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   Articles with "ws2 wse2" as a keyword



Rational Design of WSe2/WS2/WSe2 Dual Junction Phototransistor Incorporating High Responsivity and Detectivity

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recommendations! Published in 2022 at "Small Methods"

DOI: 10.1002/smtd.202200583

Abstract: The excellent semiconducting properties and ultrathin morphological characteristics allow van der Waals (vdW) heterostructures based on 2D materials to be promising channel materials for the next‐generation optoelectronic devices, especially in photodetectors. Although various 2D heterostructure‐based… read more here.

Keywords: high responsivity; responsivity detectivity; ws2 wse2; detectivity ... See more keywords

Stability of direct band gap under mechanical strains for monolayer MoS2, MoSe2, WS2 and WSe2

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recommendations! Published in 2018 at "Physica E: Low-dimensional Systems and Nanostructures"

DOI: 10.1016/j.physe.2018.03.016

Abstract: Abstract Single layer transition-metal dichalcogenides materials (MoS2, MoSe2, WS2 and WSe2) are investigated using the first-principles method with the emphasis on their responses to mechanical strains. All these materials display the direct band gap under… read more here.

Keywords: mos2 mose2; band gap; ws2 wse2; band ... See more keywords

p-Type Conversion of WS2 and WSe2 by Position-Selective Oxidation Doping and Its Application in Top Gate Transistors.

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recommendations! Published in 2023 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.3c04052

Abstract: For the complementary operation of two-dimensional (2D) material-based field-effect transistors (FETs), high-performance p-type FETs are essential. In this study, we applied surface charge-transfer doping from WOx, which has a large work function of ∼6.5 eV,… read more here.

Keywords: ws2 wse2; top gate; type conversion; ws2 ... See more keywords

Dose-Resolved Oxygen Passivation and Vacancy Formation in WS2 and WSe2 under Ambient X-ray Irradiation.

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recommendations! Published in 2025 at "ACS applied materials & interfaces"

DOI: 10.1021/acsami.5c19570

Abstract: Defect chemistry critically shapes the optical response of atomically thin WQ2 (Q = S, Se), yet the interplay between ambient oxygen and ionizing radiation remains poorly quantified. Here, we map dose-resolved variations in monolayer and… read more here.

Keywords: ambient; dose resolved; chemistry; ws2 wse2 ... See more keywords

Dark trions and biexcitons in WS2 and WSe2 made bright by e-e scattering

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recommendations! Published in 2017 at "Scientific Reports"

DOI: 10.1038/srep45998

Abstract: The direct band gap character and large spin-orbit splitting of the valence band edges (at the K and K’ valleys) in monolayer transition metal dichalcogenides have put these two-dimensional materials under the spot-light of intense… read more here.

Keywords: biexcitons ws2; dark trions; wse2 made; ws2 wse2 ... See more keywords

Electrically tunable non-radiative lifetime in WS2/WSe2 heterostructures.

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recommendations! Published in 2024 at "Nanoscale"

DOI: 10.1039/d4nr01982b

Abstract: Van der Waals heterostructures based on transition metal dichalcogenides (TMDs) have emerged as excellent candidates for next-generation optoelectronics and valleytronics, due to their fascinating physical properties. The understanding and active control of the relaxation dynamics… read more here.

Keywords: heterostructures electrically; electrically tunable; tunable non; non radiative ... See more keywords

Interface design for the optimal optoelectronic conversion properties of MoS2/WS2/WSe2 van der Waals heterostructures

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recommendations! Published in 2024 at "Journal of Applied Physics"

DOI: 10.1063/5.0230030

Abstract: The interfacial nature of few-layer transition metal dichalcogenide (TMD)-based van der Waals heterostructures (vdWHs) plays a vital role in their optoelectronic properties and can greatly influence charge transfer and recombination. Here, we consider a trilayer… read more here.

Keywords: van der; waals heterostructures; mos2 ws2; der waals ... See more keywords

Polarized photoluminescence spectroscopy in WS2, WSe2 atomic layers and heterostructures by cylindrical vector beams

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recommendations! Published in 2021 at "Chinese Physics B"

DOI: 10.1088/1674-1056/abf3b6

Abstract: Due to the large exciton binding energy, two-dimensional (2D) transition metal dichalcogenides (TMDCs) provide an ideal platform for studying excitonic states and related photonics and optoelectronics. Polarization states lead to distinct light-matter interactions which are… read more here.

Keywords: exciton; ws2 wse2; wse2 atomic; spectroscopy ... See more keywords
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Identification of twist-angle-dependent excitons in WS2/WSe2 heterobilayers

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recommendations! Published in 2021 at "National Science Review"

DOI: 10.1093/nsr/nwab135

Abstract: Stacking atomically thin films enables artificial construction of van der Waals heterostructures with exotic functionalities such as superconductivity, the quantum Hall effect, and engineered light-matter interactions. In particular, heterobilayers composed of monolayer transition metal dichalcogenides… read more here.

Keywords: transition; ws2 wse2; angle dependent; twist angle ... See more keywords

Strong interlayer interactions in bilayer and trilayer moiré superlattices

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recommendations! Published in 2022 at "Science Advances"

DOI: 10.1126/sciadv.abk1911

Abstract: Moiré superlattices constructed from transition metal dichalcogenides have demonstrated a series of emergent phenomena, including moiré excitons, flat bands, and correlated insulating states. All of these phenomena depend crucially on the presence of strong moiré… read more here.

Keywords: trilayer; ws2 wse2; strong interlayer; moir superlattices ... See more keywords

Enhanced Sensitivity of A549 Cells to Doxorubicin with WS2 and WSe2 Nanosheets via the Induction of Autophagy

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recommendations! Published in 2024 at "International Journal of Molecular Sciences"

DOI: 10.3390/ijms25021164

Abstract: The excellent physicochemical properties of two-dimensional transition-metal dichalcogenides (2D TMDCs) such as WS2 and WSe2 provide potential benefits for biomedical applications, such as drug delivery, photothermal therapy, and bioimaging. WS2 and WSe2 have recently been… read more here.

Keywords: lung cancer; wse2; a549; cells doxorubicin ... See more keywords