Nano Letters · 2012 · 81 citations · 15 references
Natural SciencesMaterials EngineeringMaterials ScienceCeramic MaterialsNanomaterialsNanotechnologyFerroelectric MaterialsMetal Oxide NanomaterialsNanoenergy MaterialsNanomechanical PropertiesNanowiresPiezoelectric MaterialsNanoactuatorsNanogeneratorsPiezoelectric EffectPiezoelectric NanomaterialsPiezoelectric NanowiresSingle-crystal PiezoelectricsVoltageZinc Oxide Nanostructures
A profound way to increase the output voltage (or power) of the piezoelectric nanogenerators is to utilize a material with higher piezoelectric constants. Here we report the synthesis of novel piezoelectric 0.72Pb(Mg(1/3)Nb(2/3))O(3)-0.28PbTiO(3) (PMN-PT) nanowires using a hydrothermal process. The unpoled single-crystal PMN-PT nanowires show a piezoelectric constant (d(33)) up to 381 pm/V, with an average value of 373 ± 5 pm/V. This is about 15 times higher than the maximum reported value of 1-D ZnO nanostructures and 3 times higher than the largest reported value of 1-D PZT nanostructures. These PMN-PT nanostructures are of good potential being used as the fundamental building block for higher power nanogenerators, high sensitivity nanosensors, and large strain nanoactuators.
15
Sheng Xu, Yong Qin, Chen Xu et al. · Nature Nanotechnology · 2010 · 1.6K citations
1.6 V Nanogenerator for Mechanical Energy Harvesting Using PZT Nanofibers
Xi Chen, Shiyou Xu, Nan Yao et al. · Nano Letters · 2010 · 898 citations