压应力对压电半导体氧化锌/金刚石中爱波传播的影响:屏蔽效应

IF 1.9 4区 工程技术 Q3 MECHANICS
Issam Ben Salah , Cherif Othmani , Anouar Njeh
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引用次数: 0

摘要

异质结构中的外加应力问题是材料科学与技术领域的一个老大难问题。为了更好地理解如何在各种工程工业应用中解决这一问题,人们从数值和实验角度做出了巨大努力。在本文中,我们用数值计算了压应力对 ZnO/Diamond 预应力压电半导体中爱波传播的影响。明确考虑了 p 型半导体,其中空穴和电子的浓度分别为 p0 = 1 × 1024m-3 和 n0 = 1 × 1023m-3。数值结果表明,当单轴应力等于 -100 兆帕时,爱波的相位速度会降低。此外,这种单轴压应力还有助于降低电动势的大小以及空穴和电子的浓度。与此同时,"屏蔽效应 "在无应力和预应力结构中保持相似。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Effects of compressive stress on wave Love waves propagation in a piezoelectric semiconductor ZnO/Diamond: A screening effect

The issue of applied stress in hetero-structures is a persistent problem in materials science and technology. Significant efforts have been made from both numerical and experimental points of view to gain a better understanding of how to address this issue in various engineering industrial applications. In this paper, we numerically calculate the effects of compressive stress on Love waves propagation in a pre-stressed piezoelectric semiconductor ZnO/Diamond. The p-type semiconductor is explicitly taken into account, where the concentrations of holes and electrons are p0 = 1 × 1024m−3and n0 = 1 × 1023m−3, respectively. Numerical results show that the phase velocities of Love waves decrease with uniaxial stress equal to -100 MPa. In addition, this uniaxial compressive stress contributes to a decrease in the magnitude of the electric potential and the concentrations of holes and electrons. In the meantime, the “Screening effect” remains similar for both the unstressed and the pre-stressed structures.

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来源期刊
CiteScore
4.10
自引率
4.20%
发文量
114
审稿时长
9 months
期刊介绍: Mechanics Research Communications publishes, as rapidly as possible, peer-reviewed manuscripts of high standards but restricted length. It aims to provide: • a fast means of communication • an exchange of ideas among workers in mechanics • an effective method of bringing new results quickly to the public • an informal vehicle for the discussion • of ideas that may still be in the formative stages The field of Mechanics will be understood to encompass the behavior of continua, fluids, solids, particles and their mixtures. Submissions must contain a strong, novel contribution to the field of mechanics, and ideally should be focused on current issues in the field involving theoretical, experimental and/or applied research, preferably within the broad expertise encompassed by the Board of Associate Editors. Deviations from these areas should be discussed in advance with the Editor-in-Chief.
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