High pyroelectric power generation of 0.7Pb(Mg1/3Nb2/3)O3-0.3PbTiO3 single crystal
作者： Young Joon Ko , Yong Keun Park , Byung Kil Yun , Minbaek Lee , Jong Hoon Jung
DOI: 10.1016/J.CAP.2014.08.017
关键词: Pyroelectric crystal 、 Generator (circuit theory) 、 Single crystal 、 Materials science 、 Electricity generation 、 Pyroelectricity 、 Thermal fluctuations 、 Optoelectronics 、 Voltage 、 Temperature cycling
摘要: Abstract We report the pyroelectric power generation of a relaxor ferroelectric 0.7Pb(Mg1/3Nb2/3)O3–0.3PbTiO3 (PMN–PT) single crystal. For temperature variation rate 0.5 K/s, PMN–PT generated closed-circuit current 10 nA and an open-circuit voltage 1.1 V at room temperature. The crystal were proportional to sharply enhanced near structural phase-transition Additionally, generator produced stable for excessive thermal cycling was highly sensitive random fluctuations. Our results indicate potential importance high-power applications.
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