Perovskite oxides have been extensively studied due to their wide range of applications in electronics, catalysts and energy storage. Strontium Titanate (SrTiO3) is a perovskite-type oxide that possesses unique physical and chemical properties such as thermal stability, superconductivity, high dielectric constant and good photocatalytic activity. These properties are highly dependent on the morphology and crystal size and can be further tailored by compositional design, making SrTiO3 one of the most adaptable and functional perovskite oxide materials. Recent studies have shown great interest in the cubic morphology of SrTiO3 as it provides larger surface areas, interfaces, active sites for reactions and act as ideal building blocks for complex device fabrication. To date, several approaches have been explored to synthesize nanosized SrTiO3 particles. Methods ranging from hydrothermal/solvothermal reactions, sol-gel processes to molten-salt synthesis and combustion. Although these methods have been proved successful in the synthesis of nanocubes, the adequate control of the particle size and morphology remains one of the major challenges. In this thesis, a facile sol-precipitation approach to synthesise SrTiO3 is used. This method is simple, cost-effective, non-time consuming and can be adapted for mass production. Compared to previous synthesis methods and studies, the SrTiO3 nanocubes synthesized by this method have a more regular cubic shape, smaller particle size of ~10 nm and higher monodispersity, allowing for the ease of doping. La3+ and Fe3+ ions were used as ion donor and ion acceptor respectively in order to enhance the electric properties of the nanocubes. vii In this thesis, the multifunctionality of these nanocubes was explored by studying their self-assembly ability to fabricate thin films, their resistive switching memory behaviour for memory applications, their behaviour during and after sintering for ceramic-based applications and their photocatalytic activity for hydrogen production by water splitting.