Exploiting the giant electrocaloric effect

利用巨大的电热效应

• 批准号: EP/E035043/1
• 负责人: Qi Zhang
• 金额: $ 23.71万
• 依托单位: CRANFIELD UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2007
• 资助国家: 英国
• 起止时间: 2007 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FE035043%2F1
• 关键词: Exploiting; giant; electrocaloric; effect

This project has the capacity to deliver revolutionary technology for a wide range of refrigeration and/or power generation scenarios.Our discovery paper [AS Mischenko, Q Zhang, JF Scott, RW Whatmore & ND Mathur, Science 311 (2006) 1270] marks the rebirth of a field of research but it is only a materials development and we do not yet know whether any technology will actually result.The point of this grant application is to develop materials that function well near room temperature, and demonstrate refrigeration and electricity generation in devices. Moreover, this proposal contains a strong scientific component that will reveal new information about electrocaloric materials and the way they behave.The materials development is perfectly realistic because the electrocaloric effect is expected near any ferroelectric phase transition, and there are many suitable materials such as those we name explicitly. Moreover, the strategies we propose for improving properties of interest are well established.The device fabrication, which is relatively straightforward, is necessary since our promising simulation efforts [AS Mischenko & ND Mathur, GB Patent 2420662 (2006)] are no substitute for real data. Note that there are several aspects to device optimisation, e.g. film thickness and composition.

该项目有能力为各种制冷和/或发电场景提供革命性技术。我们的发现论文 [AS Mischenko, Q Zhang, JF Scott, RW Whatmore & ND Mathur, Science 311 (2006) 1270] 标志着一个研究领域的重生，但这只是材料的开发，我们还不知道是否会真正产生任何技术。这项拨款申请的目的是开发在室温附近运行良好的材料，并演示制冷和发电在设备中。此外，该提案包含强大的科学成分，将揭示有关电热材料及其行为方式的新信息。该材料的开发是完全现实的，因为预计在任何铁电相变附近都会产生电热效应，并且有许多合适的材料，例如我们明确命名。此外，我们提出的用于改善感兴趣的特性的策略已经很成熟。相对简单的器件制造是必要的，因为我们有前途的模拟工作[AS Mischenko & ND Mathur, GB Patent 2420662 (2006)]不能替代真实的数据。请注意，设备优化有几个方面，例如薄膜厚度和成分。

项目成果

Thickness-dependent electrocaloric effect in mixed-phase Pb0.87Ba0.1 La0.02(Zr0.6Sn0.33Ti0.07)O3 thin films.

混合相 Pb0.87Ba0.1 La0.02(Zr0.6Sn0.33Ti0.07)O3 薄膜中厚度依赖性电热效应。

• DOI: http://dx.10.1098/rsta.2016.0056
• 发表时间: 2016
• 期刊: Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
• 作者: Correia TM

Development of residual stress in sol-gel derived Pb(Zr,Ti)O3 films: An experimental study

溶胶-凝胶衍生的 Pb(Zr,Ti)O3 薄膜中残余应力的发展：实验研究

• DOI: 10.1063/1.2890142
• 发表时间: 2008-04-16
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: S. Ćorković;R. Whatmore;Qi Zhang
• 通讯作者: Qi Zhang

Investigation of the electrocaloric effect in a PMN-PT relaxor thin film

PMN-PT 弛豫薄膜的电热效应研究

• 发表时间: 2009
• 期刊: Applied physics letters
• 影响因子: 4
• 作者: Tatiana Correia

High tunable dielectric response of Pb0.87Ba0.1La0.02(Zr0.6Sn0.33Ti0.07)O3 thin film

Pb0.87Ba0.1La0.02(Zr0.6Sn0.33Ti0.07)O3薄膜的高介电响应

• DOI: 10.1063/1.3466754
• 发表时间: 2010-08-31
• 期刊: Journal of Applied Physics
• 影响因子: 3.2
• 作者: T. Correia;Qi Zhang
• 通讯作者: Qi Zhang

The Impact of PZT Seed Layer on Microstructure, Dielectric and Ferroelectric Properties of 0.93PMN-0.07PT Thin Films

PZT籽晶层对0.93PMN-0.07PT薄膜微观结构、介电和铁电性能的影响

• DOI: http://dx.10.1080/00150193.2010.483397
• 发表时间: 2010
• 期刊: Ferroelectrics
• 影响因子: 0.8
• 作者: Correia T