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cond-mat.mes-hall2020★ 10 cited
Reversible Sulfuric Acid Doping of Graphene Probed by in-situ Multi-Wavelength Raman Spectroscopy
Gwanghyen Ahn, Sunmin Ryu
Since lattice strain and charge density affect various material properties of graphene, a reliable and efficient method is required for quantification of the two variables. While R…
cond-mat.mes-hall2014★ 109 cited
Two-Dimensional Water Diffusion at a Graphene-Silica Interface
DaeEung Lee, Gwanghyun Ahn, Sunmin Ryu
Because of the dominant role of the surface of molecules and their individuality, molecules behave dis-tinctively in a confined space, which has far-reaching implications in many p…
cond-mat.mes-hall2013★ 61 cited
Optical Probing of Electronic Interaction between Graphene and Hexagonal Boron Nitride
Gwanghyun Ahn, Hye Ri Kim, Taeg Yeoung Ko +5
Even weak van der Waals (vdW) adhesion between two-dimensional solids may perturb their various materials properties owing to their low dimensionality. Although the electronic stru…