Title :
Elastic properties of graphene grown by chemical vapor deposition
Author :
Xiao Zhang ; Chen Liang ; Zimmermann, Soren ; Krohs, Florian ; Yuelin Wang ; Tie Li
Author_Institution :
Sci. & Technol. on Microsyst. Lab., Shanghai Inst. of Microsyst. & Inf. Technol., Shanghai, China
Abstract :
We measured the elastic properties and breaking strength of free-standing chemical vapor deposition grown graphene membranes by nanoindentation with an atomic force microscope probe in scanning electric microscope. The force-displacement behavior presents to be nonlinear elastic stress-strain response. The two dimension elastic constant and fracture are extracted to be 337 N/m and 179 GPa, respectively. The corresponded effective Young´s modulus is E = 1 TPa, compared to 1 TPa for graphene produced by mechanical exfoliation of graphite and 0.25 TPa for graphene produced by chemical reduction.
Keywords :
Young´s modulus; atomic force microscopy; chemical vapour deposition; elasticity; fracture; graphene; materials preparation; nanoindentation; scanning electron microscopy; stress-strain relations; 2D elastic constant; AFM probe; C; CVD grown graphene membranes; atomic force microscopy; chemical reduction; chemical vapor deposition; effective Young´s modulus; force-displacement behavior; fracture; free standing graphene membranes; graphene breaking strength; graphene elastic properties; graphite mechanical exfoliation; nanoindentation; nonlinear elastic stress-strain response; scanning electric microscopy; Chemicals; Graphene; Microscopy; AFM indention; CVD method; graphene;
Conference_Titel :
Design, Test, Integration and Packaging of MEMS/MOEMS (DTIP), 2015 Symposium on
Conference_Location :
Montpellier
Print_ISBN :
978-1-4799-8627-9
DOI :
10.1109/DTIP.2015.7160994
