Mechanical properties of suspended few layers graphene sheets
Résumé
In this paper, we present first a fabrication process of suspended graphene stripes. This process is done on two types of graphene sheets. One is a reduced graphene oxide and the second is a few layer graphene grown by CVD. In the second part, we introduce a new method to derive the value of the local Young’s modulus of ultrathin films using atomic force microscopy for experimental measurements and a continuum mechanics model for analytical fitting. Measurements are performed on few nanometers thick suspended graphene sheets grown by CVD.