The complexity of thermoelectric materials: why we need powerful and brilliant synchrotron radiation sources?
The complexity of thermoelectric materials: why we need powerful and brilliant synchrotron radiation sources?
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热电材料的复杂性：为什么我们需要强大而明亮的同步辐射源？
DOI：
10.1016/j.mtphys.2018.09.002
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发表时间：
2018-08
影响因子：
11.5
通讯作者：
Liu W. S.
中科院分区：
文献类型：
--
作者：
Xu W.;Liu Y.;Marcelli A.;Shang P. P.;Liu W. S.
调整热通量和电流之间的传输特性可以提高热电材料的效率，这是一种复杂的系统，对能量收集和固态制冷有很大的希望。实际上，它们的原子结构、电荷分布和热力学演化同时有助于决定电荷和热量之间的能量转换效率。目前，有限的能力，同时探测原子结构，电荷分布状态，晶格或电荷动力学代表了真实的瓶颈，更好地了解这些材料中的电子和声子的传输。各种技术已经开发或正在开发中的同步辐射设施，使所有研究人员提供强大的工具来调查这些和其他类似的系统。本文综述了热电材料的主要应用，强调了它们在研究热电材料方面的优势。我们还将更新世界各地同步辐射设施的现状和机会。最后，我们将为热电材料社区提供这些非凡来源的前景。
Tuning the transport properties between heat flux and electrical current may allow increasing the efficiency of thermoelectric materials, complex systems that hold great promises for energy harvesting and solid-state refrigeration. Actually, their atomic structure, charge distribution, and thermodynamic evolutions simultaneously contribute to determining the energy conversion efficiency between charge and heat. At present, the limited capability to simultaneously probe atomic structure, charge distribution states, and lattice or charge dynamics represents the real bottleneck toward a better understanding of the transport of electrons and phonons in these materials. A variety of techniques have been developed or are under development at synchrotron radiation facilities to make available powerful tools to all researchers to investigate these and other similar systems. We review here the main applications by emphasizing their advantage to investigate thermoelectric materials. We will also update the status and the opportunities available at the synchrotron radiation facilities all around the world. Finally, we will provide perspectives of these extraordinary sources for the thermoelectric materials community.
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