arXivDaily arXiv每日学术速递 周一至周五更新
北美退伍军人节(Veterans Day),12 日无更新
arXiv 2010.04783cond-mat.mtrl-sci
收藏

局部热处理使范德华异质结界面平坦化

Flattening van der Waals heterostructure interfaces by local thermal treatment

Adina Luican-Mayer, Justin Boddison-Chouinard, Samantha Scarfe, K. Watanabe, T Taniguchi

摘要:

基于堆叠的2D材料的定制异质结构的制造提供了可控地调谐电子和光学性质的有效方法。为此,优化制造这些异质结构的制造技术势在必行。在2D材料的逐层组装中的常见挑战是在原子级薄的界面处形成气泡。我们提出了一种技术,用于解决这个问题,通过消除在异质结界面处形成的气泡,在一个自定义的区域,使用由激光器产生的热量,配备光栅扫描功能。我们证明,在石墨烯-ReS 2界面处形成的气泡的密度可以使用该方法可控地降低。我们讨论了通过考虑两个原子级薄的二维材料之间的界面热导率和粘附能的相互作用的平坦化机制的理解。

英文摘要:

Fabrication of custom-built heterostructures based on stacked 2D materials provides an effective method to controllably tune electronic and optical properties. To that end, optimizing fabrication techniques for building these heterostructures is imperative. A common challenge in layer-by-layer assembly of 2D materials is the formation of bubbles at the atomically thin interfaces. We propose a technique for addressing this issue by removing the bubbles formed at the heterostructure interface in a custom-defined area using the heat generated by a laser, equipped with raster scanning capabilities. We demonstrate that the density of bubbles formed at graphene-ReS2 interfaces can be controllably reduced using this method. We discuss an understanding of the flattening mechanism by considering the interplay of interface thermal conductivities and adhesion energies between two atomically thin 2D materials.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑