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Improve piezoelectricity and elasticity of Ce-doped BaTiO3 nanofibers - towards energy harvesting application

机译：改善铈掺杂BaTiO3纳米纤维的压电性和弹性-面向能量收集应用

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摘要

Ce-doped BaTiO3 (BTO) nanofibers were prepared by sol-gel combined with electrospinning method. The influence of cerium ions concentration on BTO crystal phase, microstructure, piezoelectricity, and elasticity were investigated. The energy harvesting properties of the device based on Ce-doped BTO nanofibers were tested. The piezoelectric property of BTO nanofibers were improved after cerium doping. The elastic property of the fibers changed little after cerium doping. The elastic modulus of the pure BTO nanofibers was about 3.37 GPa. When the Ce/Ba atomic ratio was 0.6%, the elastic modulus dropped to 1.18 GPa. Our analysis of the temperature range of the energy harvesting device indicates that an effective operation can be obtained when the working temperature of the device is below 110 degrees C. The largest delivered power of the energy harvesting device was 14.37 mW with a load resistance of 100 MU, when the Ce/Ba atomic ratio was 0.6%.
机译：溶胶-凝胶结合静电纺丝法制备了铈掺杂BaTiO3（BTO）纳米纤维。研究了铈离子浓度对BTO晶体相，微观结构，压电性和弹性的影响。测试了基于Ce掺杂的BTO纳米纤维的设备的能量收集特性。铈掺杂后，BTO纳米纤维的压电性能得到改善。铈掺杂后纤维的弹性几乎没有变化。纯BTO纳米纤维的弹性模量约为3.37 GPa。当Ce / Ba原子比为0.6％时，弹性模量下降至1.18GPa。我们对能量收集设备的温度范围的分析表明，当该设备的工作温度低于110摄氏度时，就可以获得有效的操作。能量收集设备的最大输出功率为14.37 mW，负载电阻为100 MU，当Ce / Ba原子比为0.6％时。

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