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Doping dependence of the Raman spectrum of defected graphene
M. Bruna, A. K. Ott, M. Ijas +3
We investigate the evolution of the Raman spectrum of defected graphene as a function of doping. Polymer electrolyte gating allows us to move the Fermi level up to 0.7eV, as monito…
Excitation Energy Dependent Raman Signatures of ABA- and ABC-stacked Few-layer Graphene
The An Nguyen, Jae-Ung Lee, Duhee Yoon +1
The dependence of the Raman spectrum on the excitation energy has been investigated for ABA-and ABC- stacked few-layer graphene in order to establish the fingerprint of the stackin…
Polarization dependence of double resonant Raman scattering band in bilayer graphene
Jae-Ung Lee, Ngor Mbaye Seck, Duhee Yoon +3
The polarization dependence of the double resonant Raman scattering (2D) band in bilayer graphene (BLG) is studied as a function of the excitation laser energy. It has been known t…
Nanopatterning graphite by ion-beam-sputtering: Effects of polycrystallinity
Sun Mi Yoon, J. -S. Kim, D. Yoon +3
Employing graphites having distinctly different mean grain sizes, we study the effects of polycrystallinity on the pattern formation by ion-beam-sputtering. The grains influence th…