Raman Spectroscopy of Graphene and Bilayer Under Biaxial Strain: Bubbles and Balloons

Overview

Journal Nano Lett

Publisher American Chemical Society

Specialty Biotechnology

Date 2011 Dec 14

PMID 22149458

Citations 46

Authors

Jakob Zabel

Rahul R Nair

Anna Ott

Thanasis Georgiou

Andre K Geim

Kostya S Novoselov

Cinzia Casiraghi

Affiliations

Soon will be listed here.

Abstract

We use graphene bubbles to study the Raman spectrum of graphene under biaxial (e.g., isotropic) strain. Our Gruneisen parameters are in excellent agreement with the theoretical values. Discrepancy in the previously reported values is attributed to the interaction of graphene with the substrate. Bilayer balloons (intentionally pressurized membranes) have been used to avoid the effect of the substrate and to study the dependence of strain on the interlayer interactions.

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