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Production of a Strain-Measuring Device with an Improved 3D Printer
Published on: January 30, 2020
Controlled, reversible, and nondestructive generation of uniaxial extreme strains (>10%) in graphene
H Hugo Pérez Garza1, Eric W Kievit, Grégory F Schneider
1Department of Precision and Microsystems Engineering, Research Group of Micro and Nano-Engineering, Delft University of Technology , Mekelweg 2, 2628 CD, Delft, The Netherlands.
Abstract:
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.
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