Intrinsic electrocaloric effects in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymers: Roles of order of phase transition and stresses

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	Intrinsic electrocaloric effects in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymers: Roles of order of phase transition and stresses
	B. Li; W. J. Ren; X. W. Wang; H. Meng; X. G. Liu; Z. J. Wang; Z. D. Zhang
	2010
发表期刊	Applied Physics Letters
ISSN	0003-6951
卷号	96 期号:10
摘要	The electrocaloric effects accompanied with the ferroelectric to paraelectric phase transitions in poly(vinylidene fluoride-trifluoroethylene) are investigated within the Landau-Devonshire theory. Just changing the nature of the phase transition from the first-order to the second-order reduces the isothermal entropy change, adiabatic temperature change and refrigerant capacity. The isothermal entropy change in the second-order transition is about one half of that in the first-order one, which is confirmed by experiments and is also consistent with the magnetocaloric counterpart. Converting to be film also leads to the reduction in electrocaloric effects, generally ascribed to the decrease of pyroelectric coefficients. (C) 2010 American Institute of Physics. [doi: 10.1063/1.3353989]
部门归属	[li, b.] chinese acad sci, shenyang natl lab mat sci, inst met res, shenyang 110016, peoples r china. chinese acad sci, int ctr mat phys, shenyang 110016, peoples r china.;li, b (reprint author), chinese acad sci, shenyang natl lab mat sci, inst met res, 72 wenhua rd, shenyang 110016, peoples r china;libing@imr.ac.cn
关键词	Fluoride
URL	查看原文
WOS记录号	WOS:000275588000060
引用统计	被引频次：46[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/31195
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	B. Li,W. J. Ren,X. W. Wang,et al. Intrinsic electrocaloric effects in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymers: Roles of order of phase transition and stresses[J]. Applied Physics Letters,2010,96(10).
APA	B. Li.,W. J. Ren.,X. W. Wang.,H. Meng.,X. G. Liu.,...&Z. D. Zhang.(2010).Intrinsic electrocaloric effects in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymers: Roles of order of phase transition and stresses.Applied Physics Letters,96(10).
MLA	B. Li,et al."Intrinsic electrocaloric effects in ferroelectric poly(vinylidene fluoride-trifluoroethylene) copolymers: Roles of order of phase transition and stresses".Applied Physics Letters 96.10(2010).