1.3k citations · 4k across the 7 of their papers we have counts for
7 papers
Phonon and structural changes in deformed Bernal stacked bilayer graphene
Otakar Frank, Milan Bousa, Ibtsam Riaz +7
We present the first Raman spectroscopic study of Bernal bilayer graphene flakes under uniaxial tension. Apart from a purely mechanical behavior in flake regions where both layers…
Raman 2D-Band Splitting in Graphene: Theory and Experiment
Otakar Frank, Marcel Mohr, Janina Maultzsch +9
We present a systematic experimental and theoretical study of the two-phonon (2D) Raman scattering in graphene under uniaxial tension. The external perturbation unveils that the 2D…
From Graphene to Carbon Fibres: Mechanical Deformation and Development of a Universal Stress Sensor
Otakar Frank, Georgia Tsoukleri, Ibtsam Riaz +6
Carbon fibres (CF) represent a significant volume fraction of modern structural airframes. Embedded into polymer matrices, they provide significant strength and stiffness gains ove…
Hunting for Monolayer Boron Nitride: Optical and Raman Signatures
R. V. Gorbachev, I. Riaz, R. R. Nair +9
We describe the identification of single- and few- layer boron nitride. Its optical contrast is much smaller than that of graphene but even monolayers are discernable by optimizing…
Interfacial Stress Transfer in a Graphene Monolayer Nanocomposite
L. Gong, I. A. Kinloch, R. J. Young +3
Graphene is one of the stiffest known materials, with a Young's modulus of 1 TPa, making it an ideal candidate for use as a reinforcement in high-performance composites. However, b…
Compression Behavior of Single-layer Graphene
Otakar Frank, Georgia Tsoukleri, John Parthenios +5
Central to most applications involving monolayer graphene is its mechanical response under various stress states. To date most of the work reported is of theoretical nature and ref…