Indirect excitons in van der Waals heterostructures at room temperature

Abstract

Indirect excitons (IXs) in van der Waals transition-metal dichalcogenide (TMD) heterostructures are characterized by a high binding energy making them stable at room temperature and giving the opportunity for exploring fundamental phenomena in excitonic systems and developing excitonic devices operational at high temperatures. We present the observation of IXs at room temperature in van der Waals TMD heterostructures based on monolayers of MoS${}_2$ separated by atomically thin hexagonal boron nitride. The IXs realized in the TMD heterostructure have lifetimes orders of magnitude longer than lifetimes of direct excitons in single-layer TMD, and their energy is gate controlled.

References in corpus (11)

• Ultrafast Charge Transfer in Atomically Thin MoS2/WS2 Heterostructures
• Observation of Long-Lived Interlayer Excitons in Monolayer MoSe2-WSe2 Heterostructures
• Strong interlayer coupling in van der Waals heterostructures built from single-layer chalcogenides
• Probing Excitonic Dark States in Single-layer Tungsten Disulfide
• High-temperature superfluidity with indirect excitons in van der Waals heterostructures
• Long-lived direct and indirect interlayer excitons in van der Waals heterostructures
• Interlayer excitons and Band Alignment in MoS${}_2$/hBN/WSe${}_2$ van der Waals Heterostructures
• Exciton Condensation and Perfect Coulomb Drag
• Interlayer exciton dynamics in a dichalcogenide monolayer heterostructure
• Transport of dipolar excitons in (Al,Ga)N/GaN quantum wells
• Fluctuation and Commensurability Effect of Exciton Density Wave

Cited by in corpus (42)

• Interlayer excitons in bilayer MoS2 with strong oscillator strength up to room temperature
• Giant Stark splitting of an exciton in bilayer MoS${}_2$
• Exciton diffusion in monolayer semiconductors with suppressed disorder
• Localized bright luminescence of indirect excitons and trions in MoSe${}_2$/WSe${}_2$ van der Waals heterostructure
• Observation of Inter-layer Excitons in MoSe2 Single Crystals
• Nonclassical Exciton Diffusion in Monolayer WSe2
• Interlayer Exciton Diode and Transistor
• Lateral heterostructures and one-dimensional interfaces in 2D transition metal dichalcogenides
• Electrical Reservoirs for Bilayer Excitons
• Hexagonal boron nitride as an ideal substrate for carbon nanotube photonics
• Lateral Interfaces of Transition Metal Dichalcogenides: A Stable Tunable One-Dimensional Physics Platform
• Stacking-dependent exciton multiplicity in WSe${}_2$ bilayers
• Magnon-Mediated Indirect Exciton Condensation through Antiferromagnetic Insulators
• Theoretical methods for excitonic physics in two-dimensional materials
• Dynamic polarization of electron spins interacting with nuclei in semiconductor nanostructures
• Interaction of edge exciton polaritons with engineered defects in the van der Waals material Bi2Se3
• Voltage-controlled long-range propagation of indirect excitons in van der Waals heterostructure
• Bardasis-Schrieffer polaritons in excitonic insulators
• Quantum phase transition of a two-dimensional quadrupolar system
• Magnetoexcitons in transition-metal dichalcogenides monolayers, bilayers, and van der Waals heterostructures
• Anomalous exciton transport in response to a uniform, in-plane electric field
• Luminescence anomaly of dipolar valley excitons in homobilayer semiconductor moiré superlattices
• Collective interlayer pairing and pair superfluidity in vertically stacked layers of dipolar excitons
• Crossover from weakly indirect to direct excitons in atomically thin films of InSe
• Tunable properties of excitons in double monolayer semiconductor heterostructures
• Optical probing in a bilayer dark-bright condensate system
• Interlayer exciton polaritons in homobilayers of transition metal dichalcogenides
• Tunable strongly interacting dipolar excitons in hybrid perovskites
• Quantum Anomalous Valley Hall Effect for Bosons
• Near-Intrinsic Photo- and Electroluminescence from Single-Walled Carbon Nanotube Thin Films on BCB-Passivated Surfaces
• Quenching of exciton recombination in strained two-dimensional monochalcogenides
• Long-distance decay-less spin transport in indirect excitons in a van der Waals heterostructure
• Twistronics and moiré superlattice physics in 2D transition metal dichalcogenides
• Superfluid drag between excitonic polaritons and superconducting electron gas
• Tightly-bound and room-temperature-stable excitons in van der Waals degenerate-semiconductor Bi4O4SeCl2 with high charge-carrier density
• Driven Dipolariton Transistors in Y-shaped Channels
• Electrically tunable MoSe${}_2$/WSe${}_2$ heterostructure-based quantum dot
• Effect of exciton-phonon coupling on the interlayer excitons in transition metal dichalcogenides double layers
• Variational and field-theoretical approach to exciton-exciton interactions and biexcitons in semiconductors
• Light-enhanced dipolar interactions between exciton polaritons
• Trimer superfluidity of antiparallel dipolar excitons in a bilayer heterostructure
• Emergence of a condensate with finite-energy Cooper pairing in hybrid exciton/superconductor systems