Thermal behavior and characteristic of submicron sized barium titanate ceramic synthesized by acetylacetonate precursor

Abstract This article reports the synthesis of tetragonal and submicron sized BaTiO 3 (BTO) ceramic prepared by Ba(acac) 2 and TiO(acac) 2 precursors. The thermal behavior and characteristic of BaTiO 3 ceramic were investigated by TG/DTA analyzer, XRD, SEM, Raman spectrum and ferroelectric property analyses. The results show that the thermal decomposition process of TiO(acac) 2 finished earlier than that of Ba(acac) 2 . The thermal reaction of the mixed precursors completed approximately at 800 °C. The results of the XRD and Raman spectrum analysis reveal that the product is tetragonal BTO ceramic. The SEM micrograph shows that the grain size of the BTO ceramic is 200–420 nm and the average size is 330 nm. The electric hysteresis loop of the submicron BTO ceramic shows a remanence and saturation polarization of 4.7 and 5.3 μ C/cm 2 , respectively. The BTO ceramic prepared in this study display favorable ferroelectric properties at the submicron level, which make it suitable for applications in microelectronic devices.