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Piezoelectric energy harvesting using shear mode 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 single crystal cantilever

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10 Author(s)
Ren, Bo ; Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 201800, People''s Republic of China ; Siu Wing Or ; Zhang, Yaoyao ; Zhang, Qinhui
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In this letter we presented a cantilever beam used for vibration energy harvesting based on shear mode 0.71Pb(Mg1/3Nb2/3)O3–0.29PbTiO3 single crystal. The working principle of the device was inferred and the factors influencing the output were obtained using an analytical method. The electrical properties under different conditions were studied systematically. Under a cyclic force of 0.05 N (peak value), a peak voltage of 91.23 V, maximum power of 4.16 mW were measured at 60 Hz with a proof mass of 0.5 g. The results demonstrate the potential of the device in energy harvesting applied to low-power portable electronics and wireless sensors.

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Applied Physics Letters  (Volume:96 ,  Issue: 8 )