598 citations · 5.4k across the 100 of their papers we have counts for
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Observation of ultrafast interfacial Meitner-Auger energy transfer in a van der Waals heterostructure
Shuo Dong, Samuel Beaulieu, Malte Selig +23
Atomically thin layered van der Waals heterostructures feature exotic and emergent optoelectronic properties. With growing interest in these novel quantum materials, the microscopi…
Direct measurement of key exciton properties: energy, dynamics and spatial distribution of the wave function
Shuo Dong, Michele Puppin, Tommaso Pincelli +15
Excitons, Coulomb-bound electron-hole pairs, are the fundamental excitations governing the optoelectronic properties of semiconductors. While optical signatures of excitons have be…
The ultrafast onset of exciton formation in 2D semiconductors
Chiara Trovatello, Florian Katsch, Nicholas J. Borys +11
The equilibrium and non-equilibrium optical properties of single-layer transition metal dichalcogenides (TMDs) are determined by strongly bound excitons. Exciton relaxation dynamic…
Optical fingerprint of non-covalently functionalized transition metal dichalcogenides
Maja Feierabend, Ermin Malic, Andreas Knorr +1
Atomically thin transition metal dichalcogenides (TMDs) hold promising potential for applications in optoelectronics. Due to their direct band gap and the extraordinarily strong Co…
Dark excitons in transition metal dichalcogenides
Ermin Malic, Malte Selig, Maja Feierabend +5
Monolayer transition metal dichalcogenides (TMDs) exhibit a remarkably strong Coulomb interaction that manifests in tightly bound excitons. Due to the complex electronic band struc…
Mapping of the dark exciton landscape in transition metal dichalcogenides
Gunnar Berghäuser, Philipp Steinleitner, Philipp Merkl +3
Transition metal dichalcogenides (TMDs) exhibit a remarkable exciton physics including optically accessible (bright) as well as spin- and momentum-forbidden (dark) excitonic states…
Out of the dark and into the light: towards dark-state based chemical sensors
Maja Feierabend, Gunnar Berghäuser, Andreas Knorr +1
The rapidly increasing use of sensors throughout different research disciplines and the demand for more efficient devices with less power consumption depends critically on the emer…
Optical fingerprint of dark 2p-states in transition metal dichalcogenides
Gunnar Berghäuser, Andreas Knorr, Ermin Malic
We present a microscopic study on higher excitonic states in transition metal dichalcogenides in the presence of disorder. We show that the geometric phase cancels the degeneration…
Excitonic linewidth and coherence lifetime in monolayer transition metal dichalcogenides
Malte Selig, Gunnar Berghäuser, Archana Raja +7
Atomically thin transition metal dichalcogenides (TMDs) are direct-gap semiconductors with strong light-matter and Coulomb interaction. The latter accounts for tightly bound excito…
Carrier dynamics in epitaxial graphene close to the Dirac point
Stephan Winnerl, Milan Orlita, Paulina Plochocka +10
We study the carrier dynamics in epitaxially grown graphene in the range of photon energies from 10 - 250 meV. The experiments complemented by microscopic modeling reveal that the…