Publication detail

Excitonic Complexes in n-Doped WS2 Monolayer

ZINKIEWITZ, M. WOZNIAK, T. KAZIMIERCZUK, T. KAPUSCINSKI, P. ORESZCZUK, K. GRZESZCZYK, M. BARTOŠ, M. NOGAJEWSKI, K. WATANABE, K. TANIGUCHI, T. FAUGERAS, C. KOSSACKI, P. POTEMSKI, M. BABINSKI, A. MOLAS, M.

Original Title

Excitonic Complexes in n-Doped WS2 Monolayer

Type

journal article in Web of Science

Language

English

Original Abstract

We investigate the origin of emission lines apparent in the low-temperature photoluminescence spectra of n-doped WS2 monolayer embedded in hexagonal BN layers using external magnetic fields and first-principles calculations. Apart from the neutral A exciton line, all observed emission lines are related to the negatively charged excitons. Consequently, we identify emissions due to both the bright singlet and triplet) and dark (spin- and momentum-forbidden) negative trions as well as the phonon replicas of the latter optically inactive complexes. The semidark trions and negative biexcitons are distinguished. On the basis of their experimentally extracted and theoretically calculated g-factors, we identify three distinct families of emissions due to exciton complexes in WS,: bright, intravalley, and intervalley dark. The g-factors of the spin-split subbands in both the conduction and valence bands are also determined.

Keywords

tungsten disulfide monolayer; exciton; trion; dark exciton; phonon replica; biexciton

Authors

ZINKIEWITZ, M.; WOZNIAK, T.; KAZIMIERCZUK, T.; KAPUSCINSKI, P.; ORESZCZUK, K.; GRZESZCZYK, M.; BARTOŠ, M.; NOGAJEWSKI, K.; WATANABE, K.; TANIGUCHI, T.; FAUGERAS, C.; KOSSACKI, P.; POTEMSKI, M.; BABINSKI, A.; MOLAS, M.

Released

24. 3. 2021

Publisher

American Chemical Society

Location

WASHINGTON

ISBN

1530-6984

Periodical

NANO LETTERS

Year of study

21

Number

6

State

United States of America

Pages from

2519

Pages to

2525

Pages count

7

URL

https://pubs.acs.org/doi/10.1021/acs.nanolett.0c05021

Full text in the Digital Library

http://hdl.handle.net/11012/202273

BibTex

@article{BUT172975,
  author="Malgorzata {Zinkiewitz} and Tomasz {Wozniak} and Tomasz {Kazimierczuk} and Piotr {Kapuscinski} and Kacper {Oreszczuk} and Magdalena {Grzeszczyk} and Miroslav {Bartoš} and Karol {Nogajewski} and Kenji {Watanabe} and Takashi {Taniguchi} and Clément {Faugeras} and Piotr {Kossacki} and Marek {Potemski} and Adam {Babinski} and Maciej {Molas}",
  title="Excitonic Complexes in n-Doped WS2 Monolayer",
  journal="NANO LETTERS",
  year="2021",
  volume="21",
  number="6",
  pages="2519--2525",
  doi="10.1021/acs.nanolett.0c05021",
  issn="1530-6984",
  url="https://pubs.acs.org/doi/10.1021/acs.nanolett.0c05021"
}