# Interaction-driven transport of dark excitons in 2D semiconductors with phonon-mediated optical readout

https://mdr.nims.go.jp/datasets/d1b99de6-4d18-46c5-91c5-df1a86964eb4

## File

- [s41467-023-39339-y.pdf](https://mdr.nims.go.jp/filesets/b9b90954-8dfe-4f16-ae77-61f802655df9/download) ([Detail](https://mdr.nims.go.jp/filesets/b9b90954-8dfe-4f16-ae77-61f802655df9.md))

## Id

d1b99de6-4d18-46c5-91c5-df1a86964eb4

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T08:35:45.342637Z

## Updated at

2025-02-17T03:30:21.414997Z

## Published at

2025-02-17T03:30:21.652678Z

## Doi



## First published url

https://doi.org/10.1038/s41467-023-39339-y

## Date published

2023-06-22

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Interaction-driven transport of dark excitons in 2D semiconductors with phonon-mediated
    optical readout
  title_type: original
  lang: en

## Description

- description: The growing field of quantum information technology requires propagation
    of information over long distances with efficient readout mechanisms. Excitonic
    quantum fluids have emerged as a powerful platform for the realization of such
    long-range transport due to their straightforward electro-optical conversion.
    In two-dimensional transition metal dichalcogenides (TMDs), the coupling between
    spin and valley provides exciting opportunities for harnessing, manipulating and
    storing bits of information. However, the large inhomogeneity of single layer
    TMDs cannot be compensated by the weak mutual interaction of bright excitons,
    hindering spin-valley transport. Nonetheless, the rich band structure of monolayer
    TMDs supports dark excitonic states with a permanent out-of-plane dipole, strong
    binding energy and long lifetime, ideally suited to overcome these challenges.
    Here we show that dark excitons can be used as sturdy information carriers due
    to their strong interaction that results in diffusion over several micrometers.
    Experiments conducted in engineered potential energy landscapes show that this
    repulsion-driven propagation is robust across non-uniform samples including over
    uphill energy landscapes, and that the information readout is mediated by chiral
    phonons. The long-range propagation of dark states provides a new concept of excitonic
    devices for applications in both classical and quantum information technology.
  description_type: abstract
  lang: und

## Creator

- name: Saroj B. Chand
  role: author
- name: John M. Woods
  role: author
- name: Jiamin Quan
  role: author
- name: Enrique Mejia
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Andrea Alù
  role: author
- name: Gabriele Grosso
  role: author

## Contact agent



## Publisher



## Managing organization



## Keyword

- subject: Quantum information technology
  schema: not_defined
- subject: excitonic quantum fluids
  schema: not_defined
- subject: dark excitons
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '14'
  issue: '1'
  article_number: '3712'

## Conference



## Related item



## Funding

- identifier: 64510-00 52
  funder_name: CUNY | Research Foundation of The City University of New York
- funder_name: CUNY | Graduate Center
- identifier: DMR-2044281
  funder_name: National Science Foundation

## 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: b9b90954-8dfe-4f16-ae77-61f802655df9
  filename: s41467-023-39339-y.pdf
  content_type: application/pdf
  size: 2662839
  md5: 78b89c65fee81bc93329907bf856a750

## Thumbnail

fileset_id: b9b90954-8dfe-4f16-ae77-61f802655df9
filename: s41467-023-39339-y.pdf