Abstract
Dispersion of the absolute second-order susceptibility of both MoS2 and WS2 is assessed on a wide spectral excitation range (710–1300 nm) by using second-harmonic scattering spectroscopy (SHS). SHS is an accurate ensemble measurement here applied on well-dispersed suspensions of monodisperse liquid-exfoliated nanosheets showing a high monolayer content. The as-derived, high susceptibility values shed light on the discrepancies between available literature values while evidencing resonances associated with the main excitonic transitions.
Original language | American English |
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Number of pages | 7 |
Journal | Physical Review B |
Volume | 102 |
Issue number | 23 |
DOIs | |
State | Published - 2020 |
NREL Publication Number
- NREL/JA-5900-78805
Keywords
- light scattering
- monolayer films
- nanophotonics
- optical second-harmonic generation
- spectroscopy
- transition-metal dichalcogenide