Optical characterization in Pb(Zr_1−xTi_x)_1−yNb_yO₃ ferroelectric ceramic system

摘要

In this work, visible photoluminescence was observed at room temperature in a sintered Pb(Zr_1-xTi_x)_1-y Nb_yO₃mathrm{Pb}(mathrm{Zr}_{1-x}mathrm{Ti}_{x})_{1-y} mathrm{Nb}_{y}mathrm{O}_{3} perovskite-type structure system, doped with Nb using the next excitation bands 325, 373 and 457 nm. The intensity and energy of such emissions have been studied by changing the Nb concentration (01−x Ti _x )O₃ using density functional theory (DFT).