Mono-dispersed BaTiO3 nanocubes are synthesized by hydrothermal process.
High quality BaTiO3 nanocubes possess smooth surface and standard corner angle.
The surface shape of BaTiO3 nanocubes is controlled by oleic acid/tert-butylamine.
The controlling mechanism of oleic acid/tert-butylamine is analyzed systematically.
BaTiO3 nanocrystal with terrace structure are synthesized controllably.