SrTiO3 nano-crystal samples with floccule or flake crystal morphology, which were indexed as a perovskite-type crystal structure based on the results of XRD and TEM, were successfully prepared by one-step liquid reaction method. And the growth mechanism of the SrTiO3 nano-crystals under the liquid condition with/without adding the surface active agent was investigated. It was found that adding the surface active agent contributes to the processing in which the ions gathering bodies transit to a more stable phase through the chemical reaction and form the flake SrTiO3 nano-crystals.
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