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dc.contributor.authorGuo, M.K.
dc.contributor.authorQin, G.S.
dc.contributor.authorLu, Chunsheng
dc.contributor.authorZhao, M.H.
dc.identifier.citationGuo, M.K. and Qin, G.S. and Lu, C. and Zhao, M.H. 2022. Nonlinear Solution of a Piezoelectric PN Junction under Temperature Gradient. International Journal of Applied Mechanics. 14 (1): Article No. 2150125.

By considering the nonlinear coupling of piezoelectricity, thermoelectricity and pyroelectricity, this paper investigated the polarization effect related to temperature gradient in a thermo-piezoelectric PN junction. The analysis is based on a perturbation method and the one-dimensional nonlinear theories of thermo-piezoelectric semiconductors. It is shown that as thermal load increases, the linear solution gradually separates from the nonlinear one, in which the third-order solution is basically coincident with the nonlinear numerical solution of COMSOL. It is found that the electromechanical fields, carrier transport characteristics and turn-on voltage have a fast response to temperature gradient. By using the perturbation method, the approximate nonlinear solution of a thermo-piezoelectric PN junction can be obtained. Furthermore, the possibility of thermal manipulation is evident in a piezoelectric PN junction. These findings will be instructive to a good understanding of the electromechanical coupling characteristics of a PN junction and beneficial to development of a new method for its property modulation.

dc.titleNonlinear Solution of a Piezoelectric PN Junction under Temperature Gradient
dc.typeJournal Article
dcterms.source.titleInternational Journal of Applied Mechanics
curtin.departmentSchool of Civil and Mechanical Engineering
curtin.accessStatusFulltext not available
curtin.facultyFaculty of Science and Engineering
curtin.contributor.orcidLu, Chunsheng [0000-0002-7368-8104]
curtin.contributor.scopusauthoridLu, Chunsheng [57061177000]

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