Multifunctional Nd³⁺ substituted Na_0.5Bi_0.5TiO₃ as lead-free ceramics with enhanced luminescence, ferroelectric and energy harvesting properties.

ABSTRACT: Herein, we present comprehensive investigations of the optical and electrical properties of Nd³⁺ substitution in sodium bismuth titanate ceramics (NBNT) with varying Nd³⁺ concentration. The room temperature photoluminescence (PL) emission for both unpoled and poled samples is observed to be a maximum for an Nd³⁺ substitution of 1 mol%. Upon poling, the PL intensity is observed to be quenched, consistent with the obtained XRD data, indicating an electric-field induced structural ordering towards higher symmetry, confirmed with the help of structural refinement. The evaluated ferroelectric to relaxor and antiferroelectric relaxor T _(F-R) was observed clearly from the poled dielectric-loss curve for the 1 mol% of Nd³⁺ substitution.

SUBMITTER: Kandula KR 

PROVIDER: S-EPMC9080032 | biostudies-literature | 2018 Apr

REPOSITORIES: biostudies-literature