035, France
Aurelian Rotaru
Department of Electrical Engineering and Computer Science and Advanced Materials and Nanotechnology Laboratory (AMNOL), "Stefan cel Mare" University, University Street 13, Suceava 720229, Romania
Marie Hélène Ritti
ONERA - DMSC, 29 Avenue de la Division Leclerc, BP72, Chatillon Cedex 92322, France
Michel Parlier
ONERA - DMSC, 29 Avenue de la Division Leclerc, BP72, Chatillon Cedex 92322, France
Marinela M. Dîrtu
Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve 1348, Belgium
Mariusz Wolff
Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve 1348, Belgium
Yann Garcia
Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve 1348, Belgium
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.
