Detail publikace

The effect of metallic substrates on the optical properties of monolayer MoSe2

GRZESZCZYK, M. BARTOŠ, M. MOLAS, M. NOGAJEWSKI, K. BOGUCKI, A. FAUGERAS, C. KOSSACKI, P. BABINSKI, A. POTEMSKI, M.

Originální název

The effect of metallic substrates on the optical properties of monolayer MoSe2

Typ

článek v časopise ve Web of Science, Jimp

Jazyk

angličtina

Originální abstrakt

Atomically thin materials, like semiconducting transition metal dichalcogenides (S-TMDs), are highly sensitive to the environment. This opens up an opportunity to externally control their properties by changing their surroundings. Photoluminescence and reflectance contrast techniques are employed to investigate the effect of metallic substrates on optical properties of MoSe2 monolayer (ML). The optical spectra of MoSe2 MLs deposited on Pt, Au, Mo and Zr have distinctive metal-related lineshapes. In particular, a substantial variation in the intensity ratio and the energy separation between a negative trion and a neutral exciton is observed. It is shown that using metals as substrates affects the doping of S-TMD MLs. The explanation of the effect involves the Schottky barrier formation at the interface between the MoSe2 ML and the metallic substrates. The alignment of energy levels at the metal/semiconductor junction allows for the transfer of charge carriers between them. We argue that a proper selection of metallic substrates can be a way to inject appropriate types of carriers into the respective bands of S-TMDs.

Klíčová slova

transition; dichalcogenides

Autoři

GRZESZCZYK, M.; BARTOŠ, M.; MOLAS, M.; NOGAJEWSKI, K.; BOGUCKI, A.; FAUGERAS, C.; KOSSACKI, P.; BABINSKI, A.; POTEMSKI, M.

Vydáno

18. 3. 2020

Nakladatel

Springer Nature

Místo

LONDON

ISSN

2045-2322

Periodikum

Scientific Reports

Ročník

10

Číslo

1

Stát

Spojené království Velké Británie a Severního Irska

Strany od

1

Strany do

7

Strany počet

7

URL

https://www.nature.com/articles/s41598-020-61673-0

Plný text v Digitální knihovně

http://hdl.handle.net/11012/195751

BibTex

@article{BUT165375,
  author="Magdalena {Grzeszczyk} and Miroslav {Bartoš} and Maciej {Molas} and Karol {Nogajewski} and Aleksander {Bogucki} and Clément {Faugeras} and Piotr {Kossacki} and Adam {Babinski} and Marek {Potemski}",
  title="The effect of metallic substrates on the optical properties of monolayer MoSe2",
  journal="Scientific Reports",
  year="2020",
  volume="10",
  number="1",
  pages="1--7",
  doi="10.1038/s41598-020-61673-0",
  issn="2045-2322",
  url="https://www.nature.com/articles/s41598-020-61673-0"
}