69416 20210121082857.0 doi 10.1021/acs.jpcc.5b05864 sideral 91225 ART-2015-91225 eng (orcid)0000-0002-9687-4903 Castro, M. Universidad de Zaragoza Pulsed-laser switching in the bistability domain of a cooperative spin crossover compound: A critical study through calorimetry 2015 Access copy available to the general public Unrestricted The photoswitching from the low spin (LS) to high spin (HS) state and the reverse process in the bistability domain of spin crossover (SCO) compounds is a promising function to be used in molecular electronic devices, and evidenced mainly through spectroscopy. The phenomenon, and in particular its mechanism, is however still under debate since some controversial experimental results have been reported. Here we present a calorimetric experimental study of the photoswitching of the [Fe(pyrazine)Pt(CN)4] SCO material by a nanosecond-pulsed green laser. Our results confirm that the single laser pulse of varying energies results in significant LS to HS transformations and show that calorimetry provides an accurate quantification of the overall conversion. Successive pulses allow increasing the conversion, achieving a maximum of 60% under our experimental conditions. The HS to LS transformation is on the other hand not induced at any laser fluences contrary to previous reports. The results are compared with those reported with Raman spectroscopy and critically discussed in terms of efficiency of the transformation and potential thermal effects. info:eu-repo/grantAgreement/ES/DGA/E100 info:eu-repo/grantAgreement/ES/DGA/E98-MOLCHIP info:eu-repo/grantAgreement/ES/MICINN/MAT2011-24284 info:eu-repo/grantAgreement/ES/MICINN/MAT2011-27233-C02-02 info:eu-repo/grantAgreement/ES/MINECO/CSD2007-00010 info:eu-repo/grantAgreement/ES/MINECO/CTQ2011-23862-C02-01 info:eu-repo/grantAgreement/ES/MINECO/CTQ2013-46275-P info:eu-repo/semantics/openAccess All rights reserved http://www.europeana.eu/rights/rr-f/ 4.509 2015 CHEMISTRY, PHYSICAL 30 / 144 = 0.208 2015 Q1 T1 MATERIALS SCIENCE, MULTIDISCIPLINARY 39 / 271 = 0.144 2015 Q1 T1 NANOSCIENCE & NANOTECHNOLOGY 22 / 83 = 0.265 2015 Q2 T1 1.886 2015 Electronic, Optical and Magnetic Materials 2015 Q1 Energy (miscellaneous) 2015 Q1 Surfaces, Coatings and Films 2015 Q1 Physical and Theoretical Chemistry 2015 Q1 Nanoscience and Nanotechnology 2015 Q1 info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion (orcid)0000-0003-2095-5843 Roubeau, O. Universidad de Zaragoza Piñeiro-López, L. Real, J. A. (orcid)0000-0002-8505-5232 Rodríguez-Velamazán, J. A. 5001 065 Universidad de Zaragoza Dpto. Ciencia Tecnol.Mater.Fl. Área Cienc.Mater. Ingen.Metal. 2003 395 Universidad de Zaragoza Dpto. Física Materia Condensa. Área Física Materia Condensada 119, 30 (2015), 17334-17343 J. phys. chem., C Journal of Physical Chemistry C 1932-7447 3073009 http://zaguan.unizar.es/record/69416/files/texto_completo.pdf Postprint 82843 http://zaguan.unizar.es/record/69416/files/texto_completo.jpg?subformat=icon icon Postprint oai:zaguan.unizar.es:69416 articulos driver 2021-01-21-08:13:54 ARTICLE