On the processing of monolayer C₆₀fullerene films and their mechanical properties

On the production, mechanical and electro-optic properties of large-area monolayer graphene films using Langmuir-Blodgett technique

“…Our current experimental measurements are also in agreement with the nonlinear elastic response of graphene sheets previously suggested by numerical simulations [14,40]. It is important to emphasize that such nonlinear behavior was observed neither in hexagonal close-packed C 60 monolayer films [29] nor in aligned single-walled carbon nanotube (A-SWCNT) films [32]. Comparing the monolayer graphene film stiffness (40 to 80 MPa) to that of C 60 and A-SWCNT films, the graphene monolayer film is much stiffer since the stiffness of C 60 films was reported to be 32±1 MPa, and that of A-SWCNT was reported to be 10±0.5 MPa.…”

“…As we discussed in earlier publication [29,32,33] the Langmuir-Blodgett isotherm can be converted into a film stress-strain curve by dividing the surface pressure (N m −1 ) by the film thickness of a monolayer graphene ( 3.35 Å) [39], and by transforming the film deformation into film linear strain since the film width is constant in all experiments (same as trough width that is equal to 0.2 m). Figure 14 shows the compressive stress-strain curve for the monolayer graphene film (obtained from the isotherm shown in figure 8).…”

“…However, the complete realization of the advantages of such a unique class of matter for technology necessitates a reliable processing method to enable the production of structurally well-controlled, device size samples ready for device applications [28]. Recently, we have reported the successful processing of monolayer nano-film of hexagonally closed-pack C 60 molecules [29], and in this paper, we report the first successful processing of a large scale graphene mono-layer film using Langmuir-Blodgett (LB) technique.…”

Self-assembly of carbon based nanoparticles films by Langmuir-Blodgett method

“…Amer and Altalebi were the first which used LB technique for successful production of the hexagonal close-packed monolayer films from unmodified C 60 fullerene. 184 Under optimized processing parameters, the films structure was investigated using STM and AFM. Such films could be used in many applications like optoelectronic devices, transparent electrodes, sensors and photovoltaics.…”