Print Email Facebook Twitter Sensing of the Molecular Spin in Spin-Crossover Nanoparticles with Micromechanical Resonators Title Sensing of the Molecular Spin in Spin-Crossover Nanoparticles with Micromechanical Resonators Author Dugay, J. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) Giménez-Marqués, Mónica (Universidad de Valencia (ICMol)) Venstra, W.J. (TU Delft QN/Afdelingsbureau; Kavli institute of nanoscience Delft) Torres-Cavanillas, Ramón (Universidad de Valencia (ICMol)) Sheombarsing, U.N. (Kavli institute of nanoscience Delft; Student TU Delft) Manca, N. (TU Delft QN/Caviglia Lab; Kavli institute of nanoscience Delft; University of Genova) Coronado, Eugenio (Universidad de Valencia (ICMol)) van der Zant, H.S.J. (TU Delft QN/van der Zant Lab; Kavli institute of nanoscience Delft) Date 2019 Abstract In the past years, the use of highly sensitive silicon microelectromechanical cantilevers has been proposed as a tool to characterize the spin-crossover phenomenon by employing fast optical readout of the motion. In this work, Fe II -based spin-crossover nanoparticles of the well-known [Fe(Htrz) 2 (trz)](BF 4 ) complex wrapped with thin silica shells of different sizes will be studied by means of silicon microresonators. The silica shell will enhance its chemical stability, whereas the low thickness will allow a proper mechanical coupling between the cantilever and the spin-crossover core. To maximize the sensing of the spin-crossover phenomena, different cantilever geometries and flexural modes were employed. In addition, the experimental observations were also compared with COMSOL numerical simulations, which are in close agreement with them. The probe of spin-crossover phenomena with micro- and nanoelectromechanical actuators offers the possibility of preparing smart sensing memory devices near/above room temperature. To reference this document use: http://resolver.tudelft.nl/uuid:0a3203f6-0330-40b9-b896-d0862c3d6cf5 DOI https://doi.org/10.1021/acs.jpcc.8b10096 Embargo date 2020-08-26 ISSN 1932-7447 Source The Journal of Physical Chemistry C, 123 (11), 6778-6786 Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2019 J. Dugay, Mónica Giménez-Marqués, W.J. Venstra, Ramón Torres-Cavanillas, U.N. Sheombarsing, N. Manca, Eugenio Coronado, H.S.J. van der Zant Files PDF acs.jpcc.8b10096taverne.pdf 1.67 MB Close viewer /islandora/object/uuid:0a3203f6-0330-40b9-b896-d0862c3d6cf5/datastream/OBJ/view