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Polyelectrolyte solution under spatial and dielectric confinement

2019/06/03 by Debarshee Bagchi, Trung Dac Nguyen, Bagchi, Debarshee +3 · 1 citation
Chemistry · Engineering · #Electrostatics and Colloid Interactions #Electrowetting and Microfluidic Technologies #FOS: Physical sciences #Materials Science (cond-mat.mtrl-sci) #Microfluidic and Capillary Electrophoresis Applications #Soft Condensed Matter (cond-mat.soft) #Statistical Mechanics (cond-mat.stat-mech)

paper · pdf · doi:10.48550/arxiv.1906.01106

openalex publication_date 2019/06/03 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Polyelectrolytes under confinement are crucial for energy storage and for understanding biomolecular functions. Using molecular dynamics simulations, we analyze a polyelectrolyte solution confined between two oppositely charged planar dielectric surfaces and include surface polarization effects due to dielectric mismatch at the two electrodes. Although the effect of polarization on the charge distribution seems minor, we find that surface polarization enhances energy storage and also leads to the emergence of negative differential capacitance in confined polyelectrolyte solutions.

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