Flexible lead-free piezo-/ferroelectric Bi 0.5 (Na 0.6 K 0.4 ) 0.5 TiO 3 ceramic incorporated PDMS polymer composites for energy harvesting application
作者： Kriti Batra , Nidhi Sinha , Binay Kumar , None
DOI: 10.1007/S10854-019-00917-W
关键词:
摘要: Environment friendly piezoelectric micro/nanogenerators have attracted tremendous attention due to the increasing demand of portable self-powered devices. Here, we report synthesis Bi0.5(Na0.6K0.4)0.5TiO3 (BNKT) ceramic via solid state reaction method and fabrication BNKT:PDMS based flexible energy harvester. The synthesized BNKT exhibits well-defined fatigue free P-E hysteresis loops up 104 cycles favourable for high precision capacitors sensors. A value charge coefficient (d33 = 154 pC N−1) was measured ceramic, which indicates its potential application in harvesting series composite microgenerators were fabricated with 10, 20, 30 40 wt% content their dielectric electrical properties investigated. harvester achieved highest constant conductivity, whereas device 30 wt% generated open circuit voltage about 11 V under periodic compressive force 20 N. These results imply that lead may be applied pressure sensors various
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