# Exciton States in Monolayer MoSe2 and MoTe2 Probed by Upconversion Spectroscopy

https://mdr.nims.go.jp/datasets/3520c124-d3f8-4eb8-a28d-94cbdb00bb53

## File

- [PhysRevX.8.031073.pdf](https://mdr.nims.go.jp/filesets/675e8080-b648-4e5c-9507-37ceb1d424cd/download) ([Detail](https://mdr.nims.go.jp/filesets/675e8080-b648-4e5c-9507-37ceb1d424cd.md))

## Id

3520c124-d3f8-4eb8-a28d-94cbdb00bb53

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-20T05:06:42.316831Z

## Updated at

2025-02-23T13:50:21.481383Z

## Published at

2025-02-23T13:50:21.547409Z

## Doi



## First published url

https://doi.org/10.1103/PhysRevX.8.031073

## Date published

2018-09-18

## Recorded date published

2018-9

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Exciton states in monolayer MoSe2 and MoTe2 probed by upconversion spectroscopy
  title_type: alternative
  lang: ja
- title: Exciton States in Monolayer MoSe2 and MoTe2 Probed by Upconversion Spectroscopy
  title_type: original
  lang: en

## Description

- description: 'We show that encapsulation in hBN results in emission line width of
    the A:1s exciton below 1.5 meV and 3 meV in MoSe2 and MoTe2 monolayer samples,
    respectively. This allows us to investigate the excited exciton states by photoluminescence
    upconversion spectroscopy for both monolayer materials. The excitation laser is
    tuned into resonance with the A:1s transition and we observe emission of excited
    exciton states up to 200 meV above the laser energy. We demonstrate bias control
    of the efficiency of this non-linear optical process. At the origin of upconversion
    our model calculations suggest an exciton-exciton (Auger) scattering mechanism
    specific to TMD MLs involving an excited conduction band thus generating high
    energy excitons with small wave-vectors. '
  description_type: abstract
  lang: eng

## Creator

- name: Bo Han
  role: author
  organization: Universite de Toulouse
- name: Cedric Robert
  role: author
  organization: Universite de Toulouse
- name: Emmanuel Courtade
  role: author
  organization: Universite de Toulouse
- name: Marco Manca
  role: author
  organization: Universite de Toulouse
- name: Shalini Shree
  role: author
  organization: Universite de Toulouse
- name: Thierry Amand
  role: author
  organization: Universite de Toulouse
- name: Pierre Renucci
  role: author
  organization: Universite de Toulouse
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  department: Research Center for Functional Materials/Exploring Function Field/High
    Pressure Group
  ror: https://ror.org/026v1ze26
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  department: Research Center for Functional Materials/Electric and Electronic Materials
    Field/Electroceramics Group
  ror: https://ror.org/026v1ze26
- name: Xavier Marie
  role: author
  organization: Universite de Toulouse
- name: Leonid  E. Golub
  role: author
  organization: Ioffe Institute
- name: Mikhai  M. Glazov
  role: author
  organization: Ioffe Institute
- name: Bernhard Urbaszek
  role: author
  organization: Universite de Toulouse

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: Transition metal dichalcogenides
  schema: not_defined
- subject: exciton states
  schema: not_defined
- subject: MoSe2
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: PHYSICAL REVIEW X
  issn: '21603308'
  volume: '8'
  issue: '3'
  article_number: '031073'

## Conference



## Related item



## Funding

- funder_name: Agence Nationale de la Recherche
- identifier: '676108'
  funder_name: H2020 Marie Sklodowska-Curie Actions
- funder_name: Institut Universitaire de France
- funder_name: Ministry of Education, Culture, Sports, Science and Technology
- identifier: JPMJCR15F3
  funder_name: Core Research for Evolutional Science and Technology
- funder_name: Japan Science and Technology Agency
- identifier: 17-02-00383
  funder_name: Russian Foundation for Basic Research
- identifier: 17-52-16020
  funder_name: Russian Foundation for Basic Research
- identifier: '721394'
  funder_name: ITN 4PHOTON
- funder_name: LIA ILNACS
- identifier: MD-1555.2017.2
  funder_name: RF President Grant
- funder_name: BASIS Foundation

## Instrument



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## Specimen



## Chemical composition



## Structure for specimen



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## Computational method



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## Fileset

- id: 675e8080-b648-4e5c-9507-37ceb1d424cd
  filename: PhysRevX.8.031073.pdf
  content_type: application/pdf
  size: 1907387
  md5: 0ef397b577c8b337ef7b251712969775

## Thumbnail

fileset_id: 675e8080-b648-4e5c-9507-37ceb1d424cd
filename: PhysRevX.8.031073.pdf