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Moiré Intralayer Excitons in a MoSe/MoS Heterostructure
Nan Zhang, Alessandro Surrente, Michal Baranowski +4
Spatially periodic structures with a long range period, referred to as moiré pattern, can be obtained in van der Waals bilayers in the presence of a small stacking angle or of latt…
Towards Air Stability of Ultra-Thin GaSe Devices: Avoiding Environmental and Laser-Induced Degradation by Encapsulation
Qinghua Zhao, Riccardo Frisenda, Patricia Gant +7
Gallium selenide (GaSe) is a novel two-dimensional material, which belongs to the layered III-VIA semiconductors family and attracted interest recently as it displays single-photon…
Optical contrast and refractive index of natural van der Waals heterostructure nanosheets of franckeite
Patricia Gant, Foad Ghasemi, David Maeso +7
We study mechanically exfoliated nanosheets of franckeite by quantitative optical microscopy. The analysis of transmission mode and epi-illumination mode optical microscopy images…
Thickness-Dependent Differential Reflectance Spectra of Monolayer and Few-Layer MoS2, MoSe2, WS2 and WSe2
Yue Niu, Sergio Gonzalez-Abad, Riccardo Frisenda +12
The research field of two dimensional (2D) materials strongly relies on optical microscopy characterization tools to identify atomically thin materials and to determine their numbe…
Elucidating the Methylammonium (MA) Conformation in MAPbBr3 Perovskite with Application in Solar Cells
Carlos A. López, María Victoria Martínez-Huerta, María Consuelo Alvarez-Galván +6
Hybrid organic-inorganic perovskites, MAPbX3 (X= halogen), containing methylammonium (MA: CH3-NH3+) in the large voids conformed by the PbX6 octahedral network, are the active abso…