Electrical Conductivity Modeling of Graphene-based Conductor Materials

Graphene-based conductors such as films and fibers aim to transfer graphene’s extraordinary properties to the macroscopic scale. They show great potential for large-scale applications, but there is a lack of theoretical models to describe their electrical characteristics. We present a network simula...

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Bibliographic Details
Published inACS applied materials & interfaces Vol. 10; no. 49; pp. 43088 - 43094
Main Authors Rizzi, Leo, Zienert, Andreas, Schuster, Jörg, Köhne, Martin, Schulz, Stefan E
Format Journal Article
LanguageEnglish
Published United States American Chemical Society 12.12.2018
Subjects
electrical conductivity
network simulation
nanocomposites
conductor materials
graphene
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Summary:Graphene-based conductors such as films and fibers aim to transfer graphene’s extraordinary properties to the macroscopic scale. They show great potential for large-scale applications, but there is a lack of theoretical models to describe their electrical characteristics. We present a network simulation method to model the electrical conductivity of graphene-based conductors. The method considers all of the relevant microscopic parameters such as graphene flake conductivity, interlayer conductivity, packing density, and flake size. To provide a mathematical framework, we derive an analytical expression, which reproduces the essential features of the network model. We also find good agreement with experimental data. Our results offer production guidelines and enable the systematic optimization of high-performance graphene-based conductor materials. A generalization of the model to any conductor based on two-dimensional materials is straightforward.
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ISSN:1944-8244
1944-8252
DOI:10.1021/acsami.8b16361