Electrocaloric Effect in 0.85PMN-0.15PT Thin Films Deposited by Pulsed Laser Deposition

A giant electrocaloric effect of a Pb0.97La0.02(Zr0.75Sn0.18Ti0.07)O3 antiferroelectric thick film at room temperature

“…6 shows the materials efficiency (COP) and electrocaloric coefficient (ξ max ) of the PLZST AFE thick film at 900 kV/cm and at different temperatures. Following Defay's study, [24] the refrigeration efficiency is defined as: [7] P(VDF-TrFE), P(VDF-TrFE-CFE), [23] Pb 0.80 Ba 0.20 ZrO 3 , [13] 0.85PMN-0.15PT films, [ 25 ] and Pb 0.99 Nb 0.02 (Zr 0.75 Sn 0.20 Ti 0.05 ) 0.98 O 3 , [11] Pb(Zr 0.455 Sn 0.455 Ti 0.09 )O 3 , [16] BaZr 0.2 Ti 0.8 O 3 , [4] PZT-5, [ 26 ] 0.94Na 0.5 Bi 0.5 TiO 3 -0.06KNbO 3 , [ 27 ] Pb(Mg 0.067 Nb 0.133 Zr 0.8 )O 3 ceramics, [ 28 ] and 0.45Ba 0.2 Ti 0.8 O 3 -0.55Ba 0.7 Ca 0.3 TiO 3 single crystal. [ 29 ] Refrigerant capacity (RC) is also an important parameter, which is a measurement of how much heat can be transferred between the cold and hot sinks in an ideal refrigerant cycle.…”