Colorimetry Technique for Scalable Characterization of Suspended Graphene.

Autor:	Cartamil-Bueno SJ; Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628CJ, Delft, The Netherlands., Steeneken PG; Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628CJ, Delft, The Netherlands., Centeno A; Graphenea SA , 20018 Donostia-San Sebastián, Spain., Zurutuza A; Graphenea SA , 20018 Donostia-San Sebastián, Spain., van der Zant HS; Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628CJ, Delft, The Netherlands., Houri S; Kavli Institute of Nanoscience, Delft University of Technology , Lorentzweg 1, 2628CJ, Delft, The Netherlands.
Jazyk:	angličtina
Zdroj:	Nano letters [Nano Lett] 2016 Nov 09; Vol. 16 (11), pp. 6792-6796. Date of Electronic Publication: 2016 Oct 11.
DOI:	10.1021/acs.nanolett.6b02416
Abstrakt:	Previous statistical studies on the mechanical properties of chemical-vapor-deposited (CVD) suspended graphene membranes have been performed by means of measuring individual devices or with techniques that affect the material. Here, we present a colorimetry technique as a parallel, noninvasive, and affordable way of characterizing suspended graphene devices. We exploit Newton's rings interference patterns to study the deformation of a double-layer graphene drum 13.2 μm in diameter when a pressure step is applied. By studying the time evolution of the deformation, we find that filling the drum cavity with air is 2-5 times slower than when it is purged.
Databáze:	MEDLINE
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