Studying 2D materials with advanced Raman spectroscopy: CARS, SRS and TERS
Raman spectroscopy has been established as a valuable tool to study and characterize two-
dimensional (2D) systems, but it exhibits two drawbacks: a relatively weak signal response …
dimensional (2D) systems, but it exhibits two drawbacks: a relatively weak signal response …
Engineering the harmonic generation in graphene
In the field of nonlinear optics, graphene has shown astounding nonlinear properties,
including the generation of harmonics across a wide frequency range. Harmonic generation …
including the generation of harmonics across a wide frequency range. Harmonic generation …
Dirac electrons in a dodecagonal graphene quasicrystal
Quantum states of quasiparticles in solids are dictated by symmetry. We have experimentally
demonstrated quantum states of Dirac electrons in a two-dimensional quasicrystal without …
demonstrated quantum states of Dirac electrons in a two-dimensional quasicrystal without …
Electronic and mechanical properties of graphene–germanium interfaces grown by chemical vapor deposition
Epitaxially oriented wafer-scale graphene grown directly on semiconducting Ge substrates
is of high interest for both fundamental science and electronic device applications. To date …
is of high interest for both fundamental science and electronic device applications. To date …
Charge inversion and topological phase transition at a twist angle induced van Hove singularity of bilayer graphene
van Hove singularities (VHS's) in the density of states play an outstanding and diverse role
for the electronic and thermodynamic properties of crystalline solids. At the critical point the …
for the electronic and thermodynamic properties of crystalline solids. At the critical point the …
Extraordinary Phonon Displacement and Giant Resonance Raman Enhancement in WSe2/WS2 Moiré Heterostructures
Twisted van der Waals heterostructures are known to induce surprisingly diverse and
intriguing phenomena, such as correlated electronic phase and unconventional optical …
intriguing phenomena, such as correlated electronic phase and unconventional optical …
Recent developments in chemical doping of graphene using experimental approaches and its applications
Graphene has been widely investigated and applied in almost all areas of science and
technology. Modulation of graphene properties is needed for its potential utilization in …
technology. Modulation of graphene properties is needed for its potential utilization in …
[HTML][HTML] Enhanced third-harmonic generation by manipulating the twist angle of bilayer graphene
Twisted bilayer graphene (tBLG) has received substantial attention in various research fields
due to its unconventional physical properties originating from Moiré superlattices. The …
due to its unconventional physical properties originating from Moiré superlattices. The …
Transport measurements in twisted bilayer graphene: Electron-phonon coupling and Landau level crossing
We investigate electronic transport in twisted bilayer graphene (tBLG) under variable
temperatures (T), carrier densities (n), and transverse magnetic fields, focusing on samples …
temperatures (T), carrier densities (n), and transverse magnetic fields, focusing on samples …
Tuning the Excitonic States in MoS2/Graphene van der Waals Heterostructures via Electrochemical Gating
The behavior of excitons in van der Waals (vdWs) heterostructures depends on electron–
electron interactions and charge transfer at the heterointerface. However, what still remains …
electron interactions and charge transfer at the heterointerface. However, what still remains …