In this paper, the governing equation of a piezoelectric semiconductor (PSC) is derived after consideration flexoelectricity and strain gradient effect. A one-dimensional first-order beam model obtained through integration across its section. Based on model, theoretical analysis carried out for cantilever PSC nanowire subjected to time-harmonic transverse shear force. The effects bending vibrat...

To describe a nonlinear ultrasonic wave in semiconductor with charged dislocations, an evolution equation is obtained that generalizes the well-known equations of dynamics: Burgers and Korteweg de Vries. By method truncated decompositions, exact analytical solution kink profile has been found. The kind (increasing, decreasing) its polarity depend on values parameters their signs. An containing ...

in this paper, a numerical solution procedure is presented for the forced vibration of a piezoelectric nanowire under thermo-electro-mechanical loads based on the nonlocal elasticity theory within the framework of timoshenko beam theory. using hamilton’s principle, the nonlocal governing differential equations are derived. the governing equations and the related boundary conditions are discreti...

In this work, we report an experimental technique with nanometer resolution to reveal the microstructural mechanism for electric fatigue in ferroelectrics. The electric field in situ transmission electron microscopy (TEM) was used to directly visualize the domain evolution during the fatigue process in a 0.7Pb(Mg1/3Nb2/ 3)O3–0.3PbTiO3 ceramic. The structure–property relationship was well demons...

This paper presents a finite element formulation for the dynamics analysis of the steady and transient states of a nonlinear piezoelectric beam. A piezoelectric beam with damping is studied under harmonic excitation. A numerical method is used for this analysis. In the paper, the central difference formula of four order is used and compared with the central difference formula of two order in th...

Engineering the electronic band structure using the piezopotential is an important aspect of piezotronics, which describes the coupling between the piezoelectric property and semiconducting behavior and functionalities. The time-independent band structure change under short-circuit condition is believed to be due to the remnant piezopotential present at the interface, a result of the finite cha...

energy harvesting from surrounding environment has been attractive for many researchers in recent years. therefore, developing appropriate test apparatus to study energy harvesting mechanisms and their performance is of paramount importance. due to their electromechanical characteristics, piezoelectric materials are used for harvesting energy from environmental vibrations. for optimum utilizati...

In this paper, we present mathematical analyses to consider the effect of material properties on the sensitivity of the Microelectromechanical systems (MEMS) piezoelectric hydrophone and improve the sensitivity by choosing the proper material. The selected structure in the present paper is a piezoelectric hydrophone able to work at low frequencies. The piezoelectric hydrophones are widely used ...

Graphite-like carbon nitride (g-C3N4) is considered as a promising candidate for energy materials. In this work, the biaxial strain (?4%–4%) effects on piezoelectric properties of g-C3N4 monolayer are studied by density functional theory (DFT). It found that increasing can reduce elastic coefficient C11-C12, and increases stress e11, which lead to enhanced d11. Compared unstrained one, 4% raise...

This Tutorial teaches the essential development of nitrogen-plasma-assisted molecular-beam-epitaxy grown InGaN nanowires as an application-inspired platform for energy harvesting and conversion applications by growing dislocation- strain-relieved axial InGaN-based nanowires. The aims to shed light on interfacial, surface, electrical, photoelectrochemical characteristics through nanoscale ultraf...