ArticleNature communications2015
Graphene liquid crystal retarded percolation for new high-k materials.
Article in Nature communications, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.
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Who cites it
14 citing papers in PubMed.
- 2D-Nanofiller-Based Polymer Nanocomposites for Capacitive Energy Storage Applications.Small science · 2023Article
- Continuum percolation in colloidal dispersions of hard nanorods in external axial and planar fields.Soft matter · 2021Article
- Predictive Optimization of Electrical Conductivity of Polycarbonate Composites at Different Concentrations of Carbon Nanotubes: A Valorization of Conductive Nanocomposite Theoretical Models.Materials (Basel, Switzerland) · 2021Article
- High-Performance Graphene Fibers Enabled by Hydration.ACS central science · 2020Article
- The Role of Fluorinated IL as an Interfacial Agent in P(VDF-CTFE)/Graphene Composite Films.Nanomaterials (Basel, Switzerland) · 2019Article
- Switchable Bandpass/Bandstop Filter Using Liquid Metal Alloy as Fluidic Switch.Sensors (Basel, Switzerland) · 2019Article
- Preparation and Comparison of Reduced Graphene Oxide and Carbon Nanotubes as Fillers in Conductive Natural Rubber for Flexible Electronics.ACS omega · 2019Article
- Graphene-Augmented Polymer Stabilization: Drastically Reduced and Temperature-Independent Threshold and Improved Contrast Liquid Crystal Device.ACS omega · 2019Article
- Article
- Breaking the Nanoparticle Loading-Dispersion Dichotomy in Polymer Nanocomposites with the Art of Croissant-Making.ACS nano · 2018Article
- Tailoring drug release rates in hydrogel-based therapeutic delivery applications using graphene oxide.Journal of the Royal Society, Interface · 2018Article
- Influences of Thermal Treatment on the Dielectric Performances of Polystyrene Composites Reinforced by Graphene Nanoplatelets.Materials (Basel, Switzerland) · 2017Article
- Carbon Coated Boron Nitride Nanosheets for Polymer Nanocomposites with Enhanced Dielectric Performance.Materials (Basel, Switzerland) · 2017Article
- Superflexibility of graphene oxide.Proceedings of the National Academy of Sciences of the United States of America · 2016Article
Corrections and comments
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Authors and funding
7 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Graphene flakes with giant shape anisotropy are extensively used to establish connectedness electrical percolation in various heterogeneous systems. However, the percolation behaviour of graphene flakes has been recently predicted to be far more complicated than generally anticipated on the basis of excluded volume arguments. Here we confirm experimentally that graphene flakes self-assemble into nematic liquid crystals below the onset of percolation. The competition of percolation and liquid crystal transition provides a new route towards high-k materials. Indeed, near-percolated liquid-crystalline graphene-based composites display unprecedented dielectric properties with a dielectric constant improved by 260-fold increase as compared with the polymer matrix, while maintaining the loss tangent as low as 0.4. This performance is shown to depend on the structure of monodomains of graphene liquid-crystalline phases. Insights into how the liquid crystal phase transition interferes with percolation transition and thus alters the dielectric constant are discussed.
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