# Direct observation of ultrafast singlet exciton fission in three dimensions

https://mdr.nims.go.jp/datasets/c465803d-256f-43c7-b1e2-8fcadb30604d

## File

- [s41467-022-33647-5.pdf](https://mdr.nims.go.jp/filesets/fc36f60e-503c-4956-8541-4b8e72142a43/download) ([Detail](https://mdr.nims.go.jp/filesets/fc36f60e-503c-4956-8541-4b8e72142a43.md))

## Id

c465803d-256f-43c7-b1e2-8fcadb30604d

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-26T08:29:41.541205Z

## Updated at

2025-02-27T07:30:54.763033Z

## Published at

2025-02-27T07:30:54.833068Z

## Doi



## First published url

https://doi.org/10.1038/s41467-022-33647-5

## Date published

2022-10-10

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Direct observation of ultrafast singlet exciton fission in three dimensions
  title_type: original
  lang: en

## Description

- description: We present ultrafast quantitative interferometric pump-probe microscopy
    capable of tracking of photoexcitations in three dimensions with sub 5 nm spatial
    precision through retrieval of the full photoinduced transient complex refractive
    index with 15 fs temporal resolution. Using this we inves- tigate the quantum
    coherent photophysical process of ultrafast singlet exciton fission. Measurements
    on microcrystalline pentacene films grown on glass (SiO2) and boron nitride (hBN)
    reveal a 25 nm, 70 fs expansion of the joint-density-of-states along the crystal
    a,c-axes accompanied by a 6 nm, 115 fs contraction along the crystal b-axis. We
    propose that photogenerated singlet excitons un- dergo fission to correlated triplets
    pairs along the crystal a,c-axes within 70 fs and are subsequently decoupled into
    free-triplets along the crystal b-axes within 200 fs.
  description_type: abstract
  lang: und

## Creator

- name: Arjun Ashoka
  role: author
- name: Nicolas Gauriot
  role: author
- name: Aswathy V. Girija
  role: author
- name: Nipun Sawhney
  role: author
- name: Alexander J. Sneyd
  role: author
- 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: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Jooyoung Sung
  role: author
- name: Christoph Schnedermann
  role: author
- name: Akshay Rao
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Ultrafast interferometric microscopy
  schema: not_defined
- subject: singlet exciton fission
  schema: not_defined
- subject: quantum coherent photophysical process
  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: '13'
  issue: '1'
  article_number: '5963'

## Conference



## Related item



## Funding



## 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: fc36f60e-503c-4956-8541-4b8e72142a43
  filename: s41467-022-33647-5.pdf
  content_type: application/pdf
  size: 3856127
  md5: 541297e2f567ce3c9af0034a70a7c20e

## Thumbnail

fileset_id: fc36f60e-503c-4956-8541-4b8e72142a43
filename: s41467-022-33647-5.pdf