161 citations · 1.1k across the 31 of their papers we have counts for
33 papers
Ultrafast nano-imaging of dark excitons
David Schmitt, Jan Philipp Bange, Wiebke Bennecke +15
The role and impact of spatial heterogeneity in two-dimensional quantum materials represents one of the major research quests regarding the future application of these materials in…
Ultrafast dynamics of bright and dark excitons in monolayer WSe and heterobilayer WSe/MoS
Jan Philipp Bange, Paul Werner, David Schmitt +15
The energy landscape of optical excitations in mono- and few-layer transition metal dichalcogenides (TMDs) is dominated by optically bright and dark excitons. These excitons can be…
Imaging Light-Induced Migration of Dislocations in Halide Perovskites with 3D Nanoscale Strain Mapping
Kieran W. P. Orr, Jiecheng Diao, Muhammad Naufal Lintangpradipto +14
In recent years, halide perovskite materials have been used to make high performance solar cell and light-emitting devices. However, material defects still limit device performance…
Probing correlations in the exciton landscape of a moiré heterostructure
Jan Philipp Bange, David Schmitt, Wiebke Bennecke +13
Excitons are two-particle correlated bound states that are formed due to Coulomb interaction between single-particle holes and electrons. In the solid-state, cooperative interactio…
Electrochemically-gated Graphene Broadband Microwave Waveguides for Ultrasensitive Biosensing
Patrik Gubeljak, Tianhui Xu, Lorenzo Pedrazzetti +5
Identification of non-amplified DNA sequences and single-base mutations is essential for molecular biology and genetic diagnostics. This paper reports a novel sensor consisting of…
Properties of quantum emitters in different hBN sample types particularly suited for nanophotonic integration
Ambika Shorny, Hardy Schauffert, James C. Stewart +11
Single photon emitters in two-dimensional (2D) hexagonal boron nitride (hBN) are promising solid-state quantum emitters for photonic applications and quantum networks. Despite thei…
Putting high-index Cu on the map for high-yield, dry-transferred CVD graphene
Oliver J. Burton, Zachary C. M. Winter, Kenji Watanabe +4
Reliable, clean transfer and interfacing of 2D material layers is technologically as important as their growth. Bringing both together remains a challenge due to the vast, intercon…
Plasma-enhanced atomic layer deposition of AlO on graphene using monolayer hBN as interfacial layer
Barbara Canto, Martin Otto, Michael J. Powell +7
The deposition of dielectric materials on graphene is one of the bottlenecks for unlocking the potential of graphene in electronic applications. In this paper we demonstrate the pl…
GFET Lab: A Graphene Field-Effect Transistor TCAD Tool
Nathaniel J. Tye, Abdul Wadood Tadbier, Stephan Hofmann +1
Graphene field-effect transistors (GFETs) are experimental devices which are increasingly seeing commercial and research applications. Simulation and modelling forms an important s…
Tracking interfacial changes of graphene/Ge(110) during in-vacuum annealing
L. Camilli, M. Galbiati, L. Di Gaspare +9
Graphene quality indicators obtained by Raman spectroscopy have been correlated to the structural changes of the graphene/Germanium interface as a function of in-vacuum thermal ann…
Multi-dimensional microwave sensing using graphene waveguides
Patrik Gubeljak, Lorenzo Pedrazzetti, Oliver J. Burton +4
This paper presents an electrolytically gated broadband microwave sensor where atomically-thin graphene layers are integrated into coplanar waveguides and coupled with microfluidic…
Formation of moiré interlayer excitons in space and time
David Schmitt, Jan Philipp Bange, Wiebke Bennecke +11
Moiré superlattices in atomically thin van-der-Waals heterostructures hold great promise for an extended control of electronic and valleytronic lifetimes, the confinement of excito…
Bridging the Band Gap: What Device Physicists Need to Know About Machine Learning
Nathaniel Tye, Stephan Hofmann, Phillip Stanley-Marbell
This article surveys the landscape of semiconductor materials and devices research for the acceleration of machine learning (ML) algorithms. We observe a disconnect between the sem…
Active terahertz modulator and slow light metamaterial devices with hybrid graphene-superconductor photonic integrated circuits
Samane Kalhor, Stephan J. Kindness, Robert Wallis +9
Metamaterial photonic integrated circuits with arrays of hybrid graphene-superconductor coupled split-ring resonators (SRR) capable of modulating and slowing down terahertz (THz) l…
Growth and Characterisation Studies of EuO Thin Films Grown on Si/SiO and Graphene
R. O. M. Aboljadayel, A. Ionescu, O. J. Burton +3
We report the growth, structural and magnetic properties of the less studied Eu-oxide phase, EuO, thin films grown on a Si/SiO substrate and Si/SiO/graphene using m…
Determining the Proximity Effect Induced Magnetic Moment in Graphene by Polarized Neutron Reflectivity and X-ray Magnetic Circular Dichroism
R. O. M. Aboljadayel, C. J. Kinane, C. A. F. Vaz +12
We report the magnitude of the induced magnetic moment in CVD-grown epitaxial and rotated-domain graphene in proximity with a ferromagnetic Ni film, using polarized neutron reflect…
Oxidising and carburising catalyst conditioning for the controlled growth and transfer of large crystal monolayer hexagonal boron nitride
Vitaliy Babenko, Ye Fan, Vlad-Petru Veigang-Radulescu +9
Hexagonal boron nitride (h-BN) is well-established as a requisite support, encapsulant and barrier for 2D material technologies, but also recently as an active material for applica…
The bright side of defects in MoS and WS and a generalizable chemical treatment protocol for defect passivation
Hope M. Bretscher, Zhaojun Li, James Xiao +12
Structural defects are widely regarded as detrimental to the optoelectronic properties of monolayer transition metal dichalcogenides, leading to concerted efforts to eliminate defe…
Long-Range Propagation and Interference of -wave Superconducting Pairs in Graphene
D. Perconte, K. Seurre, V. Humbert +13
Recent experiments have shown that proximity with high-temperature superconductors induces unconventional superconducting correlations in graphene. Here we demonstrate that those c…
Resolving the Nucleation Stage in Atomic Layer Deposition of Hafnium Oxide on Graphene
Bernhard C. Bayer, Adrianus I. Aria, Dominik Eder +2
The integration of two-dimensional (2D) materials with functional non-2D materials such as metal oxides is of key importance for many applications, but underlying mechanisms for su…
Tunable Klein-like tunneling of high-temperature superconducting pairs into graphene
David Perconte, Fabian A. Cuellar, Constance Moreau-Luchaire +9
Superconductivity can be induced in a normal material via the leakage of superconducting pairs of charge carriers from an adjacent superconductor. This so-called proximity effect i…
High-mobility, wet-transferred graphene grown by chemical vapor deposition
D. De Fazio, D. G. Purdie, A. K. Ott +11
We report high room-temperature mobility in single layer graphene grown by Chemical Vapor Deposition (CVD) after wet transfer on SiO and hexagonal boron nitride (hBN) encapsula…
Spectrally-Resolved Photodynamics of Individual Emitters in Large-Area Monolayers of Hexagonal-Boron Nitride
Hannah L. Stern, Ruizhi Wang, Ye Fan +9
Hexagonal boron nitride (h-BN) is a 2D, wide band-gap semiconductor that has recently been shown to display bright room-temperature emission in the visible region, sparking immense…
Wide-field spectral super-resolution mapping of optically active defects in hBN
Jean Comtet, Evgenii Glushkov, Vytautas Navikas +6
Point defects can have significant impacts on the mechanical, electronic and optical properties of materials. The development of robust, multidimensional, high-throughput and large…