Multiphase Polarization in Ion-Intercalation Nanofilms: General Theory Including Various Surface Effects and Memory Applications

Huanhuan Tian; Ju Li; Martin Z. Bazant

首页> 外文期刊>Advanced functional materials >Multiphase Polarization in Ion-Intercalation Nanofilms: General Theory Including Various Surface Effects and Memory Applications

【24h】

Multiphase Polarization in Ion-Intercalation Nanofilms: General Theory Including Various Surface Effects and Memory Applications

机译：Multiphase Polarization in Ion-Intercalation Nanofilms: General Theory Including Various Surface Effects and Memory Applications

获取原文

获取原文并翻译 | 示例

掌桥外文数据库（机构版） >>

开具论文收录证明 >>

文献代查 >>

页面导航

摘要
著录项
相关主题

摘要

Ion concentration polarization (CP, current-induced concentration gradientadjacent to a charge-selective interface) has been well studied for singlephasemixed conductors (e.g., liquid electrolyte), but multiphase CP has beenrarely addressed in literature. In our recent publication, we proposed that CPabove certain threshold currents can flip the phase distribution in multiphaseion-intercalation nanofilms sandwiched by ion-blocking electrodes. Thisphenomenon is known as multiphase polarization (MP). It is then proposedthat MP can further lead to nonvolatile interfacial resistive switching (RS) forasymmetric electrodes with ion-modulated electron transfer, which theory canreproduce the experimental results of LTO memristors. In this study, a comprehensive2D phase-field model is derived for coupled ion-electron transportin ion-intercalation materials, with surface effects including electron transferkinetics, non-neutral wetting, energy relaxation, and surface charge. Then, themodel is used to study MP. Time evolution of phase boundaries is presented,and analyze the switching time, current, energy, and cyclic voltammetry, forvarious boundary conditions. It is found that the switching performancecan be improved significantly by manipulating surface conditions and meanconcentration. Finally, the prospects of MP-based memories and possibleextensions of the current model is discussed.

著录项

来源
《Advanced functional materials》 |2023年第23期|2213621.1-2213621.19|共19页
作者
Huanhuan Tian; Ju Li; Martin Z. Bazant;
展开▼
作者单位

Department of Chemical EngineeringMassachusetts Institute of TechnologyCambridge, MA 02139, USA;

Department of Nuclear Science and Engineering and Departmentof Materials Science and EngineeringMassachusetts Institute of TechnologyCambridge, MA 02139, USA;

Department of Chemical Engineering and Department of MathematicsMassachusetts Institute of TechnologyCambridge, MA 02139, USA;

展开▼
收录信息
原文格式 PDF
正文语种英语
中图分类
关键词
coupled ion-electron transport; ion intercalation; phase-field modeling; resistive switching memories;

Multiphase Polarization in Ion-Intercalation Nanofilms: General Theory Including Various Surface Effects and Memory Applications

摘要

著录项

相关主题

期刊订阅