Ferroelectric and pyroelectric properties of Ce3+ modified tetragonal tungsten bronze structured lead barium niobate-55 ceramics Original Research Article

In this work, Lead Barium Niobate-55 tetragonal tungsten bronze structured ceramics modified with Ce3+ with the stoichiometric formula Pb0.55−(3y/2)CeyBa0.45Nb2O6, where y=0–10 mol% Ce3+, were fabricated through the solid state reaction method and investigated for ferroelectric and pyroelectric properties. Pb0.55−(3y/2)CeyBa0.45Nb2O6 (PBN55) exhibited tetragonal (4mm) tungsten bronze structure. The ferroelectric properties (spontaneous polarization, Ps, remanent polarization, Pr and coercive field, Ec), as a function of Ce3+ concentration, have been reported. The influence of Ce3+ on pyroelectric properties of the PBN55 system has been evaluated. The pyroelectric properties were characterized and discussed as a function of Ce3+. The 6 mol% Ce3+ modified tetragonal PBN55 composition exhibited optimum pyroelectric properties in the series which could be suitable for possible pyroelectric applications.