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Hybrid Heterostructures of a Spin Crossover Coordination Polymer on MoS2: Elucidating the Role of the 2D Substrate

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Hybrid Heterostructures of a Spin Crossover Coordination Polymer on MoS2: Elucidating the Role of the 2D Substrate

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dc.contributor.author	Núñez López, Alejandro
dc.contributor.author	Torres-Cavanillas, Ramón
dc.contributor.author	Morant Giner, Marc
dc.contributor.author	Vassilyeva, Natalia
dc.contributor.author	Mattana, Richard
dc.contributor.author	Tatay Aguilar, Sergio
dc.contributor.author	Ohresser, Philippe
dc.contributor.author	Otero, Edwige
dc.contributor.author	Rubio Giménez, Víctor
dc.contributor.author	Forment Aliaga, Alicia
dc.contributor.author	Coronado Miralles, Eugenio
dc.date.accessioned	2023-10-16T13:31:21Z
dc.date.available	2023-10-16T13:31:21Z
dc.date.issued	2023
dc.identifier.citation	Núñez López, Alejandro Torres Cavanillas, Ramón Morant Giner, Marc Vassilyeva, Natalia Mattana, Richard Tatay Aguilar, Sergio Ohresser, Philippe Otero, Edwige Rubio Giménez, Víctor Forment Aliaga, Alicia Coronado Miralles, Eugenio 2023 Hybrid Heterostructures of a Spin Crossover Coordination Polymer on MoS2: Elucidating the Role of the 2D Substrate Small 2304954
dc.identifier.uri	https://hdl.handle.net/10550/90366
dc.description.abstract	Controlling the deposition of spin-crossover (SCO) materials constitutes a crucial step for the integration of these bistable molecular systems in electronic devices. Moreover, the influence of functional surfaces, such as 2D materials, can be determinant on the properties of the deposited SCO film. In this work, ultrathin films of the SCO Hofmann-type coordination polymer [Fe(py)2{Pt(CN)4}] (py = pyridine) onto monolayers of 1T and 2H MoS2 polytypes are grown. The resulting hybrid heterostructures are characterized by GIXRD, XAS, XPS, and EXAFS to get information on the structure and the specific interactions generated at the interface, as well as on the spin transition. The use of a layer-by-layer results in SCO/2D heterostructures, with crystalline and well-oriented [Fe(py)2{Pt(CN)4}]. Unlike with conventional Au or SiO2 substrates, no intermediate self-assembled monolayer is required, thanks to the surface S atoms. Furthermore, it is observed that the higher presence of Fe3+ in the 2H heterostructures hinders an effective spin transition for [Fe(py)2{Pt(CN)4}] films thinner than 8 nm. Remarkably, when using 1T MoS2, this transition is preserved in films as thin as 4 nm, due to the reducing character of this metallic substrate. These results highlight the active role that 2D materials play as substrates in hybrid molecular/2D heterostructures.
dc.language.iso	eng
dc.relation.ispartof	Small, 2023, num. 2304954
dc.subject	química
dc.subject	materials
dc.title	Hybrid Heterostructures of a Spin Crossover Coordination Polymer on MoS2: Elucidating the Role of the 2D Substrate
dc.type	journal article
dc.date.updated	2023-10-16T13:31:22Z
dc.identifier.doi	10.1002/smll.202304954
dc.identifier.idgrec	160983
dc.rights.accessRights	open access
dc.relation.projectID	H2020/SINFONIA/ID:964396