Effect of ceria concentration of Strontium titanate on the structural, optical, dielectric and electrical properties

Carbonized propagation synthesis of porous CQDs–SrTiO3/graphene and its photocatalytic performance for removal of methylene blue

“…4e appeared at binding energies of 458.1 and 463.9 eV, while for CSG-5 they appeared at 457.9 and 463.6 eV, respectively. 34 Compared with SrTiO 3 , the Ti peak in CSG-5 shifted by 0.2–0.3 eV to the low binding energy direction, which was attributed to the combination of Ti and C. 35,36…”

Room temperature ferroic orders in Zr and (Zr, Ni) doped SrTiO$_3$

“…8. This indicates enhanced mobile charge hopping in the grain boundaries and sample-electrode interfaces [35,60]. The interfacial charges can produce a thin conductive layer at the sample surface effectively reducing the resistivity at high frequencies.…”

“…The pure STO exhibit cubic P m-3m phase (space group no. 221) according to the standard JCPDS data (01-084-0443) [17,35]. The phase purity and crystalline nature of the samples were evident from the sharp and intense diffraction peaks.…”

“…The dielectric behaviour is controlled by different constituents polarizations arising from interfacial charge, space charge, oriental dipolar, ionic and electronic contributions [53]. Owing to the fact that the real decays rapidly beyond 1 kHz, we attribute this to interfacial and space charge polarization effects [35,54,55]. This polarization may arise due to charges trapped at the interface between the sample and the electrodes, space charges at the grain boundaries, interstitial and voids.…”

Impact of rare earth (La, Pr, Eu) impurities on the perovskite SrTiO3 for efficient photocatalytic activity

“…Due to the hybridisation energy levels of the host elements, the orbital's state of dopants is localised usually between the conduction band and the valence band [23,24], therefore, to surpass the problem of the large band gap, incorporation of impurities in this kind of oxides (SrTiO 3 , TiO 2 , SnO 2 ..) was widely used as a common technic to decrease the band gap, especially when doped with the appropriate elements such as rare earths because they are inert materials and may govern the optimum electronic and photocatalytic performance of doped compounds [25][26][27]. Besides, several experimental research have successfully synthesised Sr 1-x RE x TiO 3 for instance La, Eu, Er and Ce utilising the following methods of fabrication sol-gel [28], chemical process [29], Polymerised complex method [30], and solid state reactions [31] respectively. Therefore, doping material is an efficient strategy for the enhancement of the absorbed light in the visible region which is favourable for effective solar cells, photo-electrochemical water splitting, and hydrogen storage [32,33].…”