2016/08/17 by Santiago J. Cartamil-Bueno, Peter G. Steeneken, Alba Centeno +3 · 1 citation
Engineering · Materials Science · Physics and Astronomy · #Carbon Nanotubes in Composites #Characterization (materials science) #Chemical vapor deposition #Colorimetry #Composite material #Deformation (meteorology) #Drum #Graphene #Graphene research and applications #Materials science #Mechanical engineering #Micrometer #Nanopore and Nanochannel Transport Studies #Nanotechnology #Optics #Optoelectronics #Physics #cond-mat.mes-hall
paper · pdf · doi:10.1021/acs.nanolett.6b02416
arxiv created 2016/08/17 · openalex publication_date 2016/10/06 · arxiv updated 2016/11/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
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.