Piezotronic transistors in nonlinear circuit:Model and simulation

• 作 者: HU GongWei ZHANG YuJing LUO Lu YANG Yang ZHANG Yan WANG ZhongLin
• 机 构: Institute of Theoretical Physics,and Key Laboratory for Magnetism and Magnetic Materials of MOE,Lanz
• 出 处: Science China(Technological Sciences)
• 发表日期: 2015年08期
• 关键词: transistor piezoelectric charges switched junction simplified insight chaotic Fi

For the materials that simultaneously exhibit piezoelectric and semiconductor properties,such as wurtzite Zn O,Ga N and In N,as well as two-dimensional single Mo S2,piezoelectric charges induced by externally applied strain can tune/control carrier transport at a metal-semiconductor contact or semiconductor junction,which is named piezotronic effect.Metal-semiconductor-metal piezotronic transistors are key piezotronic nanodevices for electromechanical applications,and they are typical nonlinear elements.In this paper,a simplified current-voltage analysis solution of piezotronic transistors is developed,which can be used for circuit design and simulation.Furthermore,the typical nonlinear circuit:Chua’s circuit based on piezotronic transistors is simulated.We find that the output signal of the piezotronic transistor circuit can be switched and changed asymmetrically by externally applied strain.This study provides insight into the nonlinear properties of the piezotronic transistor,as well as guidance for piezotronic transistor nonlinear circuit application.

For the materials that simultaneously exhibit piezoelectric and semiconductor properties, such as wurtzite Zn O, Ga N and In N, as well as two-dimensional single Mo S2, piezoelectric charges induced by externally applied strain can tune / control carrier transport at a metal- semiconductor contact or semiconductor junction, which is named piezotronic effect. Metal-semiconductor-metal piezotronic transistors are key piezotronic nanodevices for electromechanical applications, and they are typical nonlinear elements. In this paper, a simplified current-voltage analysis solution of piezotronic transistors is developed , which can be used for circuit design and simulation. Futurertherm, the typical nonlinear circuit: Chua’s circuit based on piezotronic transistors is simulated. We find that the output signal of the piezotronic transistor circuit can be switched and changed asymmetrically by externally applied strain. study provides insight into the nonlinear properties of the piezotronic transistor, as wel l as guidance for piezotronic transistor nonlinear circuit application.