| Autor: |
Vera Marinova, Krastyo Buchkov, Vladimira Videva, Irnik Dionisiev, Nikolay Minev, Velichka Strijkova, Deyan Dimov, Hristosko Dikov, Ivalina Avramova, Peter Rafailov, Dimitre Dimitrov |
| Přispěvatelé: |
Krastyo Buchkov, Vladimira Videva, Ivalina Avramova, Vera Marinova, Velichka Strijkova |
| Jazyk: |
angličtina |
| Rok vydání: |
2022 |
| Předmět: |
|
| Zdroj: |
Coatings; Volume 12; Issue 3; Pages: 353 |
| ISSN: |
2079-6412 |
| DOI: |
10.3390/coatings12030353 |
| Popis: |
We report the synthesis of tungsten diselenide (WSe2) flakes and continuous layers using an atmospheric pressure thermally assisted conversion (TAC) method, where the tungsten (W) layers were pre-deposited by a magnetron sputtering system onto fused silica substrates. Optical microscopy (OM) and atomic force microscopy (AFM) mapping predominantly revealed the formation of isolated flakes with different shapes, mainly concentrated near the substrate’s edges, which tended to form clusters and to further overlap to continuous layers, moving to the central part of the fused silica substrates. Raman spectroscopy and photoluminescence measurements confirmed the existence of atomically thin flakes and 2H-WSe2 continuous layers. The measured current–voltage characteristics indicated Ohmic behavior under dark conditions and photo illumination. Finally, the demonstrated resistor-like behavior suggested unlimited prospects for WSe2 integration into a variety of heterostructures. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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