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pro vyhledávání: '"Román, Ricardo Javier Peña"'
Autor:
Román, Ricardo Javier Peña, Auad, Yves, Grasso, Lucas, Padilha, Lazaro A, Alvarez, Fernando, Barcelos, Ingrid David, Kociak, Mathieu, Zagonel, Luiz Fernando
Publikováno v:
Review of Scientific Instruments 93, 043704 (2022)
We present the design, implementation, and illustrative results of a light collection/injection strategy based on an off-axis parabolic mirror collector for a low-temperature Scanning Tunneling Microscope (STM). This device allows us to perform STM i
Externí odkaz:
http://arxiv.org/abs/2210.04833
Autor:
Román, Ricardo Javier Peña, Auad, Yves, Grasso, Lucas, Alvarez, Fernando, Barcelos, Ingrid David, Zagonel, Luiz Fernando
Publikováno v:
Nanoscale, 2020,12, 13460-13470
We have studied the excitonic properties of exfoliated tungsten diselenide (WSe$_2$) monolayers transferred to gold substrates using the tunneling current in a Scanning Tunneling Microscope (STM) operated in air to excite the light emission locally.
Externí odkaz:
http://arxiv.org/abs/2210.01991
Autor:
Román}, Ricardo Javier Peña, Pommier, Delphine, Bretel, Rémi, López, Luis E. Parra, Lorchat, Etienne, Chaste, Julien, Ouerghi, Abdelkarim, Moal, Séverine Le, Boer-Duchemin, Elizabeth, Dujardin, Gérald, Borisov, Andrey G., Zagonel, Luiz F., Schull, Guillaume, Berciaud, Stéphane, Moal, Eric Le
Inelastic electron tunneling in a scanning tunneling microscope (STM) is used to generate excitons in monolayer tungsten disulfide (WS$_2$). Excitonic electroluminescence is measured both at positive and negative sample bias. Using optical spectrosco
Externí odkaz:
http://arxiv.org/abs/2205.12789
Autor:
Román, Ricardo Javier Peña, Costa, Fábio J R Costa, Zobelli, Alberto, Elias, Christine, Valvin, Pierre, Cassabois, Guillaume, Gil, Bernard, Summerfield, Alex, Cheng, Tin S, Mellor, Christopher J, Beton, Peter H, Novikov, Sergei V, Zagonel, Luiz F
Publikováno v:
2D Material 8 044001 (2021)
Being a flexible wide band gap semiconductor, hexagonal boron nitride (h-BN) has great potential for technological applications like efficient deep ultraviolet light sources, building block for two-dimensional heterostructures and room temperature si
Externí odkaz:
http://arxiv.org/abs/2107.07950