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Tailored Graphenic Structures Directly Grown on Titanium Oxide Boost the Interfacial Charge Transfer
Roberto Munoz, Carlos Sanchez-Sanchez, Pablo Merino +7
The successful application of titanium oxide-graphene hybrids in the fields of photocatalysis, photovoltaics and photodetection strongly depends on the interfacial contact between…
Symmetry breakdown in franckeite: spontaneous strain, rippling and interlayer moiré
Riccardo Frisenda, Gabriel Sanchez-Santolino, Nikos Papadopoulos +9
Franckeite is a naturally occurring layered mineral with a structure composed of alternating stacks of SnS2-like and PbS-like layers. Although this superlattice is composed of a se…
Biaxial strain tuning of interlayer excitons in bilayer MoS2
Felix Carrascoso, Der-Yuh Lin, Riccardo Frisenda +1
We show how the excitonic features of biaxial MoS2 flakes are very sensitive to biaxial strain. We find a lower bound for the gauge factors of the A exciton and B exciton of (-41 +…
Thickness determination of MoS2, MoSe2, WS2 and WSe2 on transparent stamps used for deterministic transfer of 2D materials
Najme S. Taghavi, Patricia Gant, Peng Huang +7
Here, we propose a method to determine the thickness of the most common transition metal dichalcogenides (TMDCs) placed on the surface of transparent stamps, used for the determini…
Mechanical and liquid phase exfoliation of cylindrite: a natural van der Waals superlattice with intrinsic magnetic interactions
Yue Niu, Julia Villalva, Riccardo Frisenda +6
We report the isolation of thin flakes of cylindrite, a naturally occurring van der Waals superlattice, by means of mechanical and liquid phase exfoliation. We find that this mater…
Fast Yet Quantum-Efficient Few-Layer Vertical MoS2 Photodetectors
David Maeso, Andres Castellanos-Gomez, Nicolas Agraït +1
Semiconducting 2D materials, such as molybdenum disulfide (MoS2) and other members of the transition metal dichalcogenide family, have emerged as promising materials for applicatio…
Polarization-sensitive and broadband photodetection based on a mixed-dimensionality TiS3/Si p-n junction
Yue Niu, Riccardo Frisenda, Eduardo Flores +7
The capability to detect the polarization state of light is crucial in many day-life applications and scientific disciplines. Novel anisotropic two-dimensional materials such as Ti…
Revisiting the buckling metrology method to determine the Young's modulus of 2D materials
Nestor Iguiñiz, Riccardo Frisenda, Rudolf Bratschitsch +1
Measuring the mechanical properties of two-dimensional materials is a formidable task. While regular electrical and optical probing techniques are suitable even for atomically thin…
A strain tunable single-layer MoS2 photodetector
Patricia Gant, Peng Huang, David Pérez de Lara +3
Strain engineering, which aims to tune the bandgap of a semiconductor by the application of strain, has emerged as an interesting way to control the electrical and optical properti…