介电衬底上中性粒子的静电相互作用:通过多图像方法和有效偶极子方法的理论研究。

IF 2.4 3区 物理与天体物理 Q1 Mathematics
Xin Li, Changhao Li, Xiangui Chen, Zaixin Wang, Sun Min, Decai Huang
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引用次数: 0

摘要

提出了一种精确计算中性介电粒子与均匀带电介质衬底之间静电相互作用的多图像方法。粒子与溶剂介质之间介电常数的差异导致了粒子极化方向的反转。溶剂介质和衬底之间介电常数的变化导致粒子和衬底之间的作用力从吸引力转变为排斥力。基片上的极化电荷由于相互感应而产生非均匀静电场。静电操作的这些特性决定了颗粒是被吸附到衬底上还是被推开。自组装粒子倾向于在衬底上以稳定的六边形结构聚集。这些发现为介电衬底上涉及中性粒子的自组装过程提供了独特的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Electrostatic interaction of neutral particles on a dielectric substrate: A theoretical study via a multiple-image method and an effective-dipole approach.

A multiple-image method is developed to accurately calculate the electrostatic interaction between neutral dielectric particles and a uniformly charged dielectric substrate. The difference in dielectric constants between the particle and the solvent medium leads to a reversal of polarization direction of the particle. The variance in dielectric constants between the solvent medium and the substrate causes a transition from attractive to repulsive forces between the particle and the substrate. A nonuniform electrostatic field is generated by the polarized charges on the substrate due to mutual induction. These characteristics of electrostatic manipulation determine whether particles are adsorbed onto the substrate or pushed away from it. The self-assembled particles tend to aggregate in a stable hexagonal structure on the substrate. These findings provide unique insights into self-assembly processes involving neutral particles on a dielectric substrate.

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来源期刊
Physical review. E
Physical review. E 物理-物理:流体与等离子体
CiteScore
4.60
自引率
16.70%
发文量
0
审稿时长
3.3 months
期刊介绍: Physical Review E (PRE), broad and interdisciplinary in scope, focuses on collective phenomena of many-body systems, with statistical physics and nonlinear dynamics as the central themes of the journal. Physical Review E publishes recent developments in biological and soft matter physics including granular materials, colloids, complex fluids, liquid crystals, and polymers. The journal covers fluid dynamics and plasma physics and includes sections on computational and interdisciplinary physics, for example, complex networks.
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