Patterned films from exfoliated two-dimensional transition metal dichalcogenides assembled at a liquid–liquid interface

Abstract

We present a facile method for controlled and patterned deposition of large area films made of exfoliated transition metal dichalcogenides.

Surfactant‐Induced Interfacial Aggregation of Porphyrins for Structuring Color‐Tunable Liquids

“…However, the transition of H 4 TPPS 2− at a liquid/liquid interface, specifically the water/oil interface, is mostly unexplored. Liquid/liquid interfaces afford some unique opportunities, due to the ease of chemical manipulation of the supramolecular structures, the interfacial assemblies are highly mobile, rapidly achieving equilibrium, the reaction behavior at the interface differs from that in the bulk, and H 4 TPPS 2− can electrostatically interact with basic hydrophobic polymers or oligomers to form supramolecular polymer surfactants (SPSs) where the interfacial binding energy is significantly increased, enabling the structuring of the liquids by an interfacial jamming [15–23] …”

“…unique opportunities, due to the ease of chemical manipulation of the supramolecular structures, the interfacial assemblies are highly mobile, rapidly achieving equilibrium, the reaction behavior at the interface differs from that in the bulk, and H 4 TPPS 2À can electrostatically interact with basic hydrophobic polymers or oligomers to form supramolecular polymer surfactants (SPSs) where the interfacial binding energy is significantly increased, enabling the structuring of the liquids by an interfacial jamming. [15][16][17][18][19][20][21][22][23] Recently, locking-in non-equilibrium shapes of liquids into targeted architectures, that is, structuring the liquids, using the interfacial assembly and jamming of nanoparticles, is emerging as a strategy for encapsulation for delivery systems to bicontinuous all-liquid systems for electron and ion transduction to separations for energy generation and storage devices to all-liquid, adaptable and responsive, three-dimensional (3D) printed constructs. [24][25][26][27][28][29][30][31][32] While the components comprising these "structured liquids" can integrate their own inherent functionality, the jamming of nanoparticles at the interface can transform the fundamental nature of the assemblies, as demonstrated with the recent discovery of ferromagnetic liquid droplets where magnetic nanoparticles are used.…”

Liquid–liquid interfaces: a unique and advantageous environment to prepare and process thin films of complex materials

“…54 MoS 2 , WS 2 and ReS 2 films were also prepared at an octadecene/ dimethyl formamide (DMF) interface starting from the exfoliated TMDs dispersed in DMF. 55 The films were deposited dipping the solid substrates across the films at the L/L interface. It was demonstrated that the TMD nanoflakes are in an edge-to-edge arrangement in the thin film over the substrate.…”

Self‐Assembly of Nanoparticles in 2D and 3D: Recent Advances and Future Trends

“…The interfacial assembling strategy could be extended to TiO 2 and SiO 2 and, thus, opened up a new route to designing functional materials. Kalantar‐zadeh's group have presented a facile approach for patterned deposition of exfoliated transition metal dichalcogenide suspensions onto substrates over large areas that are essential for the fabrication of effective and scalable electronic, energy, optical, and sensing units. That directly offers a liquid–liquid interface from the nanoflake suspension in dimethyl formamide, devoid of any surfactant or chemical modifiers.…”