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Dark trions govern the temperature-dependent optical absorption and emission of doped atomically thin semiconductors
Ashish Arora, Nils Kolja Wessling, Thorsten Deilmann +7
We perform absorption and photoluminescence spectroscopy of trions in hBN-encapsulated WSe, WS, MoSe, and MoS monolayers, depending on temperature. The different tr…
The effect of metallic substrates on the optical properties of monolayer MoSe
M. Grzeszczyk, M. R. Molas, K. Nogajewski +6
Atomically thin materials, like semiconducting transition metal dichalcogenides (S-TMDs), are highly sensitive to the environment. This opens up an opportunity to externally contro…
Exciton-polaritons in multilayer WSe in a planar microcavity
M. Król, K. Rechcińska, K. Nogajewski +10
Due to high binding energy and oscillator strength, excitons in thin flakes of transition metal dichalcogenides constitute a perfect foundation for realizing a strongly coupled lig…
Breathing modes in few-layer MoTe activated by h-BN encapsulation
M. Grzeszczyk, M. R. Molas, M. Bartoš +3
The encapsulation of few-layer transition metal dichalcogenides (TMDs) in hexagonal boron nitride (h-BN) is known to improve significantly their optical and electronic properties.…
Upconverted electroluminescence via Auger scattering of interlayer excitons in van der Waals heterostructures
J. Binder, J. Howarth, F. Withers +11
The intriguing physics of carrier-carrier interactions, which likewise affect the operation of light emitting devices, stimulate the research on semiconductor structures at high de…
Probing and manipulating valley coherence of dark excitons in monolayer WSe
M. R. Molas, A. O. Slobodeniuk, T. Kazimierczuk +10
Monolayers of semiconducting transition metal dichalcogenides are two-dimensional direct-gap systems which host tightly-bound excitons with an internal degree of freedom correspond…