Full metadata record
DC Field | Value | Language |
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dc.contributor.author | Powar, Niket Suresh | - |
dc.contributor.author | In, Su-Il | - |
dc.contributor.author | Shanmugam, Mariyappan | - |
dc.date.accessioned | 2023-07-27T15:40:16Z | - |
dc.date.available | 2023-07-27T15:40:16Z | - |
dc.date.created | 2023-07-20 | - |
dc.date.issued | 2023-07 | - |
dc.identifier.issn | 2452-2627 | - |
dc.identifier.uri | http://hdl.handle.net/20.500.11750/46288 | - |
dc.description.abstract | Structural, optical, nanomorphological, photoresponsive and electrochemical charge transport characteristics of chemically assembled 2D-layered Tungsten Selenide (WSe2)-Tungsten Carbide (WC) heterostructure were examined. WC exhibited an optical bandgap of ∼3.2 eV, which did not show any optical absorption in the visible spectrum, and WSe2 showed the same in the spectral range of 200 nm-950 nm with an optical bandgap of ∼1.3 eV. Chemical assembly of WSe2-WC heterostructure was made in which the weight fraction of WSe2 was varied to understand its role in WC. Among the 2, 4, 6 and 8 wt% of WSe2 in WC, we observed that 6 wt% exhibited a dominant absorption and fluorescence emission (∼600 nm). High-resolution transmission electron microscopic studies revealed the d-spacing values of 0.24 nm and 0.33 nm for WSe2 and WC, respectively. Further, the presence of W (4f), Se (2d) and C (1 s) were traced out and studied by X-ray photoelectron spectroscopy. Raman modes A1g and EAg 1 at 150 cm−1 and 250 cm−1 asserted the presence of WSe2 in WC which exhibited A1g at 150 cm−1. In addition, the individual WSe2 and WC along with WSe2-WC heterostructures were subjected to X-ray diffraction to study the crystallite size and strain-induced broadening due to the lattice deformation that occurred at the WSe2-WC heterostructures. Incorporating WSe2 into WC increased the photo-responsive behaviour and facilitated the charge transport as envisaged from the electrochemical impedance spectroscopic studies. © 2023 | - |
dc.language | English | - |
dc.publisher | Elsevier B.V. | - |
dc.title | Chemically assembled 2D-van der Waals WSe2-WC heterostructured photo-anodes for electrochemical devices | - |
dc.type | Article | - |
dc.identifier.doi | 10.1016/j.flatc.2023.100523 | - |
dc.identifier.scopusid | 2-s2.0-85164369679 | - |
dc.identifier.bibliographicCitation | FlatChem, v.40 | - |
dc.description.isOpenAccess | FALSE | - |
dc.subject.keywordAuthor | 2D-layered materials | - |
dc.subject.keywordAuthor | Heterostructure | - |
dc.subject.keywordAuthor | Charge transport | - |
dc.subject.keywordAuthor | Photoresponse | - |
dc.subject.keywordPlus | ATOMIC LAYER DEPOSITION | - |
dc.subject.keywordPlus | TUNGSTEN CARBIDE | - |
dc.subject.keywordPlus | VAPOR-DEPOSITION | - |
dc.subject.keywordPlus | 2D MATERIALS | - |
dc.subject.keywordPlus | MOS2 | - |
dc.subject.keywordPlus | WS2 | - |
dc.subject.keywordPlus | EXFOLIATION | - |
dc.subject.keywordPlus | EXCITONS | - |
dc.subject.keywordPlus | GROWTH | - |
dc.subject.keywordPlus | FILM | - |
dc.citation.title | FlatChem | - |
dc.citation.volume | 40 | - |
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