636 citations · 2.6k across the 31 of their papers we have counts for
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Alloy engineering of excitonic properties in TMD monolayers
Eirini Katsipoulaki, Adlen Smiri, Panagiotis Spiliotakis +12
We investigate monolayer MoSSe alloys across the full composition range using optical spectroscopy. We demonstrate continuous tuning of the optical gap over $\sim…
Biaxial strain tuning of exciton energy and polarization in monolayer WS2
G. Kourmoulakis, A. Michail, I. Paradisanos +8
We perform micro-photoluminescence and Raman experiments to examine the impact of biaxial tensile strain on the optical properties of WS2 monolayers. A strong shift on the order of…
Electron density control in tungsten diselenide monolayers via photochlorination
E. Katsipoulaki, G. Vailakis, I. Demeridou +8
Modulation of the Fermi level using an ultraviolet (UV)-assisted photochemical method is demonstrated in tungsten diselenide monolayers. Systematic shifts and relative intensities…
Nonlinear optical imaging of in-plane anisotropy in two-dimensional SnS
G. M. Maragkakis, S. Psilodimitrakopoulos, L. Mouchliadis +4
Two-dimensional (2D) tin(II) sulfide (SnS) crystals belong to a class of orthorhombic semiconducting materials that are lately attracting significant interest, given their remarkab…
Optical versus electron diffraction imaging of Twist-angle in 2D transition metal dichalcogenide bilayer superlattices
S. Psilodimitrakopoulos, A. Orekhov, L. Mouchliadis +7
Atomically thin two-dimensional (2D) materials can be vertically stacked with van der Waals bonds, which enable interlayer coupling. In the particular case of transition metal dich…
Prominent room temperature valley polarization in WS2/graphene heterostructures grown by chemical vapor deposition
Ioannis Paradisanos, Kathleen M. McCreary, Davoud Adinehloo +8
We examine different cases of heterostructures consisting of WS2 monolayers grown by chemical vapor deposition (CVD) as the optically active material. We show that the degree of va…