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arXiv · 1805.01566

Very large scale characterization of graphene mechanical devices using a colorimetry technique

Santiago Jose Cartamil-Bueno·Alba Centeno·Amaia Zurutuza·Peter Gerard Steeneken·Herre Sjoerd Jan van der Zant·Samer Houri
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Abstract

We use a scalable optical technique to characterize more than 21000 circular nanomechanical devices made out of suspended single- and double-layer graphene on cavities with different diameters ($D$) and depths ($g$). To maximize the contrast between suspended and broken membranes we used a model for selecting the optimal color filter. The method enables parallel and automatized image processing for yield statistics. We find the survival probability to be correlated to a structural mechanics scaling parameter given by $D^4/g^3$. Moreover, we extract a median adhesion energy of $Γ=$ 0.9 J/m$^2$ between the membrane and the native SiO$_2$ at the bottom of the cavities.

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Santiago Jose Cartamil-Bueno, Alba Centeno, Amaia Zurutuza, Peter Gerard Steeneken, Herre Sjoerd Jan van der Zant, Samer Houri. 2018-05-03. Very large scale characterization of graphene mechanical devices using a colorimetry technique. https://doi.org/10.1039/c7nr01766a

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