Direct measurement of giant electrocaloric effect in BaTiO3 multilayer thick film structure beyond theoretical prediction

作者: Yang Bai , Guangping Zheng , Sanqiang Shi

DOI: 10.1063/1.3430045

关键词: Analytical chemistryElectric fieldLattice energyElectrocaloric effectFerroelectric ceramicsElastic energyPolarization densityDielectricMaterials scienceCondensed matter physicsPyroelectricityPhysics and Astronomy (miscellaneous)

摘要: The electrocaloric (EC) effect of BaTiO3 multilayer thick film structure was investigated by direct measurement and theoretical calculation. samples were prepared the tape-casting method, which had 180 dielectric layers with an average thickness 1.4 μm. thermodynamic calculation based on polarization-temperature curves predicted a peak heat adsorption 0.32 J/g at 80 °C under 176 kV/cm electric field. via differential scanning calorimeter showed much higher EC 0.91 same difference could result from different trends changes polarization lattice elastic energy ultrahigh

参考文章(21)
Daniel Guyomar, Gael Sebald, Benoit Guiffard, Laurence Seveyrat, Ferroelectric electrocaloric conversion in 0.75(PbMg1/3Nb2/3O3)–0.25(PbTiO3) ceramics Journal of Physics D. ,vol. 39, pp. 4491- 4496 ,(2006) , 10.1088/0022-3727/39/20/029
Gael Sebald, Laurence Seveyrat, Daniel Guyomar, Laurent Lebrun, Benoit Guiffard, Sebastien Pruvost, Electrocaloric and pyroelectric properties of 0.75Pb(Mg1∕3Nb2∕3)O3–0.25PbTiO3 single crystals Journal of Applied Physics. ,vol. 100, pp. 124112- ,(2006) , 10.1063/1.2407271
Gaël Sebald, Sébastien Pruvost, Laurence Seveyrat, Laurent Lebrun, Daniel Guyomar, Benoît Guiffard, Electrocaloric properties of high dielectric constant ferroelectric ceramics Journal of The European Ceramic Society. ,vol. 27, pp. 4021- 4024 ,(2007) , 10.1016/J.JEURCERAMSOC.2007.02.088
A. S. Mischenko, Giant Electrocaloric Effect in Thin-Film PbZr0.95Ti0.05O3 Science. ,vol. 311, pp. 1270- 1271 ,(2006) , 10.1126/SCIENCE.1123811
Bret Neese, S. G. Lu, Baojin Chu, Q. M. Zhang, Electrocaloric effect of the relaxor ferroelectric poly(vinylidene fluoride-trifluoroethylene-chlorofluoroethylene) terpolymer Applied Physics Letters. ,vol. 94, pp. 042910- ,(2009) , 10.1063/1.3077189
G. Akcay, S. P. Alpay, G. A. Rossetti, J. F. Scott, Influence of mechanical boundary conditions on the electrocaloric properties of ferroelectric thin films Journal of Applied Physics. ,vol. 103, pp. 024104- ,(2008) , 10.1063/1.2831222
D.Q Xiao, Y.C Wang, R.L Zhang, S.Q Peng, J.G Zhu, B Yang, Electrocaloric properties of (1 − x)Pb(Mg1/3Nb2/3)O3–xPbTiO3 ferroelectric ceramics near room temperature Materials Chemistry and Physics. ,vol. 57, pp. 182- 185 ,(1998) , 10.1016/S0254-0584(98)00204-1
G. Akcay, S. P. Alpay, J. V. Mantese, G. A. Rossetti, Magnitude of the intrinsic electrocaloric effect in ferroelectric perovskite thin films at high electric fields Applied Physics Letters. ,vol. 90, pp. 252909- ,(2007) , 10.1063/1.2750546
P. D. Thacher, Electrocaloric Effects in Some Ferroelectric and Antiferroelectric Pb(Zr, Ti)O3 Compounds Journal of Applied Physics. ,vol. 39, pp. 1996- 2002 ,(1968) , 10.1063/1.1656478