Electrostatic method to estimate the mechanical properties of suspended membranes applied to nickel-coated graphene oxide | Zendy

Nawres Sridi | Zendy; Bérengère Lebental | Zendy; Joël Azevedo | Zendy; JeanChristophe P. Gabriel | Zendy; Anne Ghis | Zendy

Open Access

Electrostatic method to estimate the mechanical properties of suspended membranes applied to nickel-coated graphene oxide

Author(s) -

Nawres Sridi,

Bérengère Lebental,

Joël Azevedo,

JeanChristophe P. Gabriel,

Anne Ghis

Publication year - 2013

Publication title -

applied physics letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.182

H-Index - 442

eISSN - 1077-3118

pISSN - 0003-6951

DOI - 10.1063/1.4817301

Subject(s) - graphene , materials science , flexural rigidity , membrane , modulus , deflection (physics) , oxide , composite material , rigidity (electromagnetism) , young's modulus , electrostatics , bending , electrostatic force microscope , elastic modulus , nanotechnology , atomic force microscopy , optics , metallurgy , chemistry , biochemistry , physics

We propose a method to estimate the bending rigidity and Young's modulus of thin conducting suspended membranes based on measuring the deflection of the membranes submitted to an electrostatic force. Our electrostatic method appears easier to implement and more reliable than AFM-based localized force-displacement measurements to estimate the bending rigidity and Young's modulus of slightly inhomogeneous materials. We apply the method on suspended graphene oxide (GO) sheets coated with a 5 nm thick Ni layer, providing a demonstration of electrostatic actuation for GO sheets. For a 7.7 nm thick membrane, a Young modulus of 360 GPa is found

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