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

Sensors

Cătălin M. Jureschi²  Jorge Linares³  Aurelian Rotaru²  Marie Hélène Ritti⁴  Michel Parlier⁴  Marinela M. Dîrtu¹  Mariusz Wolff¹ 

[1] Institute of Condensed Matter and Nanosciences, Molecules, Solids, Reactivity (IMCN/MOST), Université catholique de Louvain, Place L. Pasteur 1, Louvain-la-Neuve 1348, Belgium; E-Mails:;Department of Electrical Engineering and Computer Science and Advanced Materials and Nanotechnology Laboratory (AMNOL), “Stefan cel Mare” University, University Street 13, Suceava 720229, Romania; E-Mails:;Groupe d'Etude de la Matière Condensée (GEMaC), CNRS-UMR 8635, Université Versailles St Quentin, Versailles Cedex 78035, France;ONERA - DMSC, 29 Avenue de la Division Leclerc, BP72, Chatillon Cedex 92322, France; E-Mails:

关键词: spin crossover;    pressure sensors;    optical detection;    smart materials;    material characterization;   

DOI  :  10.3390/s150202388

来源: mdpi

【 摘 要 】

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.

【 授权许可】

CC BY   
© 2015 by the authors; licensee MDPI, Basel, Switzerland.