13 citations · 33 across the 15 of their papers we have counts for
15 papers
Strain engineering of transient exciton diffusion in WSe2 monolayers at cryogenic temperatures
Roberto Rosati, Mohammed Adel Aly, Mohammed Adel Aly Nouh +3
Tungsten-based transition metal dichalcogenides exhibit dark excitons as the energetically lowest states. These are crucial for exciton thermalization and propagation and they domi…
Coulomb-mediated interactions of charge-transfer excitons in TMD lateral heterostructures
Kabyashree Sonowal, Daniel Erkensten, Ermin Malic +1
Lateral heterostructures of transition-metal dichalcogenides (TMDs) host spatially separated charge-transfer (CT) excitons. While analogous to interlayer excitons in vertical TMD h…
Nonequilibrium transport in epitaxial CsPbBr3 single crystals
Seryio Saris, Roberto Rosati, Vladimir Bruevich +5
Transport of optically excited carriers in semiconductors is typically described within a quasi-equilibrium picture, where energy is carried by a single thermalized quasiparticle p…
Valley-controlled many-body exciton interactions in monolayer WSe phototransistors
Daniel Vaquero, Cédric A. Cordero-Silis, Daniel Erkensten +6
Many-body exciton interactions shape the optoelectronic response of atomically-thin transition metal dichalcogenides, yet optical control of these interactions remains largely unex…
2D Excitonics with Atomically Thin Lateral Heterostructures
S. Shradha, R. Rosati, H. Lamsaadi +18
Semiconducting transition metal dichalcogenides (TMDs), such as MoSe and WSe, exhibit unique optical and electronic properties. Vertical stacking of layers of one or more T…
Polariton transport in 2D semiconductors: Phonon-mediated transitions between ballistic, superdiffusive and exciton-limited regimes
Jamie M. Fitzgerald, Roberto Rosati, Ermin Malic
Exciton transport in 2D semiconductors holds promise for room-temperature, ultra-compact optoelectronic devices, but it is limited by short propagation distances. Hybridization of…
Tuning relaxation and nonlinear upconversion of valley-exciton-polaritons in a monolayer semiconductor
Hangyong Shan, Jamie M. Fitzgerald, Roberto Rosati +9
Controlling exciton relaxation and energy conversion pathways via their coupling to photonic modes is a central task in cavity-mediated quantum materials research. In this context,…
Impact of charge transfer excitons on unidirectional exciton transport in lateral TMD heterostructures
Roberto Rosati, Sai Shradha, Julian Picker +3
Lateral heterostructures built of monolayers of transition metal dichalcogenides (TMDs) are characterized by a thin 1D interface exhibiting a large energy offset. Recently, the for…
Strain engineering of valley-polarized hybrid excitons in a 2D semiconductor
Abhijeet M. Kumar, Douglas J. Bock, Denis Yagodkin +11
Encoding and manipulating digital information in quantum degrees of freedom is one of the major challenges of today's science and technology. The valley indices of excitons in tran…
Trion Engineered Multimodal Transistors in Two dimensional Bilayer Semiconductor Lateral Heterostructures
Baisali Kundu, Poulomi Chakrabarty, Avijit Dhara +9
Multimodal device operations are essential to advancing the integration of 2D semiconductors in electronics, photonics, information and quantum technology. Precise control over car…
Infrared magneto-polaritons in MoTe mono- and bilayers
Bo Han, Jamie M. Fitzgerald, Lukas Lackner +8
MoTe monolayers and bilayers are unique within the family of van-der-Waals materials since they pave the way towards atomically thin infrared light-matter quantum interfaces, p…
Two dimensional semiconductors: optical and electronic properties
Roberto Rosati, Ioannis Paradisanos, Ermin Malic +1
In the last decade atomically thin 2D materials have emerged as a perfect platform for studying and tuning light-matter interaction and electronic properties in nanostructures. The…
Revealing dark exciton signatures in polariton spectra of 2D materials
Beatriz Ferreira, Hangyong Shan, Roberto Rosati +12
Dark excitons in transition metal dichalcogenides (TMD) have been so far neglected in the context of polariton physics due to their lack of oscillator strength. However, in tungste…
Circumventing the polariton bottleneck via dark excitons in 2D semiconductors
Jamie M. Fitzgerald, Roberto Rosati, Beatriz Ferreira +3
Efficient scattering into the exciton polariton ground state is a key prerequisite for generating Bose-Einstein condensates and low-threshold polariton lasing. However, this can be…
Strain fingerprinting of exciton valley character
Abhijeet Kumar, Denis Yagodkin, Roberto Rosati +13
Momentum-indirect excitons composed of electrons and holes in different valleys define optoelectronic properties of many semiconductors, but are challenging to detect due to their…