Atomistic Field Theory for contact electrification of dielectrics

Khalid M. Abdelaziz; James Chen; Tyler J. Hieber; Zayd C. Leseman

doi:10.1016/j.elstat.2018.09.001

Atomistic Field Theory for contact electrification of dielectrics

Khalid M. Abdelaziz, James Chen^*, Tyler J. Hieber, Zayd C. Leseman

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

Abstract

The triboelectrification of conducting materials can be explained by electron transfer between different Fermi levels. However, triboelectrification in dielectrics is poorly understood. The surface dipole formations are shown to be caused by the contact-induced surface lattice deformations. An Atomistic Field Theory (AFT) based formulation is utilized to calculate the distribution of the polarization, electric and potential fields. The induced fields are considered as the driving force for charge transfer. The simulation results show that a MgO/BaTiO₃ tribopair can generate up to 104 V/cm², which is comprable with the data in the published literature.

Original language	English
Pages (from-to)	10-15
Number of pages	6
Journal	Journal of Electrostatics
Volume	96
DOIs	https://doi.org/10.1016/j.elstat.2018.09.001
State	Published - Dec 2018
Externally published	Yes

Bibliographical note

Publisher Copyright:
© 2018 Elsevier B.V.

Keywords

Atomistic formulation
Lattice dynamics
Triboelectrification

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Biotechnology
Condensed Matter Physics
Surfaces, Coatings and Films
Electrical and Electronic Engineering

Access to Document

10.1016/j.elstat.2018.09.001

Cite this

@article{399bab220ef64878a02a706edf469ca9,

title = "Atomistic Field Theory for contact electrification of dielectrics",

abstract = "The triboelectrification of conducting materials can be explained by electron transfer between different Fermi levels. However, triboelectrification in dielectrics is poorly understood. The surface dipole formations are shown to be caused by the contact-induced surface lattice deformations. An Atomistic Field Theory (AFT) based formulation is utilized to calculate the distribution of the polarization, electric and potential fields. The induced fields are considered as the driving force for charge transfer. The simulation results show that a MgO/BaTiO3 tribopair can generate up to 104 V/cm2, which is comprable with the data in the published literature.",

keywords = "Atomistic formulation, Lattice dynamics, Triboelectrification",

author = "Abdelaziz, \{Khalid M.\} and James Chen and Hieber, \{Tyler J.\} and Leseman, \{Zayd C.\}",

note = "Publisher Copyright: {\textcopyright} 2018 Elsevier B.V.",

year = "2018",

month = dec,

doi = "10.1016/j.elstat.2018.09.001",

language = "English",

volume = "96",

pages = "10--15",

journal = "Journal of Electrostatics",

issn = "0304-3886",

publisher = "Elsevier B.V.",

}

TY - JOUR

T1 - Atomistic Field Theory for contact electrification of dielectrics

AU - Abdelaziz, Khalid M.

AU - Chen, James

AU - Hieber, Tyler J.

AU - Leseman, Zayd C.

PY - 2018/12

Y1 - 2018/12

N2 - The triboelectrification of conducting materials can be explained by electron transfer between different Fermi levels. However, triboelectrification in dielectrics is poorly understood. The surface dipole formations are shown to be caused by the contact-induced surface lattice deformations. An Atomistic Field Theory (AFT) based formulation is utilized to calculate the distribution of the polarization, electric and potential fields. The induced fields are considered as the driving force for charge transfer. The simulation results show that a MgO/BaTiO3 tribopair can generate up to 104 V/cm2, which is comprable with the data in the published literature.

AB - The triboelectrification of conducting materials can be explained by electron transfer between different Fermi levels. However, triboelectrification in dielectrics is poorly understood. The surface dipole formations are shown to be caused by the contact-induced surface lattice deformations. An Atomistic Field Theory (AFT) based formulation is utilized to calculate the distribution of the polarization, electric and potential fields. The induced fields are considered as the driving force for charge transfer. The simulation results show that a MgO/BaTiO3 tribopair can generate up to 104 V/cm2, which is comprable with the data in the published literature.

KW - Atomistic formulation

KW - Lattice dynamics

KW - Triboelectrification

UR - https://www.scopus.com/pages/publications/85053209909

U2 - 10.1016/j.elstat.2018.09.001

DO - 10.1016/j.elstat.2018.09.001

M3 - Article

AN - SCOPUS:85053209909

SN - 0304-3886

VL - 96

SP - 10

EP - 15

JO - Journal of Electrostatics

JF - Journal of Electrostatics

ER -

Atomistic Field Theory for contact electrification of dielectrics

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

Access to Document

Fingerprint

Cite this