BaTiO3 Nanotubes-Based Flexible and Transparent Nanogenerators

J Phys Chem Lett. 2012 Dec 6;3(23):3599-604. doi: 10.1021/jz301805f. Epub 2012 Nov 27.

Abstract

We have developed a simple, cost-effective, and scalable approach to fabricate a piezoelectric nanogenerator (NG) with stretchable and flexible characteristics using BaTiO3 nanotubes, which were synthesized by the hydrothermal method. The NG was fabricated by making a composite of the nanotubes with polymer poly(dimethylsiloxane) (PDMS). The peak open-circuit voltage and short-circuit current of the NG reached a high level of 5.5 V and 350 nA (current density of 350 nA/cm(2)), respectively. It was used to directly drive a commercial liquid crystal display. The BaTiO3 nanotubes/PDMS composite is highly transparent and useful for a large-scale (11 × 11 cm) fabrication of lead-free piezoelectric NG.

Keywords: BaTiO3 nanotubes; flexible; large-scale; nanogenerator; transparent.