204 citations · 755 across the 9 of their papers we have counts for
9 papers
Surface-Sensitive Raman Scattering by Transferable Nanoporous Plasmonic Membranes
Roman M. Wyss, Günter Kewes, Martin Frimmer +11
Raman spectroscopy is a powerful technique to characterize materials. It probes non-destructively chemical composition, crystallinity, defects, strain and coupling phenomena. Howev…
Freestanding and permeable nanoporous gold membranes for surface-enhanced Raman scattering
Roman M. Wyss, Markus Parzefall, Cynthia M. Gruber +6
Surface-enhanced Raman spectroscopy (SERS) demands reliable, high enhancement substrates in order to be used in different fields of application. Here, we introduce freestanding por…
Electron transport through metal/MoS2 interfaces: edge- or area-dependent process?
Aron Szabo, Achint Jain, Markus Parzefall +2
In ultra-thin two-dimensional (2-D) materials, the formation of ohmic contacts with top metallic layers is a challenging task that involves different processes than in bulk-like st…
Optical antennas driven by quantum tunneling: a key issues review
Markus Parzefall, Lukas Novotny
Analogous to radio- and microwave antennas, optical nanoantennas are devices that receive and emit radiation at optical frequencies. Until recently, the realization of electrically…
Beam steering with a nonlinear optical phased array antenna
Sebastian Busschaert, Nikolaus Flöry, Sotirios Papadopoulos +3
Transition metal dichalcogenides (TMDCs) exhibit high second harmonic (SH) generation in the visible due to their non-centrosymmetric crystal structure in odd-layered form and dire…
One-dimensional edge contacts to a monolayer semiconductor
Achint Jain, Áron Szabó, Markus Parzefall +6
Integration of electrical contacts into van der Waals (vdW) heterostructures is critical for realizing electronic and optoelectronic functionalities. However, to date no scalable m…
Light from van der Waals quantum tunneling devices
Markus Parzefall, Áron Szabó, Takashi Taniguchi +3
The understanding of and control over light emission from quantum tunneling has challenged researchers for more than four decades due to the intricate interplay of electrical and o…
Minimizing Residues and Strain in 2D Materials Transferred from PDMS
Achint Jain, Palash Bharadwaj, Sebastian Heeg +4
Integrating layered two-dimensional (2D) materials into 3D heterostructures offers opportunities for novel material functionalities and applications in electronics and photonics. I…
Antenna-coupled photon emission from hexagonal boron nitride tunnel junctions
Markus Parzefall, Palash Bharadwaj, Achint Jain +3
The ultrafast conversion of electrical to optical signals at the nanoscale is of fundamental interest for data processing, telecommunication and optical interconnects. However, the…