151166 20251017144609.0 doi 10.3390/molecules26185503 sideral 125810 ART-2021-125810 eng Bartolomé E. Luminescent and magnetic tb-mof flakes deposited on silicon 2021 Access copy available to the general public Unrestricted The synthesis of a terbium-based 2D metal–organic framework (MOF), of formula [Tb(MeCOO)(PhCOO)2 ] (1), a crystalline material formed by neutral nanosheets held together by Van der Waals interactions, is presented. The material can be easily exfoliated by sonication and deposited onto different substrates. Uniform distributions of Tb-2D MOF flakes onto silicon were obtained by spin-coating. We report the luminescent and magnetic properties of the deposited flakes compared with those of the bulk. Complex 1 is luminescent in the visible and has a sizeable quantum yield of QY = 61% upon excitation at 280 nm. Photoluminescence measurements performed using a micro-Raman set up allowed us to characterize the luminescent spectra of individual flakes on silicon. Magnetization measurements of flakes-on-silicon with the applied magnetic field in-plane and out-of-plane display anisotropy. Ac susceptibility measurements show that 1 in bulk exhibits field-induced slow relaxation of the magnetization through two relaxation paths and the slowest one, with a relaxation time of tlf ˜ 0.5 s, is assigned to a direct process mechanism. The reported exfoliation of lanthanide 2D-MOFs onto substrates is an attractive approach for the development of multifunctional materials and devices for different applications. © 2021 by the authors. Licensee MDPI, Basel, Switzerland. info:eu-repo/grantAgreement/ES/DGA/E12-20R RASMIA info:eu-repo/grantAgreement/ES/MINECO/MAT2017-83468-R info:eu-repo/grantAgreement/ES/MINECO/PGC2018-098630-B-I00 info:eu-repo/semantics/openAccess by https://creativecommons.org/licenses/by/4.0/deed.es 4.927 2021 CHEMISTRY, MULTIDISCIPLINARY 65 / 179 = 0.363 2021 Q2 T2 BIOCHEMISTRY & MOLECULAR BIOLOGY 114 / 297 = 0.384 2021 Q2 T2 0.705 2021 Analytical Chemistry 2021 Q1 Drug Discovery 2021 Q1 Pharmaceutical Science 2021 Q1 Molecular Medicine 2021 Q1 Organic Chemistry 2021 Q1 Medicine (miscellaneous) 2021 Q1 5.9 2021 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Arauzo A. Universidad de Zaragoza (orcid)0000-0002-5999-341X Herce S. Palau A. Mestres N. Fuertes S. (orcid)0000-0003-1812-3175 Sevilla P. Settineri N.S. Navarro-Spreafico L. González J. Sañudo E.C. 0 X Universidad de Zaragoza Serv.Gral. Apoyo Investigación Servicios. Div.Caract.Físi.Quí 26, 18 (2021), 26185503 [13 pp.] Molecules (Basel, Online) Molecules 1420-3049 608096 http://zaguan.unizar.es/record/151166/files/texto_completo.pdf Versión publicada 2735270 http://zaguan.unizar.es/record/151166/files/texto_completo.jpg?subformat=icon icon Versión publicada oai:zaguan.unizar.es:151166 articulos driver 2025-10-17-14:16:32 ARTICLE