Ruyan Guo

TL;DR: In this paper, the application and optimization of direct piezoelectric effect in energy harvesting from low frequency mechanical vibrations such as from roadway torsions is studied. But the primary focus of this paper is on the application of direct PDE in the energy harvesting process.

TL;DR: In this paper, the authors describe the use of piezoelectric materials for applications in microelectromechanical systems, electromechanical devices, civil infrastructure, in transportation and smart devices.

TL;DR: In this paper, the as-grown BaTiO3 thin films have pure BaO3 crystal phase and the TEM studies indicate that the films are composed of crystalline assemblage of nanopillars with average cross sections from 100 nm to 200 nm and can be directly integrated on the Ni tapes without the formation of NiO interlayer.

TL;DR: In this paper, a promising environmentally friendly lead-free polymer 0-3 composite, using polyvinylidene fluoride and barium sodium titanate niobate compounds, was synthesized and structurally and dielectrically characterized.

TL;DR: In this article , a nano-scale spherical Na3V2(PO4)2F3 with a NASICON structure phase was prepared with a spray drying technique, and the bagasse in Guangxi, China was selected as the carbon source to prepare Na3 V2(POS4) 2F3/C. The optimal preparation conditions of the composite determined using thermogravimetry, X-ray diffraction, scanning electron microscopy and electrochemical testing were: a calcination temperature of 650 °C and a 20% carbon source.