Articles with "percolation threshold" as a keyword



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Three-dimensional resistor network modeling of the resistivity and permeability of fractured rocks

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Published in 2017 at "Journal of Geophysical Research"

DOI: 10.1002/2016jb013854

Abstract: The resistivity and permeability of 3-D fracture networks have been modeled as the fractures within these networks are incrementally opened. In these models, the ratio of the rock resistivity to that of the fluid is… read more here.

Keywords: resistivity; fracture networks; resistivity permeability; permeability ... See more keywords
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Ultrathin Metal Film on Graphene for Percolation-threshold-limited Thermal Emissivity Control.

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Published in 2023 at "Advanced materials"

DOI: 10.1002/adma.202301227

Abstract: Here, we show that translucent Au/graphene hybrid films can effectively reduce thermal emission from the underlying surfaces when the deposition thickness of Au is close to the percolation threshold. The critical Au deposition thickness for… read more here.

Keywords: graphene; ultrathin metal; film; percolation threshold ... See more keywords
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Recombination Losses Above and Below the Transport Percolation Threshold in Bulk Heterojunction Organic Solar Cells

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Published in 2018 at "Advanced Energy Materials"

DOI: 10.1002/aenm.201703339

Abstract: Achieving the highest power conversion efficiencies in bulk heterojunction organic solar cells requires a morphology that delivers electron and hole percolation pathways for optimized transport, plus sufficient donor:acceptor contact area for near unity charge transfer… read more here.

Keywords: organic solar; bulk heterojunction; percolation; transport percolation ... See more keywords
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Electrical and thermal phenomena in low‐density polyethylene/carbon black composites near the percolation threshold

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Published in 2019 at "Journal of Applied Polymer Science"

DOI: 10.1002/app.47043

Abstract: Low-density polyethylene (LDPE)/carbon black (CB) composites were fabricated via meltcompounding technique. The percolation threshold was found to be around 20 wt% CB, and an electrical network formed by conductive CB was proven by SEM investigation.… read more here.

Keywords: density polyethylene; percolation; low density; carbon black ... See more keywords
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Vacancies in Self-Assembled Crystals: An Archetype for Clusters Statistics at the Nanoscale.

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Published in 2020 at "Small"

DOI: 10.1002/smll.202002735

Abstract: Complex systems involving networks have attracted strong multidisciplinary attention since they are predicted to sustain fascinating phase transitions in the proximity of the percolation threshold. Developing stable and compact archetypes that allow one to experimentally… read more here.

Keywords: crystals archetype; archetype clusters; self assembled; assembled crystals ... See more keywords
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A new methodology based on micromechanics model to predict the tensile modulus and network formation in polymer/CNT nanocomposites

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Published in 2018 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2018.04.032

Abstract: Abstract This work suggests a new methodology based on a micromechanics model to predict the tensile modulus and network formation in polymer/CNT nanocomposites above percolation threshold of nanoparticles. A network parameter (NP) depending on the… read more here.

Keywords: methodology; network; new methodology; cnt ... See more keywords
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Experimental and theoretical study of the evolution of fluid-suspended graphene morphology driven by an applied electric field and the attainment of ultra-low percolation threshold in graphene-polymer nanocomposites

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Published in 2020 at "Composites Science and Technology"

DOI: 10.1016/j.compscitech.2020.108315

Abstract: Abstract We report on a coordinated experimental and theoretical investigation into the evolution of the morphology of fluid-suspended graphene driven by an electric field, and the attainment of ultra-low percolation threshold in graphene-polymer nanocomposites. A… read more here.

Keywords: field; graphene polymer; electric field; percolation threshold ... See more keywords
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The synergistic effect of micron spherical and flaky silver-coated copper for conductive adhesives to achieve high electrical conductivity with low percolation threshold

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Published in 2021 at "International Journal of Adhesion and Adhesives"

DOI: 10.1016/j.ijadhadh.2021.102988

Abstract: Abstract In the application of electronic products, it is critical for conductive adhesives to ensure high electrical conductivity and good adhesion reliability. In this study, isotropic conductive adhesives (ICAs) with high conductivity and low percolation… read more here.

Keywords: percolation threshold; conductivity; conductive adhesives; spherical flaky ... See more keywords
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Effect of pore characteristic on the percolation threshold and diffusivity of porous media comprising overlapping concave-shaped pores

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Published in 2019 at "International Journal of Heat and Mass Transfer"

DOI: 10.1016/j.ijheatmasstransfer.2019.04.110

Abstract: Abstract The emergence of system-spanning flow path is the prerequisite of fluid flow through porous composites. In statistic physics, the percolation threshold is often used to describe the formation of long-range connectivity in the system… read more here.

Keywords: concave shaped; porous media; shaped pores; percolation threshold ... See more keywords
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Electrochromic behavior and electrical percolation threshold of carbon nanotube/poly(pyridinium triflate) composites

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Published in 2018 at "Journal of Electroanalytical Chemistry"

DOI: 10.1016/j.jelechem.2018.07.012

Abstract: Abstract The electrochromic composite material based on poly(4,4′-(1,4-phenylene)bis(2,6-diphenylpyridinium) triflate) (PV) and multiwall carbon nanotubes (MWCNTs) was prepared by non-covalent interaction where PV acts as a functionalizing agent for MWCNTs. The increase in electrical conductivity and… read more here.

Keywords: carbon; electrical percolation; behavior electrical; percolation threshold ... See more keywords
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Effect of particle morphologies on the percolation of particulate porous media: A study of superballs

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Published in 2018 at "Powder Technology"

DOI: 10.1016/j.powtec.2018.05.015

Abstract: Abstract Particle morphology is a crucial factor of influencing the prediction of percolation threshold in the study of continuum percolation of particle systems. Previous works on the percolation of particle synthesis mainly focused on spheres,… read more here.

Keywords: particle morphologies; percolation; study; particle ... See more keywords