Electrochemical Intercalation in Atomically Thin van der Waals Materials for Structural Phase Transition and Device Applications
Electrochemical Intercalation in Atomically Thin van der Waals Materials for Structural Phase Transition and Device Applications
复制标题
用于结构相变和器件应用的原子薄范德华材料的电化学插层
DOI：
10.1002/adma.202000581
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发表时间：
2020-07-28
影响因子：
29.4
通讯作者：
Xu, Cheng-Yan
中科院分区：
文献类型：
--
作者：
Li, Yang;Yan, Hang;Xu, Cheng-Yan
在货车范德华（vdWs）材料和异质结构中，由于缺乏悬挂键，夹层通过弱vdWs相互作用结合。在同质或异质界面的vdWs间隙提供了很大的自由度，以丰富的可调谐性的电子结构的外部嵌入的外来离子或原子在界面上，导致发现新的物理和功能。本文综述了近年来在原子级薄的vdWs材料中电化学嵌入异质物种的研究进展，并展望了未来的研究方向。首先，介绍了几种用于实现vdWs材料和异质结构的电化学嵌入平台。其次，总结了电化学嵌入动力学的原位表征的最先进的技术，包括光学技术，扫描探针技术，和电输运。此外，特别注意的是支付实验报告的相变和多功能应用的插层设备。最后，提出了未来的应用和挑战的嵌入在vdWs材料和异质结构，包括本征嵌入机制的固体离子导体，插入的外来物种的近场光学技术的准确识别，和超快开关的嵌入动力学的可调谐性。
In van der Waals (vdWs) materials and heterostructures, the interlayers are bonded by weak vdWs interactions due to the lack of dangling bonds. The vdWs gap at the homo- or heterointerface provides great freedom to enrich the tunability of electronic structures by external intercalation of foreign ions or atoms at the interface, leading to the discovery of new physics and functionalities. Herein, the recent progress on electrochemical intercalation of foreign species into atomically thin vdWs materials for structural phase transition and device applications is reviewed and future opportunities are discussed. First, several kinds of electrochemical intercalation platforms to achieve the intercalation in vdWs materials and heterostructures are introduced. Next, the in situ characterization of electrochemical intercalation dynamics by state-of-the-art techniques is summarized, including optical techniques, scanning probe techniques, and electrical transport. Moreover, particular attention is paid on the experimentally reported phase transition and multifunctional applications of intercalated devices. Finally, future applications and challenges of intercalation in vdWs materials and heterostructures are proposed, including the intrinsic intercalation mechanism of solid ion conductors, exact identification of intercalated foreign species by near-field optical techniques, and the tunability of intercalation kinetics for ultrafast switching.