# Impact of temperature on the brightening of neutral and charged dark excitons in WSe<sub>2</sub> monolayer

https://mdr.nims.go.jp/datasets/c5ecc2fd-bb03-400b-8802-fd18b468d8b2

## File

- [10.1515_nanoph-2024-0385.pdf](https://mdr.nims.go.jp/filesets/80ebcd6d-4dee-4238-b0df-63414eee1b8d/download) ([Detail](https://mdr.nims.go.jp/filesets/80ebcd6d-4dee-4238-b0df-63414eee1b8d.md))

## Id

c5ecc2fd-bb03-400b-8802-fd18b468d8b2

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-05T04:26:56.943836Z

## Updated at

2025-02-05T07:30:27.286014Z

## Published at

2025-02-05T07:30:27.376659Z

## Doi



## First published url

https://doi.org/10.1515/nanoph-2024-0385

## Date published

2024-12-05

## Recorded date published

2024-12-5

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Impact of temperature on the brightening of neutral and charged dark excitons
    in WSe<sub>2</sub> monolayer
  title_type: original
  lang: en

## Description

- description: The optically dark states play an important role in the electronic
    and optical properties of mono- layers (MLs) of semiconducting transition metal
    dichalcogenides. The effect of temperature on the in-plane-field activation of
    the neutral and charged dark excitons is investigated in a WSe2 ML encapsulated
    in hexagonal BN flakes. The brightening rates of the neutral dark (XD) and grey
    (XG) excitons and the negative dark trion (TD) differ substantially at a particular
    temperature, but more importantly they vanish considerably by almost 5 orders
    of magnitude with the temperature increased from 4.2 K to 100 K. The quenching
    of the dark-related emissions is accompanied by the two-order-of-magnitude enlargement
    of the neutral bright counterparts, i.e. neutral bright exciton (XB) and spin-singlet
    (TS) and spin-triplet (TT) negative trions, due to the thermal activations of
    dark states. Furthermore, the energy splittings between the dark XD and TD complexes
    and the corresponding bright XB, TS, and TT ones vary with temperature increases
    from 4.2 K to 100 K. This can be explained in terms of the different exciton-phonon
    couplings for the bright and dark excitons because of the different symmetry properties
    of such excitons.
  description_type: abstract
  lang: und

## Creator

- name: Łucja Kipczak
  role: author
  orcid: https://orcid.org/0000-0003-1266-0201
- name: Natalia Zawadzka
  role: author
  orcid: https://orcid.org/0000-0002-3282-9513
- name: Dipankar Jana
  role: author
  orcid: https://orcid.org/0000-0001-9935-4885
- name: Igor Antoniazzi
  role: author
  orcid: https://orcid.org/0000-0002-0803-6011
- name: Magdalena Grzeszczyk
  role: author
  orcid: https://orcid.org/0000-0001-6861-3098
- name: Małgorzata Zinkiewicz
  role: author
  orcid: https://orcid.org/0000-0002-7472-5501
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
- name: Marek Potemski
  role: author
  orcid: https://orcid.org/0000-0001-8881-6618
- name: Clément Faugeras
  role: author
  orcid: https://orcid.org/0000-0002-9615-8739
- name: Adam Babiński
  role: author
  orcid: https://orcid.org/0000-0002-5591-4825
- name: Maciej R. Molas
  role: author
  orcid: https://orcid.org/0000-0002-5516-9415

## Contact agent



## Publisher

organization: Walter de Gruyter GmbH

## Managing organization



## Keyword

- subject: Dark states
  schema: not_defined
- subject: excitons
  schema: not_defined
- subject: temperature depend
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nanophotonics
  issn: '21928614'
  volume: '13'
  issue: '26'
  start_page: 4743
  end_page: 4749

## Conference



## Related item



## Funding

- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- identifier: IRA, FENG.02.01-IP.05-5 T004/23
  funder_name: Fundacja na rzecz Nauki Polskiej
- identifier: IRP ‘2DM’
  funder_name: Centre National de la Recherche Scientifique
- identifier: 2018/31/B/ST3/02111
  funder_name: Narodowe Centrum Nauki
- identifier: MEXT
  funder_name: World Premier International Research Center Initiative
- identifier: DIR/WK/2018/07
  funder_name: Polish Ministry of Education and Science
- identifier: CENTERA2
  funder_name: CEZAMAT Warsaw University of Technology

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 80ebcd6d-4dee-4238-b0df-63414eee1b8d
  filename: 10.1515_nanoph-2024-0385.pdf
  content_type: application/pdf
  size: 929669
  md5: f411acfbd5b8660231f5c5059afe7656

## Thumbnail

fileset_id: 80ebcd6d-4dee-4238-b0df-63414eee1b8d
filename: 10.1515_nanoph-2024-0385.pdf