Demonstration of polycrystalline thin film coatings on glass for spin Seebeck energy harvesting
Demonstration of polycrystalline thin film coatings on glass for spin Seebeck energy harvesting
复制标题
DOI：
10.1002/pssr.201600128
复制
发表时间：
2016-08
期刊：
影响因子：
--
通讯作者：
A. Caruana;M. Cropper;J. Zipfel;Zhaoxia Zhou;Geoff West;K. Morrison
中科院分区：
文献类型：
--
作者：
A. Caruana;M. Cropper;J. Zipfel;Zhaoxia Zhou;Geoff West;K. Morrison
自旋塞贝克效应是一种新发现的现象，由于可以分离电导率和热导率，因此被认为是热电技术的潜在“游戏规则改变者”。这是由于一种完全不同的器件架构，在这种架构中，热电堆可以直接沉积在感兴趣的磁性薄膜上，而不是在两个陶瓷块之间布置p型和n型柱。在这里，我们报告的自旋Seebeck效应的多晶Fe3O4：Pt双层沉积在非晶玻璃基板上的经济可行的能量收集的观点。至关重要的是，这些薄膜表现出大的矫顽场（197 Oe），并保留75%的饱和磁化强度，结合能量转换相媲美的外延生长的薄膜。这证明了这项技术在收集废热发电方面广泛应用的潜力。
The spin Seebeck effect, a newly discovered phenomena, has been suggested as a potential ‘game changer’ for thermoelectric technology due to the possibility of separating the electric and thermal conductivities. This is due to a completely different device architecture where, instead of an arrangement of p‐ and n‐type pillars between two ceramic blocks, a thermopile could be deposited directly onto a magnetic film of interest. Here we report on the spin Seebeck effect in polycrystalline Fe3O4:Pt bilayers deposited onto amorphous glass substrates with a view for economically viable energy harvesting. Crucially, these films exhibit large coercive fields (197 Oe) and retain 75% of saturation magnetisation, in conjunction with energy conversion comparable to epitaxially grown films. This demonstrates the potential of this technology for widespread application in harvesting waste heat for electricity.