Abstract
Here, we report the synthesis of pure and Fe-doped Bi
3
NbO
7
(BNO) using a wet-chemical route to exploit their energy storage and fast switching capability. The structural profile confirms the cubic fluorite phase for pure BNO which transforms to cubic pyrochlore phase with almost double lattice parameter when Fe contents are increased to 0.66 in Bi
3-x
Fe
x
NbO
7
. The introduction of Fe in BNO gives rise to a variety of morphology with a considerable variation in grain size. The cylindrical particles with an average diameter of 200 nm and vast variation in length are seen for BNO which transmute to highly dense grains of random shape when Fe is incorporated. Increasing Fe contents transformed the shape of particles in spherical and flower-like morphology. The ferroelectric investigations unveil the increasing energy storage capacity of BNO when Fe is introduced into it. The detection and measurement of leakage current are carried out from IV-measurement which led to determine the electrical conductivity. The measurement of switching charge density divulges the suitability of these compositions for fast switching device applications.