High‐Temperature BiScO3‐PbTiO3 Piezoelectric Vibration Energy Harvester |
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| Authors: | Jingen Wu Huaduo Shi Tianlong Zhao Yang Yu Shuxiang Dong |
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| Affiliation: | Department of Materials Science and Engineering, College of Engineering, Peking University, Beijing, China |
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| Abstract: | Conventionally, effective mechanical vibration energy harvesting is based on (Pb,Zr)TiO3 (PZT) ceramics, poly(vinylidene fluoride) (PVDF) polymers or PVDF/PZT or other piezoelectric composite materials, and their working temperature is normally limited to room temperature (R‐T) or below 150 °C. Here, bismuth scandium lead titanate (BiScO3‐PbTiO3, abbreviated as BSPT) ceramic is reported which has a high Curie temperature point around 450 °C and its application for high‐temperature (H‐T) vibration energy harvesting. Experimental results show that it exhibits an excellent H‐T piezoelectricity, converting mechanical vibration energy into electric power effectively in a wide temperature range from R‐T till 250 °C. This research shows the BSPT piezoelectric energy harvester having the potential application for self‐power source of wireless sensor network system in high temperature circumstance. |
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| Keywords: | energy harvesters high temperature piezoelectrics |
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