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Raman spectroscopy at the edges of multilayer graphene
Q. -Q. Li, X. Zhang, W. -P. Han +4
Edges naturally exist in a single-layer graphene sample. Similarly, individual graphene layers in a multilayer graphene sample contribute their own edges. We study the Raman spectr…
The Interlayer Shear Modes in Twisted Multi-layer Graphenes: Interlayer coupling, Davydov Splitting and Intensity Resonance
Jiang-Bin Wu, Xin Zhang, Mari Ijas +6
Graphene and other two-dimensional crystals can be combined to form various hybrids and heterostructures, creating materials on demand, in which the interlayer coupling at the inte…
Strong Photoluminescence Enhancement of MoS2 through Defect Engineering and Oxygen Bonding
Haiyan Nan, Zilu Wang, Wenhui Wang +9
We report on a strong photoluminescence (PL) enhancement of monolayer MoS2 through defect engineering and oxygen bonding. Micro- PL and Raman images clearly reveal that the PL enha…
The ultra-low-frequency shear modes of 2-4 layer graphenes observed in their scroll structures at edges
Ping-Heng Tan, Jiang-Bin Wu, Wen-Peng Han +4
The in-plane shear modes between neighbor-layers of 2-4 layer graphenes (LGs) and the corresponding graphene scrolls rolled up by 2-4LGs were investigated by Raman scattering. In c…