title: Ion Structure Near a Core-Shell Dielectric Nanoparticle.
abstract: A generalized image charge formulation is proposed for the Green's function of a core-shell dielectric nanoparticle for which theoretical and simulation investigations are rarely reported due to the difficulty of resolving the dielectric heterogeneity. Based on the formulation, an efficient and accurate algorithm is developed for calculating electrostatic polarization charges of mobile ions, allowing us to study related physical systems using the Monte Carlo algorithm. The computer simulations show that a fine-tuning of the shell thickness or the ion-interface correlation strength can greatly alter electric double-layer structures and capacitances, owing to the complicated interplay between dielectric boundary effects and ion-interface correlations.
authors.affiliation: School of Mathematical Sciences, Institute of Natural Sciences, and MoE Key Lab of Scientific and Engineering Computing, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Manman
authors.initials: M
authors.lastname: Ma
authors.affiliation: School of Mathematical Sciences, Institute of Natural Sciences, and MoE Key Lab of Scientific and Engineering Computing, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Zecheng
authors.initials: Z
authors.lastname: Gan
authors.affiliation: School of Mathematical Sciences, Institute of Natural Sciences, and MoE Key Lab of Scientific and Engineering Computing, Shanghai Jiao Tong University, Shanghai 200240, China.
authors.forename: Zhenli
authors.initials: Z
authors.lastname: Xu