Effects of two Local Uniform Temperature Changes on Electrical Behaviors of a Piezoelectric Semiconductor Fiber
- Resource Type
- Conference
- Authors
- CHENG, Ruo-ran; ZHANG, Chun-li
- Source
- 2019 14th Symposium on Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA) Piezoelectrcity, Acoustic Waves and Device Applications (SPAWDA), 2019 14th Symposium on. :1-6 Nov, 2019
- Subject
- Fields, Waves and Electromagnetics
Optical fiber polarization
Optical fiber theory
Electric potential
Optical fiber devices
Couplings
Thermal loading
Mathematical model
Thermal
Piezoelectric semiconductor
Pyroelectric
Piezotronic
- Language
We theoretically study the behaviors of a piezoelectric semiconductor (PS) fiber in the extensional deformation resulted from the two local thermal loads using the multi-field coupling theory for thermo-piezoelectric semiconductor. With the linearized method, the analytical results are obtained for small temperature changes. For large temperature changes, the linearized method is not valid. In this case, we conduct a nonlinear analysis by COMSOL. The numerical results show that the potential barrier and well produced by the temperature changes through a series of coupling effects could be used to manipulate the forward/reverse currents in the fiber simultaneously.