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考虑1-3型垂直异质铁电P(VDF-TrFE)基复合薄膜结构,利用非线性的热力学理论分析和讨论了平面外应变对复合薄膜电热性能的调控作用. 结果表明,在施加的垂直电场下,平面外应变可以有效地调控电极化、热释电系数、绝热温差等铁电、电热性能. 通过合理的调控平面外应变可以在很大的温度区域范围内获得比纯平面外延薄膜结构更高的绝热温差. 研究结果预示着垂直异质P(VDF-TrFE)基复合薄膜结构在一定的工作温度范围内具有优异的电热性能,在微电源、光通信二极管、红外传感器等微型元件方面有着广泛的应用前景.
关键词:
电热效应
平面外应变
P(VDF-TrFE)复合薄膜
绝热温差 相似文献
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The crystal structure of [Cd(BDA)(phen)2(H2O)](H2O)2 (1) (BDA=6,6′-dibromo-2,2′-dimethoxy-1,1′-binaphthylene-4,4′-disulfonate, phen=1,10-phenanthroline)consists of a cadmium center whose coordination environment can be best described as a slightly distorted octahedron defined four nitrogen atoms from two phen ligands and two oxygen atoms differently from BDA ligand and water. There are strong hydrogen-bonding interactions between water and sulfonate group of BDA ligands to construct the 3D network. CCDC: 277921. 相似文献
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The reaction of homochiral bis(2-isopropyl-5-methylcyclohexyl xanthalato) nickel(Ⅱ) with pyridine yields an chiral adduct bis(2-isopropyl-5-methylcyclohexyl xanthalato)(dipyridine) nickel(Ⅱ) (Ⅰ) in which the coordination geometry of the central Ni atom displays a slightly distorted octahedron composed of four S atoms from two xanthalato ligands and two N atoms from pyridine rings. CCDC: 252342. 相似文献
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