KNN nanoparticle, piezoelectric nanocomposite, energy harvesting, self-powered sensors
We report a novel self-powered nanocomposite sensor composed of K0.5Na0.5NbO3 (KNN) nanoparticles (NPs) and multiwalled carbon nanotubes (MW-CNTs). The KNN NPs and MW-CNTs are dispersed in polydimethylsioxane by mechanical agitation to produce a piezoelectric nanocomposite device. The device exhibits an output voltage of approximately 30 V and output current of approximately 15 μA. Furthermore, the device exhibits potential as a self-powered pressure sensor because the output voltage can be tested to detect the pressure applied to the device and does not require other sources.
Tsinghua University Press
Zhe Wang, Qingtang Xue, Yi Yang et al. K0.5Na0.5NbO��-Based Self-Powered Pressure Sensor. Tsinghua Science and Technology 2015, 20(3): 264-269.