Fabrication of devices featuring covalently linked MoS2–graphene heterostructures

Sulleiro, Manuel Vázquez; Develioğlu, Ayşegül; Quirós‐Ovies, Ramiro; Martín-Pérez, Lucía; Sabanés, Natalia Martín; Gonzalez-Juarez, Maria Lourdes; Gómez, I. Jénnifer; Vera-Hidalgo, Mariano; Sebastián, Víctor; Santamarı́a, Jesús; Burzurí, Enrique; Lara, David Pérez de

doi:10.1038/s41557-022-00924-1

Cited by 38 publications

(34 citation statements)

References 55 publications

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“…As a proof-of-concept, functionalization of the few-layer FePS 3 flakes with N -benzylmaleimide was performed according to the thiol-maleimide “click” reaction described previously for other sulfide-based materials − (see scheme in Figure a). 10 mL of 1 mM solution of N -benzylmaleimide in CHCl 3 was added to 10 mL of the suspension of exfoliated FePS 3 in i PrOH (sample ω 1 ), and the mixture was sonicated for 5 min and stirred vigorously for 16 h at room temperature (ca.…”

Section: Resultsmentioning

confidence: 99%

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS₃

et al. 2023

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Magnetism and the existence of magnetic order in a material is determined by its dimensionality. In this regard, the recent emergence of magnetic layered van der Waals (vdW) materials provides a wide playground to explore the exotic magnetism arising in the two-dimensional (2D) limit. The magnetism of 2D flakes, especially antiferromagnetic ones, however, cannot be easily probed by conventional magnetometry techniques, being often replaced by indirect methods like Raman spectroscopy. Here, we make use of an alternative approach to provide direct magnetic evidence of few-layer vdW materials, including antiferromagnets. We take advantage of a surfactant-free, liquid-phase exfoliation (LPE) method to obtain thousands of few-layer FePS3 flakes that can be quenched in a solvent and measured in a conventional SQUID magnetometer. We show a direct magnetic evidence of the antiferromagnetic transition in FePS3 few-layer flakes, concomitant with a clear reduction of the Néel temperature with the flake thickness, in contrast with previous Raman reports. The quality of the LPE FePS3 flakes allows the study of electron transport down to cryogenic temperatures. The significant through-flake conductance is sensitive to the antiferromagnetic order transition. Besides, an additional rich spectra of electron transport excitations, including secondary magnetic transitions and potentially magnon-phonon hybrid states, appear at low temperatures. Finally, we show that the LPE is additionally a good starting point for the mass covalent functionalization of 2D magnetic materials with functional molecules. This technique is extensible to any vdW magnetic family.

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Section: Resultsmentioning

confidence: 99%

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS₃

et al. 2023

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“…[ 23–27 ] However, the connection of carbon nanomaterials to inorganic 2D heterostructures has been mainly carried out via weak physicochemical interactions, with just a single example providing a robust covalent assembly through a linker molecule. [ 28 ] Considering the complementary properties offered by organic‐based nanomaterials such as carbon allotropes (e.g., 0D carbon dots (CDs), 1D carbon nanotubes, 2D graphene, or 3D graphite), [ 29,30 ] their integration into inorganic‐based 2D‐Ge might allow a new family of organic–inorganic 2D‐Ge heterostructures with interesting and promising novel characteristics to expand/tune the applicability range of 2D‐Ge toward yet unexplored or inaccessible fields. In particular, the use of 0D CDs is a rising topic in the field of nanotechnology owing to their outstanding properties, such as chemical stability, narrow bandgap, unique photoluminescence, water solubility, biocompatibility, and low‐cost preparation.…”

Section: Introductionmentioning

confidence: 99%

Synthetic Nanoarchitectonics of Functional Organic–Inorganic 2D Germanane Heterostructures via Click Chemistry

et al. 2022

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counterparts, resulting in outstanding physicochemical characteristics.Concretely, germanene (the germanium analog of mainstream graphene) and its saturated forms-obtained by topochemical deintercalation of bulkier Ca 2 Ge into 2D germanane (2D-Ge) derivatives where each Ge atom is covalently bonded to a terminal ligand (e.g., H, CH 3 , or CH 2 CHCH 2 )-have recently attracted particular attention since they exhibit similar promising electronic features to graphene. [15][16][17] In addition, the fact that its bandgap can be easily modulated by tailoring the tethered terminal ligand has further stimulated interest in the synthesis of 2D-Ge derivatives, which present themselves as ideal candidates for a variety of (opto)electronic tasks, including bio-sensing, energy storage and conversion, catalysis, and beyond. [4,[18][19][20][21] Albeit being a very promising material, the vast majority of works involving 2D-Ge derivatives are mainly focused on either developing computational studies or discussing fundamental aspects, with minimum emphasis on their experimental implementation. [21,22] Consequently, there is enough room for realizing functional 2D-Ge-based materials/devices and their exploration for specific achievements.To date, the combination of organic and inorganic nanomaterials has led to the creation of unique heterostructuresreferred to as architectures composed of more than one Succeeding graphene, 2D inorganic materials made of reactive van der Waals layers, like 2D germanane (2D-Ge) derivatives, have attracted great attention because their physicochemical characteristics can be entirely tuned by modulating the nature of the surface substituent. Although very interesting from a scientific point of view, almost all the reported works involving 2D-Ge derivatives are focused on computational studies. Herein, a first prototype of organic-inorganic 2D-Ge heterostructure has been synthesized by covalently anchoring thiol-rich carbon dots (CD-SH) onto 2D allyl germanane (2D-aGe) via a simple and green "one-pot" click chemistry approach. Remarkably, the implanted characteristics of the carbon nanomaterial provide new physicochemical features to the resulting 0D/2D heterostructure, making possible its implementation in yet unexplored optoelectronic tasks-e.g., as a fluorescence resonance energy transfer (FRET) sensing system triggered by supramolecular π-π interactions-that are inaccessible for the pristine 2D-aGe counterpart. Consequently, this work builds a foundation toward the robust achievement of functional organic-inorganic 2D-Ge nanoarchitectonics through covalently assembling thiol-rich carbon nanoallotropes on commercially available 2D-aGe.

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Section: Introductionmentioning

confidence: 99%

“…Furthermore, functional 2D–2D heterostructures by covalently linking MoS 2 and graphene were fabricated (Fig. 4D ) [ 59 ], which were usually based on van der Waals interactions [ 60 ].…”

Section: Introductionmentioning

confidence: 99%

Enhancing the interfacial binding strength between modular stretchable electronic components

Chen

2022

National Science Review

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Stretchable electronics are emerging for personalized and decentralized clinics, wearable devices, and human-machine interactions. Nowadays, separated stretchable functional parts have been well developed and approaching practical usage. However, the production of whole stretchable devices with full functions still faces a huge challenge: the integration of different components, which was hindered by the mechanical mismatch and stress/strain concentration at the connection interfaces. To avoid connection failure in stretchable devices, a new research focus is to improve the interfacial binding strength between different components. In this review, recent developments to enhance interfacial strength in wearable/implantable electronics were introduced and catalogued into three major strategies: 1) covalent bonding between different device parts, 2) molecular interpenetration or mechanical interlocking at the interfaces, and 3) covalent connection between the human body and devices. Besides reviewing current methods, we also discussed the existing challenges and possible improvements for stretchable devices from the aspect of interfacial connections.

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Fabrication of devices featuring covalently linked MoS2–graphene heterostructures

Cited by 38 publications

References 55 publications

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS₃

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS₃

Synthetic Nanoarchitectonics of Functional Organic–Inorganic 2D Germanane Heterostructures via Click Chemistry

Enhancing the interfacial binding strength between modular stretchable electronic components

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Fabrication of devices featuring covalently linked MoS2–graphene heterostructures

Cited by 38 publications

References 55 publications

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS3

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS3

Synthetic Nanoarchitectonics of Functional Organic–Inorganic 2D Germanane Heterostructures via Click Chemistry

Enhancing the interfacial binding strength between modular stretchable electronic components

Contact Info

Product

Resources

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Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS₃

Direct Magnetic Evidence, Functionalization, and Low-Temperature Magneto-Electron Transport in Liquid-Phase Exfoliated FePS₃