529 citations · 1.8k across the 30 of their papers we have counts for
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Optical absorption in hexagonal-diamond Si and Ge nanowires: insights from STEM-EELS experiments and ab initio theory
Luiz H. G. Tizei, Michele Re Fiorentin, Thomas Dursap +6
Hexagonal-diamond (2H) group IV nanowires are key for advancing group IV-based lasers, quantum electronics, and photonics. Understanding their dielectric response is crucial for pe…
Excitonic Absorption Signatures of Twisted Bilayer WSe by Electron Energy-Loss Spectroscopy
Steffi Y. Woo, Alberto Zobelli, Robert Schneider +7
Moiré twist angle underpins the interlayer interaction of excitons in twisted van der Waals hetero- and homo-structures. The influence of twist angle on the excitonic absorption of…
A monolayer transition metal dichalcogenide as a topological excitonic insulator
Daniele Varsano, Maurizia Palummo, Elisa Molinari +1
Monolayer transition metal dichalcogenides in the T' phase promise to realize the quantum spin Hall (QSH) effect at room temperature, because they exhibit a prominent spin-orbit ga…
Temperature dependent excitonic effects in the optical properties of single-layer MoS
Alejandro Molina-Sánchez, Maurizia Palummo, Andrea Marini +1
Temperature influences the performance of two-dimensional materials in optoelectronic devices. Indeed, the optical characterization of these materials is usually realized at room t…
Semiconducting Monolayer Materials as a Tunable Platform for Excitonic Solar Cells
Marco Bernardi, Maurizia Palummo, Jeffrey C. Grossman
The recent advent of two-dimensional monolayer materials with tunable optoelectronic properties and high carrier mobility offers renewed opportunities for efficient, ultra-thin exc…