Angle resolved photoelectron spectroscopy (ARPES) is extensively used tocharacterize the dependence of the electronic structure of graphene on Ir(111)on the preparation process. ARPES findings reveal that temperature programmedgrowth alone or in combination with chemical vapor deposition leads to graphene...
"Epitaxial graphene and exfoliated graphene are very distinct," said Li. Much of the synchrotron experimental work on epitaxial graphene has employed angle-resolved photoemission spectroscopy (ARPES). "In our work, we investigated exfoliated graphene by employing infrared spectromicroscopy." He said infr...
High-resolution ARPES measurements are very useful for verifying the low-energy valence bands crossing the Fermi level along KΓ and MΓ and the rigid σ bands initiated from the Γ point. On the other hand, most of Si-substitution cases result in the semiconducting behavior with the finite ...
For the clean metal surface, Cu(111), the well-known L-gap surface state around the Γ-point is found in angle-resolved photoemission spectroscopy (ARPES) experiments35. Using the graphene’s lattice constant, the calculated binding energy of this state at the Γ-point is −909 meV. [Not...
Moreover, ARPES and core-level photoemission results show that intercalation of Cu leads to significant electron injection into the nanoribbons, which causes a pronounced downshift of the valence and conduction bands of the GNR with respect to the Fermi energy (Delta E similar to 0.5 eV). As ...
ARPESp-n junctionIntercalationWe propose a method to fabricate the chemical p-n junction in wafer-scale epitaxial graphene. In the case of Au intercalation in between graphene and SiC(0001), there exist two structurally distinct phases that result in p-type and n-type doping in the graphene ...
Bulk BP is having a very narrow band gap confirmed as 0.2 to 0.3 eV by angle resolved photoemission spectroscopy (ARPES) [24]. It is having a tunable band gap of ~0.3 eV in bulk to ~1.5 eV in monolayer phosphorene and this makes it a promising candidate for future biomedical...
(\sim\)1 nm) GQD of a nearly circular shape. The large number of contained carbon atoms leads to a rich electronic structure consisting of numerous energy levels, with strong photoemission intensity modulation, mainly maximized near the graphene band, as presented in Fig.5b for ARPES simulation...
The high-resolution angle-resolved photoemission spectroscopy (ARPES) can be used to directly examine the energy dispersion. The measured results have confirmed feature-rich band structures of the carbon-related sp2-bonding systems. Graphene nanoribbons are identified to possess 1D parabolic energy ...
The Raman spectrum (B, C), the LEEM image (D), and the ARPES image (E) confirms D-peak free, high crystal quality, double-layered large (>50 µm) grain, and non-Bernal stacked linear dispersion with not unintentional doping, respectively. (A) Device cross-section, (B) Raman spectro...