Rational Design of WSe2/WS2/WSe2 Dual Junction Phototransistor Incorporating High Responsivity and Detectivity
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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.
Sign Up to like & getrecommendations! 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
Dark trions and biexcitons in WS2 and WSe2 made bright by e-e scattering
Sign Up to like & getrecommendations! 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
Polarized photoluminescence spectroscopy in WS2, WSe2 atomic layers and heterostructures by cylindrical vector beams
Sign Up to like & getrecommendations! 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
Identification of twist-angle-dependent excitons in WS2/WSe2 heterobilayers
Sign Up to like & getrecommendations! 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
Sign Up to like & getrecommendations! 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