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Giant Quasiparticle Bandgap Modulation in Graphene Nanoribbons Supported on Weakly Interacting Surfaces
Xueping Jiang, Neerav Kharche, Paul Kohl +5
In general, there are two major factors affecting bandgaps in nanostructures: (i) the enhanced electron-electron interactions due to confinement and (ii) the modified self-energy o…
Blue shifting of the A exciton peak in folded monolayer 1H-MoS2
Frank J. Crowne, Matin Amani, A. Glen Birdwell +7
The large family of layered transition-metal dichalcogenides is widely believed to constitute a second family of two-dimensional (2D) semiconducting materials that can be used to c…
Second harmonic microscopy of monolayer MoS2
Nardeep Kumar, Sina Najmaei, Qiannan Cui +4
We show that the lack of inversion symmetry in monolayer MoS2 allows strong optical second harmonic generation. Second harmonic of an 810-nm pulse is generated in a mechanically ex…
Vapor Phase Growth and Grain Boundary Structure of Molybdenum Disulfide Atomic Layers
Sina Najmaei, Zheng Liu, Wu Zhou +7
Single layered molybdenum disulfide with a direct bandgap is a promising two-dimensional material that goes beyond graphene for next generation nanoelectronics. Here, we report the…