In this study, we report a hydrothermal synthesis in which BaTiO3 nanoparticles (NPs) with enhanced sizeuniformity and dispersibility are synthesized by increased time and temperature, increasing nucleation and diffusion rates.
The formation process of an uniform size of 20 nm BaTiO3 NPs, which has not been extensively researched, was optimizedthrough hydrothermal synthesis at 180oC. Simultaneous increase in the nucleation rate of TiO2 and diffusion length of Ba2+ions, resulting from a higher temperature, allowed for the synthesis of BaTiO3 NPs (20 nm) with significantly enhancedsize-uniformity. The size and crystallinity of BaTiO3 NPs which exhibit excellent dispersibility in hexane solvent wereinvestigated using transmission electron microscopy and X-ray diffraction. The results presented herein provide insights intoimproving the size uniformity and dispersibility of BaTiO3 NPs by hydrothermal synthesis for applications to variety ofelectronic devices.