论文标题

使用聚合物执行器在石墨烯上的应变工程皱纹

Strain-engineered wrinkles on graphene using polymeric actuators

论文作者

Giambastiani, Davide, Tommasi, Cosimo, Bianco, Federica, Fabbri, Filippo, Coletti, Camilla, Tredicucci, Alessandro, Pitanti, Alessandro, Roddaro, Stefano

论文摘要

石墨烯的电子和光学特性可以通过产生应变特征的确定性排列来精确调整。在本文中,我们报告了沉积在六边形硼氮化物上的单层石墨烯的广泛和受控的屈曲分层的形成,该石墨烯是通过对石墨烯薄片的显着挤压并由聚合物微作用剂诱导的。这种方法的灵活性提供了一种有前途的技术,可以创建任意的屈曲几何形状和皱纹阵列,也可以受到迭代折叠 - 不包裹周期的影响。这种方法的进一步开发可以通过调整其表面地形来调整其他几种其他二维材料(例如过渡金属二进制基质化)的特性铺平道路。

The electronic and optical properties of graphene can be precisely tuned by generating deterministic arrangements of strain features. In this paper, we report the formation of widespread and controlled buckling delamination of monolayer graphene deposited on hexagonal boron-nitride promoted by a significant squeezing of the graphene flake and induced by polymeric micro-actuators. The flexibility of this method offers a promising technique to create arbitrary buckling geometries and arrays of wrinkles which could also be subjected to iterative folding-unfolding cycles. Further development of this method could pave the way to tune the properties of several kinds of other two-dimensional materials, such as transition metal dichalcogenides, by tailoring their surface topography.

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