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Light-matter interaction in van der Waals heterostructures
Journal of Physics: Condensed Matter ( IF 2.7 ) Pub Date : 2020-05-19 , DOI: 10.1088/1361-648x/ab8661
Thorsten Deilmann 1 , Michael Rohlfing , Ursula Wurstbauer
Affiliation  

Even if individual two-dimensional materials own various interesting and unexpected properties, the stacking of such layers leads to van der Waals solids which unite the characteristics of two dimensions with novel features originating from the interlayer interactions. In this topical review, we cover fabrication and characterization of van der Waals heterosructures with a focus on heterobilayers made of monolayers of semiconducting transition metal dichalcogenides. Experimental and theoretical techniques to investigate those heterobilayers are introduced. Most recent findings focusing on different transition metal dichalcogenides heterostructures are presented and possible optical transitions between different valleys, appearance of moiré patterns and signatures of moiré excitons are discussed. The fascinating and fast growing research on van der Waals hetero-bilayers provide promising insights required for their application as emerging quantum-nano materials.

中文翻译:

范德华异质结构中的光物质相互作用

即使单个二维材料具有各种有趣和意想不到的特性,这些层的堆叠也会导致范德瓦尔斯固体,它将二维的特征与源自层间相互作用的新特征结合起来。在这篇专题评论中,我们涵盖了范德华异质结构的制造和表征,重点是由半导体过渡金属二硫属化物单层制成的异质双层。介绍了研究这些异质双层的实验和理论技术。介绍了针对不同过渡金属二硫属化物异质结构的最新发现,并讨论了不同谷之间可能的光学跃迁、莫尔图案的出现和莫尔激子的特征。
更新日期:2020-05-19
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