Characterization and Physical Properties of Ba_0.9Sb_0.1TiO₃ Solid Solution

Abstract

BaTiO 3 is known to be an environmentally friendly electronic material with a phase transition temperature that can be controlled through the substitution of an appropriate additive. Physical changes of grain growth in Ba 0.9 Sb 0.1 TiO 3 were analyzed by adding a small amount of antimony to pure BaTiO 3. The Ba 0.9 Sb 0.1 TiO 3 solid solution with antimony substitution was prepared under various calcination and sintering conditions. The optimal conditions for sintering were confirmed and the grain growth process was clearly understood. As a result, the relationship between the dielectric properties and the polycrystalline structure of Ba 0.9 Sb 0.1 TiO 3 substituted with antimony was confirmed. The maximum dielectric constant of the Ba 0.9 Sb 0.1 TiO 3 solid solution was found to exceed about 5500 and the dielectric constant at room temperature reached nearly 4000. The transition temperature of Ba 0.9 Sb 0.1 TiO 3 was shifted closer to room temperature than that of pure BaTiO 3. Unlike the phase transition behavior of pure BaTiO 3 , the dielectric constant curve, which is a function of temperature for all samples, showed a very gradual change.

Surface Energy Induced Vertical Phase Separation of Nanomorphology in Polymer Solar Cells

“…There are numerous studies on enhancing the crystallinity and achieving favorable phase separation in BHJ films, which are essential tasks for enhancing the charge separation, charge transport, and selective collection of charge carriers into proper electrodes. Thermal or solvent vapor annealing, hot solution processing, adopting a templating layer, addition of various solvents [6][7][8][9][10][11], and surface energy (SE) control [12,13] have been employed to maximize the performance of PSCs. Specifically, SE control is the most promising way to achieve suitable D/A separation for high-performance PSCs.…”