Excitonic devices with van der Waals heterostructures: valleytronics meets twistronics

A Ciarrocchi, F Tagarelli, A Avsar, A Kis - Nature Reviews Materials, 2022 - nature.com
Abstract 2D semiconducting transition metal dichalcogenides comprise an emerging class of
materials with distinct properties, including large exciton binding energies that reach …

Excitons and emergent quantum phenomena in stacked 2D semiconductors

NP Wilson, W Yao, J Shan, X Xu - Nature, 2021 - nature.com
The design and control of material interfaces is a foundational approach to realize
technologically useful effects and engineer material properties. This is especially true for two …

Bandgap engineering of two-dimensional semiconductor materials

A Chaves, JG Azadani, H Alsalman… - npj 2D Materials and …, 2020 - nature.com
Semiconductors are the basis of many vital technologies such as electronics, computing,
communications, optoelectronics, and sensing. Modern semiconductor technology can trace …

Interlayer exciton formation, relaxation, and transport in TMD van der Waals heterostructures

Y Jiang, S Chen, W Zheng, B Zheng… - Light: Science & …, 2021 - nature.com
Van der Waals (vdW) heterostructures based on transition metal dichalcogenides (TMDs)
generally possess a type-II band alignment that facilitates the formation of interlayer excitons …

Signatures of moiré-trapped valley excitons in MoSe2/WSe2 heterobilayers

KL Seyler, P Rivera, H Yu, NP Wilson, EL Ray… - Nature, 2019 - nature.com
The formation of moiré patterns in crystalline solids can be used to manipulate their
electronic properties, which are fundamentally influenced by periodic potential landscapes …

Evidence for moiré excitons in van der Waals heterostructures

K Tran, G Moody, F Wu, X Lu, J Choi, K Kim, A Rai… - Nature, 2019 - nature.com
Recent advances in the isolation and stacking of monolayers of van der Waals materials
have provided approaches for the preparation of quantum materials in the ultimate two …

Exciton physics and device application of two-dimensional transition metal dichalcogenide semiconductors

T Mueller, E Malic - npj 2D Materials and Applications, 2018 - nature.com
Two-dimensional group-VI transition metal dichalcogenide semiconductors, such as MoS2,
WSe2, and others, exhibit strong light-matter coupling and possess direct band gaps in the …

Ultrafast dynamics in van der Waals heterostructures

C **, EY Ma, O Karni, EC Regan, F Wang… - Nature …, 2018 - nature.com
Van der Waals heterostructures are synthetic quantum materials composed of stacks of
atomically thin two-dimensional (2D) layers. Because the electrons in the atomically thin 2D …

Interlayer valley excitons in heterobilayers of transition metal dichalcogenides

P Rivera, H Yu, KL Seyler, NP Wilson, W Yao… - Nature …, 2018 - nature.com
Stacking different two-dimensional crystals into van der Waals heterostructures provides an
exciting approach to designing quantum materials that can harness and extend the already …

Room-temperature electrical control of exciton flux in a van der Waals heterostructure

D Unuchek, A Ciarrocchi, A Avsar, K Watanabe… - Nature, 2018 - nature.com
Devices that rely on the manipulation of excitons—bound pairs of electrons and holes—hold
great promise for realizing efficient interconnects between optical data transmission and …