Grand-canonical Monte Carlo simulation study of polyelectrolyte diode

Eonji Lee, Ji Hyung Han, Rakwoo Chang, Taek Dong Chung

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

2 Scopus citations

Abstract

In this study we have performed grand canonical Monte Carlo (GCMC) simulations to understand the working mechanism of polyelectrolyte diodes, which have the electrostatic junction between two oppositely charged polyelectrolyte. Polyelectrolyte gels are modeled as melts of freely-jointed hard chains with charged monomers and small ions as charged hard spheres. We examined the effects of applied voltage and gel concentration on the current flow. We observed that as positive voltage is applied (forward state), small ions start moving across the gel to induce electric current flow. On the other hand, with negative voltage (reverse state) current flow is significantly weak. These simulation results are in good agreement with experimental results. We also examined the effects of applied voltage, gel structure, ion concentration.

Original languageEnglish
Title of host publicationInternational Conference of Computational Methods in Sciences and Engineering 2009, ICCMSE 2009
Pages1239-1242
Number of pages4
DOIs
StatePublished - 2012
EventInternational Conference of Computational Methods in Sciences and Engineering 2009, ICCMSE 2009 - Rhodes, Greece
Duration: 29 Sep 20094 Oct 2009

Publication series

NameAIP Conference Proceedings
Volume1504
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Conference

ConferenceInternational Conference of Computational Methods in Sciences and Engineering 2009, ICCMSE 2009
Country/TerritoryGreece
CityRhodes
Period29/09/094/10/09

Keywords

  • Grand-Canonical Monte Carlo Simulation
  • Polyelectrolyte Diode
  • Primitive Model

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