Analytical Modeling of Piezoelectric Charge Gated Thin Film Transistor for Force Sensing and Energy Harvesting
This article addresses a novel electronic device that works in force sensing and energy harvesting dual modes.It combines a dual-gate thin film transistors (TFT) and a thin film piezoelectric material.In force sensing mode,the thin piezoelectric film is placed on the top of the transistor and works as top gate.That top gate voltage which is induced by the applied force will affect the output current of the transistor.An analytical model is given to elaborate how output current varies with applied force.Energy harvesting mode can be achieved by simply connecting the top,bottom gates and the drain terminals that will make the transistor work in the saturation region without any other external power supply.A detailed analysis on working principle and numerical study is conducted to evaluate its theoretical energy generation in one cycle with various forces.
Weiwei Li Jeffrey A.Weldon Kai Wang
Electrical & Computer Engineering,Carnegie Mellon University,5000 Forbes Avenue,Pittsburgh,PA,15217, Electrical & Computer Engineering,Carnegie Mellon University,5000 Forbes Avenue,Pittsburgh,PA,15217, Sun Yat-Sen University-Carnegie Mellon University Joint Institute of Engineering,No,132,East Waihuan
国内会议
第五届全国可穿戴计算学术会议暨2015可穿戴与医学变革研讨会
深圳
英文
1-5
2015-04-25（万方平台首次上网日期，不代表论文的发表时间）