La添加PZT素子の発電特性評価

抄録

The development of micro power supply technologies for mobile phones and portable electronics has increased in recent years. Methods of self power generation using the vibration loads of structures have attracted attention as the power supply technologies. The purpose of the study is to develop a high- efficiency PZT generator element that utilizes the vibration loads in the support members of a structure. However, piezoelectric elements only generate power in the order of several microwatts, so improving their power generation capacity is of the utmost importance.

In this study, we focused on lead zirconate titanate (Pb(Zr,Ti)O3, PZT) as the generating piezoelectric element. 1 mol% La-doped PZT element was prototyped, and vibration power generation experiment was conducted to evaluate power generation characteristics. As a result, it was confirmed that it shows higher power generation characteristics than 1 mol% Nb-doped PZT element.