26 citations · 36 across the 11 of their papers we have counts for
12 papers
Co--dsorption of terrylene and tetrapentacontane on hexagonal boron nitride - towards a two-dimensional Shpolskii matrix
Rong Sun, Tolibjon Abdurakhmonov, Jan-Niklas Heidkamp +7
Organic molecular emitters are promising building blocks for quantum technologies, but their use at two-dimensional interfaces is limited by diffusion, aggregation, and photobleach…
Mismatch between Raman shear modes and ferroelectric polarization in 3R-MoS
Johannes Schwandt-Krause, Jan-Niklas Heidkamp, Mohammed El Amine Miloudi +7
Sliding ferroelectricity in parallel-stacked two-dimensional van der Waals materials enables a broad range of novel device concepts, but exploiting it requires reliable, non-destru…
Emergence of Propagating Exciton-Polaritons in Hybrid Waveguide-van der Waals Heterostructures
Alina Schubert, Karoline Becker, Andreas Thies +7
Integrating few-layer materials into photonic circuits is a promising concept for novel on-chip photonic applications. We incorporate transition metal dichalcogenides (TMDs) with f…
Unlocking klockmannite: formation of colloidal quasi-2D CuSe nanocrystals and photo-physical properties arising from crystal anisotropy
Urvi Parekh, Nadiia Didukh, Samira Dabelstein +8
Copper selenide is an exceptional quasi-layered monolithic material that exhibits both semiconducting and metallic properties in adjacent visible and near-infrared (NIR) spectral r…
Investigating the Ferroelectric Potential Landscape of 3R-MoS through Optical Measurements
Jan-Niklas Heidkamp, Johannes Schwandt-Krause, Swarup Deb +4
In recent years, sliding ferroelectricity has emerged as a topic of significant interest due to its possible application in non-volatile, reconfigurable storage devices. This pheno…
Enhancement of the WS A Raman Mode in MoS/WS Heterostructures
Annika Bergmann-Iwe, Tomasz Woźniak, Mustafa Hemaid +9
When combined into van der Waals heterostructures, transition metal dichalcogenide monolayers enable the exploration of novel physics beyond their unique individual properties. How…
Ferroelectric Control of Interlayer Excitons in 3R-MoS / MoSe Heterostructures
Johannes Schwandt-Krause, Mohammed El Amine Miloudi, Elena Blundo +9
We investigate the interaction between interlayer excitons and ferroelectric domains in hBN-encapsulated 3R-MoS/MoSe heterostructures, combining photoluminescence experimen…
Growth of few-layer molecular crystals of PTCDI on hexagonal boron nitride by microspacing air-gap sublimation
Nils LeCoutre, Tolibjon Abdurakhmonov, Paul Weinbrenner +6
Extended two-dimensional (2D) crystals of dye molecules adsorbed on 2D material substrates like boron nitride have recently become a subject of intense study, with potential applic…
Long-lived Photoluminescence of Photostable One-dimensional Picoperovskites
Maximilian Tomoscheit, Julian Schröer, Jaskaran Singh Virdee +4
We study one-dimensional metal halide perovskite crystals encapsulated in single-wall nanotubes, so-called picoperovskites, using optical spectroscopy. Polarized micro-photolumines…
Excitonic signatures of ferroelectric order in parallel-stacked MoS
Swarup Deb, Johannes Krause, Paulo E. Faria Junior +6
Interfacial ferroelectricity, prevalent in various parallel-stacked layered materials, allows switching of out-of-plane ferroelectric order by in-plane sliding of adjacent layers.…
Effect of spin-dependent tunneling in a MoSe/CrGeTe van der Waals heterostructure on exciton and trion emission
Annika Bergmann, Swarup Deb, Klaus Zollner +7
We study van der Waals heterostructures consisting of monolayer MoSe and few-layer CrGeTe fully encapsulated in hexagonal Boron Nitride using low-temperature photol…
Rapid spin depolarization in the layered 2D Ruddlesden Popper perovskite (BA)(MA)PbI
Michael Kempf, Philipp Moser, Maximilian Tomoscheit +8
We report temperature-dependent spectroscopy on the layered (n=4) two-dimensional (2D) Ruddlesden-Popper perovskite (BA)(MA)PbI. Helicity-resolved steady-state photoluminescence (P…