Assembly of Fullerene Nanoparticles Using a Liquid–Liquid Interface

Abstract

Fullerene (C 60 ) nanoparticles were assembled in two-dimension using a liquid-liquid interface. C 60 nanoparticles dispersed in ethyl lactate=water solution were added to a glass vessel. Then, hexane was added to the dispersion solution to create the liquidliquid interface. C 60 nanocrystals were assembled at the interface, when ethanol was added to the water dispersion-hexane solution. The assembled film was transferred onto a solid substrate and the film morphology was observed by a scanning electron microscope (SEM) and atomic force microscope (AFM).

Interfacial self-assembly of nanoporous C60 thin films

“…Some attempts were made by sacricial templating, 27 electrodeposition from colloids, 28,29 or self-assembly of synthesized C 60 nanoparticles. 30 These methods remain limited by the difficulty to prepare C 60 nanoparticles smaller than 100 nm in diameter. [30][31][32] Interfacial self-assembly has emerged as a promising method for the fabrication of free-oating lms that can be readily integrated into functional devices.…”

C60 nanocrystals thin film with controlled density

“…To the C 60 nanocrystals dispersion, n-hexane was added to form an interface. Addition of ethanol to the interface, the C 60 nanocrystals were assembled at the n-hexane/water interface [10]. However density of the prepared film is low and their surface is relatively rough.…”

“…We have applied a liquid-liquid interface assembling technique to fabricate uniform thin films composed of organic nanocrystals [10][11][12]. Ultrathin film of nanocrystals with different size and shape has been prepared using the assembling technique.…”

“…Ultrathin film of nanocrystals with different size and shape has been prepared using the assembling technique. In the previous study, we prepared C 60 nanocrystals thin film using the liquid-liquid interfacial assembling technique [10]. To the C 60 nanocrystals dispersion, n-hexane was added to form an interface.…”

Visualizing Local Morphology and Conductivity Switching in Interface-Assembled Nanoporous C60 Thin Films

“…Hence, researchers have concentrated on bottom-up assembly methods instead. Fullerenes and their derivatives have been self-assembled in a wealth of building blocks, such as block copolymer assemblies, nanotubes, lamellae, monolayers, vesicles, single crystals, , or nanoparticles. , An appealing method to obtain nanoporous films would be by self-assembly of fullerene nanoparticles . The bottleneck to the direct use of fullerene nanoparticles to form nanoporous films is the reproducible production of monodisperse nanoparticles with diameters below 100 nm. ,, …”