Giant energy harvesting potential in(100)-oriented 0.68PbMg_(1/3)Nb_(2/3)O_(3)-0.32PbTiO_(3)with Pb(Zr_(0.3)Ti_(0.7))O_(3)/PbO_(x)buffer layer and(001)-oriented 0.67PbMg_(1/3)Nb_(2/3)O_(3)-0.33PbTiO_(3)thin films

摘要

This work emphasis on the competence of(100)-oriented PMN–PT buffer layered(0.68PbMg_(1/3)Nb_(2/3)O_(3)–0.32PbTiO_(3)with Pb(Zr_(0.3)Ti_(0.7))O_(3)/PbO_(x)buffer layer)and(001)-oriented PMN–PT(0.67PbMg_(1/3)Nb_(2/3)O_(3)–0.33PbTiO_(3))for low grade thermal energy harvesting using Olsen cycle.Our analysis(based on well-reported experiments in literature)reveals that these films show colossal energy harnessing possibility.Both the films are found to have maximum harnessable energy densities(PMN–PT buffer layered:8 MJ/m^(3);PMN–PT:6.5 MJ/m^(3))in identical ambient conditions of 30–150℃and 0–600 kV/cm.This energy harnessing plausibility is found to be nearly five times higher than the previously reported values to date.