1.7k citations · 7.4k across the 36 of their papers we have counts for
36 papers
Distinctive g-factor of moire-confined excitons in van der Waals heterostructures
Y. Galvão Gobato, C. Serati de Brito, Andrey Chaves +7
We investigated experimentally the valley Zeeman splitting of excitonic peaks in the photoluminescence (PL) spectra of high-quality hBN/WS2/MoSe2/hBN heterostructures at near-zero…
Excited State Spectroscopy of Boron Vacancy Defects in Hexagonal Boron Nitride using Time-Resolved Optically Detected Magnetic Resonance
Simon Baber, Ralph N. E. Malein, Prince Khatri +5
We report optically detected magnetic resonance (ODMR) measurements of an ensemble of spin-1 negatively charged boron vacancies in hexagonal boron nitride. The photoluminescence de…
Interplay between spin proximity effect and charge-dependent exciton dynamics in MoSe / CrBr van der Waals heterostructures
T. P. Lyons, D. Gillard, A. Molina-Sánchez +9
Semiconducting ferromagnet-nonmagnet interfaces in van der Waals heterostructures present a unique opportunity to investigate magnetic proximity interactions dependent upon a multi…
Scalable heterostructures produced through mechanical abrasion of van der Waals powders
Darren Nutting, Jorlandio F. Felix, Shin Dong-Wook +9
To fully exploit van der Waals materials and heterostructures, new mass-scalable production routes that are low cost but preserve the high electronic and optical quality of the sin…
Highly nonlinear trion-polaritons in a monolayer semiconductor
R. P. A. Emmanuele, M. Sich, O. Kyriienko +9
Highly nonlinear optical materials with strong effective photon-photon interactions (Kerr-like nonlinearity) are required in the development of novel quantum sources of light as we…
Electrically tuneable exciton energy exchange between spatially separated 2-dimensional semiconductors in a microcavity
Henry A. Fernandez, Freddie Withers, Saverio Russo +1
Electrical control over the energy exchange between exciton states mediated by cavity-polaritons at room temperature is demonstrated. Spatially separated field effect transistors b…
Electrically tuneable exciton-polaritons through free electron doping in monolayer WS microcavities
Henry A. Fernandez, Freddie Withers, Saverio Russo +1
We demonstrate control over light-matter coupling at room temperature combining a field effect transistor (FET) with a tuneable optical microcavity. Our microcavity FET comprises a…
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…
The valley Zeeman effect in inter- and intra-valley trions in monolayer WSe
T. P. Lyons, S. Dufferwiel, M. Brooks +6
Monolayer transition metal dichalcogenides (TMDs) hold great promise for future information processing applications utilizing a combination of electron spin and valley pseudospin.…
Strain-engineering of twist-angle in graphene/hBN superlattice devices
Adolfo De Sanctis, Jake D. Mehew, Saad Alkhalifa +3
The observation of novel physical phenomena such as Hofstadter's butterfly, topological currents and unconventional superconductivity in graphene have been enabled by the replaceme…
Valley coherent exciton-polaritons in a monolayer semiconductor
S. Dufferwiel, T. P. Lyons, D. D. Solnyshkov +8
Two-dimensional transition metal dichalcogenide (TMD) semiconductors provide a unique possibility to access the electronic valley degree of freedom using polarized light, opening t…
Magnon-assisted tunnelling in van der Waals heterostructures based on CrBr3
Davit Ghazaryan, Mark T. Greenaway, Zihao Wang +14
The growing family of two-dimensional (2D) materials that are now available can be used to assemble van der Waals heterostructures with a wide range of properties. Of particular in…
Observing imperfection in atomic interfaces for van der Waals heterostructures
Aidan. P. Rooney, Aleksey Kozikov, Alexander N. Rudenko +8
Vertically stacked van der Waals heterostructures are a lucrative platform for exploring the rich electronic and optoelectronic phenomena in two-dimensional materials. Their perfor…
Water-based and Biocompatible 2D Crystal Inks: from Ink Formulation to All- Inkjet Printed Heterostructures
D. McManus, S. Vranic, F. Withers +10
Fully exploiting the properties of 2D crystals requires a mass production method able to produce heterostructures of arbitrary complexity on any substrate, including plastic. Solut…
Resonantly excited exciton dynamics in two-dimensional MoSe monolayers
L. Scarpelli, F. Masia, E. M. Alexeev +4
We report on the exciton and trion density dynamics in a single layer of MoSe, resonantly excited and probed using three-pulse four-wave mixing (FWM), at temperatures from 300K…
Sub-bandgap voltage electroluminescence and magneto-oscillations in a WSe2 light-emitting van der Waals heterostructure
J. Binder, F. Withers, M. R. Molas +8
We report on experimental investigations of an electrically driven WSe2 based light-emitting van der Waals heterostructure. We observe a threshold voltage for electroluminescence s…
Valley addressable exciton-polaritons in atomically thin semiconductors
S. Dufferwiel, T. P. Lyons, D. D. Solnyshkov +9
While conventional semiconductor technology relies on the manipulation of electrical charge for the implementation of computational logic, additional degrees of freedom such as spi…
Exciton and trion dynamics in atomically thin MoSe2 and WSe2: effect of localization
D. Schmidt, T. Godde, J. Schmutzler +9
We present a detailed investigation of the exciton and trion dynamics in naturally doped MoSe2 and WSe2 single atomic layers as a function of temperature in the range 10-300K under…
Electrically pumped single-defect light emitters in WSe
S. Schwarz, A. Kozikov, F. Withers +9
Recent developments in fabrication of van der Waals heterostructures enable new type of devices assembled by stacking atomically thin layers of two-dimensional materials. Using thi…
Macroscopic self-reorientation of interacting two-dimensional crystals
C. R. Woods, F. Withers, M. J. Zhu +13
Microelectromechanical systems, which can be moved or rotated with nanometre precision, already find applications in such fields like radio-frequency electronics, micro-attenuators…
WSe2 light-emitting tunneling transistors with enhanced brightness at room temperature
F. Withers, O. Del Pozo-Zamudio, S. Schwarz +15
Monolayers of molybdenum and tungsten dichalcogenides are direct bandgap semiconductors, which makes them promising for opto-electronic applications. In particular, van der Waals h…
Exciton-polaritons in van der Waals heterostructures embedded in tunable microcavities
S. Dufferwiel, S. Schwarz, F. Withers +13
Layered materials can be assembled vertically to fabricate a new class of van der Waals (VDW) heterostructures a few atomic layers thick, compatible with a wide range of substrates…
Electron transport of WS transistors in a hexagonal boron nitride dielectric environment
Freddie Withers, Thomas Hardisty Bointon, David Christopher Hudson +2
We present the first study of the intrinsic electrical properties of WS transistors fabricated with two different dielectric environments WS on SiO and WS on h-BN/S…
Light-emitting diodes by bandstructure engineering in van der Waals heterostructures
F. Withers, O. Del Pozo-Zamudio, A. Mishchenko +8
The advent of graphene and related 2D materials has recently led to a new technology: heterostructures based on these atomically thin crystals. The paradigm proved itself extremely…