Role of Nanocomposites in Future Nanoelectronic Information Storage Devices

Shukla, V.; Raval, Bhargav; Mishra, Sachin; Singh, Man

doi:10.1016/b978-0-12-813353-8.00011-7

Cited by 4 publications

(1 citation statement)

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“…The most popular fillers that exist are carbon nanotubes [ 13 , 14 , 15 ], graphene [ 16 ], and several oxides [ 17 ]. These nanocomposites have a vast spectrum of applications, such as the development of nanoelectronics [ 18 ], aerospace industry [ 19 ], membrane separation [ 20 ], anti-corrosives [ 21 , 22 ], super-capacitors [ 23 , 24 ], or sensors of several interesting molecules as organic molecules [ 25 , 26 , 27 ]. In particular, carbon nanotubes and graphene nanofillers have proven to drastically increase electrical conductivity.…”

Section: Introductionmentioning

confidence: 99%

Non-Covalent Interactions on Polymer-Graphene Nanocomposites and Their Effects on the Electrical Conductivity

Apátiga

Castillo

et al. 2021

Polymers

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It is well known that a small number of graphene nanoparticles embedded in polymers enhance the electrical conductivity; the polymer changes from being an insulator to a conductor. The graphene nanoparticles induce several quantum effects, non-covalent interactions, so the percolation threshold is accelerated. We studied five of the most widely used polymers embedded with graphene nanoparticles: polystyrene, polyethylene-terephthalate, polyether-ketone, polypropylene, and polyurethane. The polymers with aromatic rings are affected mainly by the graphene nanoparticles due to the π-π stacking, and the long-range terms of the dispersion corrections are predominant. The polymers with linear structure have a CH-π stacking, and the short-range terms of the dispersion corrections are the important ones. We used the action radius as a measuring tool to quantify the non-covalent interactions. This action radius was the main parameter used in the Monte-Carlo simulation to obtain the conductivity at room temperature (300 K). The action radius was the key tool to describe how the percolation transition works from the fundamental quantum levels and connect the microscopic study with macroscopic properties. In the Monte-Carlo simulation, it was observed that the non-covalent interactions affect the electronic transmission, inducing a higher mean-free path that promotes the efficiency in the transmission.

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