A Multifunctional Dysprosium‐Carboxylato 2D Metall–Organic Framework

González, Jonay; Sevilla, Pablo; Gabarró‐Riera, Guillem; Echeverría, Jorge; Fuertes, Sara; Arauzo, Ana B.; Bartolomé, Elena; Sañudo, E. Carolina

doi:10.1002/anie.202100507

Cited by 37 publications

(38 citation statements)

References 47 publications

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“…TEM shows that the nanosheets of 1 are broken, and form flakes of several nanosheets. In similar exfoliation conditions, for the Dy analogue, we were able to observe isolated nanosheets in TEM, as we reported [39]. The deposition of the exfoliated material onto a surface is a pre-requisite for further manipulation of the material and its application onto devices.…”

Section: Exfoliation and Deposition Of Tb-2d Mof Flakes Onto Siliconsupporting

confidence: 75%

“…For exfoliation, neutral 2D MOFs, organized in three dimensions by weak Van der Waals forces are preferred, as the non-covalent bonding between layers allow the exfoliation without disturbing the bonding within the layer. We have calculated for the previously reported Dy analogue that the interaction energy between two interacting monolayers of the size of a unit cell is −113 kJ/mol (for comparison, the interaction energies of two-layer graphene and graphane, with the same surface size as our 2D MOF, are −274 and −97 kJ/mol, respectively) [39].…”

Section: Synthesis and Crystal Structurementioning

confidence: 79%

“…Figure 1 shows the asymmetric unit of compound 1 and the crystal packing. Compound 1 is isostructural to the Ln=Dy compound earlier described [39]. The Tb(III) ion has coordination number 8, with a distorted square antiprism coordination environment like the Dy analogue.…”

Section: Synthesis and Crystal Structurementioning

confidence: 84%

“…In a recent work, we presented a facile, microwave-assisted method for the preparation of a dysprosium carboxylate-based 2D MOF material, that could be exfoliated into nanosheets by sonication [39].…”

Section: Introductionmentioning

confidence: 99%

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Luminescent and Magnetic Tb-MOF Flakes Deposited on Silicon

et al. 2021

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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 τlf ≈ 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.

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Section: Exfoliation and Deposition Of Tb-2d Mof Flakes Onto Siliconsupporting

confidence: 75%

Section: Synthesis and Crystal Structurementioning

confidence: 79%

Section: Synthesis and Crystal Structurementioning

confidence: 84%

Section: Introductionmentioning

confidence: 99%

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Luminescent and Magnetic Tb-MOF Flakes Deposited on Silicon

et al. 2021

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“…Figure 1. a) SEM image of asample of 1 obtained after 1week at 40 8 8C, b) Detail of Dy coordination environmentfor 1.c)Crystalpacking view along the bc plane of the unit cell, showing stacking of the nanosheetsalong the a axis of the unit cell for 1 (hydrogen atoms omitted for clarity) [43]. d) Topological arrangement of the Dy ions in the bc plane of the unit cell.…”

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confidence: 99%

A Multifunctional Dysprosium‐Carboxylato 2D Metall–Organic Framework

et al. 2021

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Ferromagnetic Elements in Two‐Dimensional Materials: 2D Magnets and Beyond

Papavasileiou,

Menelaou,

Sarkar

et al. 2023

Adv Funct Materials

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Ferromagnetism in 2D materials has attracted tremendous interest from the scientific community thanks to its potential for the design of magnetic materials with unique properties. The presence of a ferromagnetic element in a 2D material can improve the existing properties and offer new ones, giving rise to the development of manifold applications. This review focuses on recent advances and perspectives of 2D materials that bear at least one ferromagnetic element (iron, cobalt, nickel) as i) structural constituent, ii) dopant atom, or iii) adjacent atom through proximity effect. By describing in detail the magnetic properties that have emerged so far, their potential to form next‐generation 2D magnets is discussed. Moreover, the contribution of such 2D materials is analyzed in various applications (electrochemical, photochemical, optical, and electronic), aiming to explore further functionalities and capabilities of ferromagnetic elements, apart from their magnetic nature. Special attention is given to gadolinium and other rare earth elements that display a ferromagnetic order even at ultra‐low temperatures and form part of 2D structured materials, with particularly appealing properties deriving from their 4f electrons.

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A Multifunctional Dysprosium‐Carboxylato 2D Metall–Organic Framework

Cited by 37 publications

References 47 publications

Luminescent and Magnetic Tb-MOF Flakes Deposited on Silicon

Luminescent and Magnetic Tb-MOF Flakes Deposited on Silicon

A Multifunctional Dysprosium‐Carboxylato 2D Metall–Organic Framework

Ferromagnetic Elements in Two‐Dimensional Materials: 2D Magnets and Beyond

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