在石墨烯中可控、可逆且无损地产生单轴极端应变（>10%）。
Controlled, reversible, and nondestructive generation of uniaxial extreme strains (>10%) in graphene.
机构信息
Department of Precision and Microsystems Engineering, Research Group of Micro and Nano-Engineering, Delft University of Technology , Mekelweg 2, 2628 CD, Delft, The Netherlands.
出版信息
Nano Lett. 2014 Jul 9;14(7):4107-13. doi: 10.1021/nl5016848. Epub 2014 Jun 10.
Theoretical calculations have predicted that extreme strains (>10%) in graphene would result in novel applications. However, up to now the highest reported strain reached ∼1.3%. Here, we demonstrate uniaxial strains >10% by pulling graphene using a tensile-MEMS. To prevent it from slipping away it was locally clamped with epoxy using a femtopipette. The results were analyzed using Raman spectroscopy and optical tracking. Furthermore, analysis proved the process to be reversible and nondestructive for the graphene.
理论计算预测，在石墨烯中施加极端应变（>10%）将带来新颖的应用。然而，迄今为止，报道的最高应变为~1.3%。在这里，我们使用拉伸式微机电系统（MEMS）来实现超过 10%的单轴应变。为了防止石墨烯滑脱，我们使用 femtopipette 用环氧树脂将其局部固定。使用拉曼光谱和光学跟踪对结果进行了分析。此外，分析证实该过程对石墨烯是可逆且无损的。
Zotero 插件