Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/81341
Título: | Strain-modulated optical response in 2D MoSe2 made by Na-assisted CVD on glass |
Autor(es): | Rodrigues, João Grzonka, Justyna Fernandes, João Santos, João Bondarchuk, Oleksandr Ferreira, Paulo Alpuim, P. Capasso, Andrea |
Data: | 23-Mai-2022 |
Editora: | American Institute of Physics |
Revista: | Applied Physics Letters |
Citação: | Rodrigues, J., Grzonka, J., Fernandes, J., Santos, J., Bondarchuk, O., Ferreira, P., … Capasso, A. (2022, May 23). Strain-modulated optical response in 2D MoSe2 made by Na-assisted CVD on glass. Applied Physics Letters. AIP Publishing. http://doi.org/10.1063/5.0090034 |
Resumo(s): | Extended investigations on 2D transition metal dichalcogenides (TMDCs) have opened sound possibilities to apply these materials in several technological fields such as sensing. To this end, fully reproducible methods for the wafer-scale production of crystalline and uniform 2D TMDCs are in demand. In this work, atomically thin MoSe2 was grown by atmospheric-pressure chemical vapor deposition using the Na-assisted process with Se powder and Mo foil precursors on a glass substrate. The samples were extensively characterized via Raman and photoluminescence spectroscopy, atomic force microscopy, transmission electron microscopy, and x-ray photoelectron spectroscopy. The MoSe2 samples consist of submillimeter, monolayer single-crystals with 2H phase configuration. Being monolayer and crystalline, the samples exhibit well-defined and intense photoluminescence. CVD-grown 2D MoSe2 was integrated into a device with strain-tunable optical properties and tested. Under tensile strain (in the range of 0.2%–0.4%), the spectral emission responded to an in-plane strain with marked peak shifts toward lower energies for increasing levels of strain (∼3 and ∼2 nm shift for the main PL component at 0.2% and 0.4%, respectively), indicating a reduction of the bandgap. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/81341 |
DOI: | 10.1063/5.0090034 |
ISSN: | 0003-6951 |
e-ISSN: | 1077-3118 |
Versão da editora: | https://aip.scitation.org/doi/10.1063/5.0090034 |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - CEP - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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Appl.Phys.Lett. 120 (2022) 213104.pdf | Article | 2,29 MB | Adobe PDF | Ver/Abrir |