CaCu3Ti4O12 ceramics with giant permittivity prepared by reduction-reoxidation method

Research progress on quadruple perovskite oxides

“…192 These characteristics make CCTO ceramics a promising material for downsizing, light-weight nature, and energy conservation in electronic devices. 193,194 The internal barrier layer capacitance theory, 195,196 rather than an intrinsic property related to the crystal structure, is responsible for the interesting dielectric performance of CCTO. These effects occur at the grain interfaces and grain boundaries formed during crystal growth.…”