Perovskite Nanocube Fabrication

Controlled fabrication of ceramic perovskites via solvothermal method.


Due to the fact that various ceramic perovskites have been shown to possess a high dielectric constant in addition to ferroelectric properties, they have been of particular interest for the creation of high-charge storage capacitors. Perovskites of various compositions have been developed using solvothermal methods. BaTiO3, BaxSr1-xTiO3, BaxCa1-xTiO3, and BaxZr1-xTiO3 nanoparticles have been synthesized. TEM images have shown that BST nanoparticles synthesized at temperatures below 200oC are quasi-monodisperse. Resulting colloidal solutions show excellent stability against aggregation allowing the colloidal Ba0.5Sr0.5TiO3 nanocrystals to be used as building blocks for the fabrication of flexible energy storage devices. Nanocrystals will be converted from hydrophobic to hydrophilic. Hydrophilic nanoparticle dispersed inks will then be created and used to print on various substrates via inkjet printer.

- Tiffany Lou