# Strong quenching of dye fluorescence in monomeric perylene orange/TMDC hybrid structures

https://mdr.nims.go.jp/datasets/c50eab6b-a0ab-4f25-9ca8-291fb8007a88

## File

- [d3na00276d.pdf](https://mdr.nims.go.jp/filesets/40b539d4-c613-488a-b061-71f0463a2a18/download) ([Detail](https://mdr.nims.go.jp/filesets/40b539d4-c613-488a-b061-71f0463a2a18.md))

## Id

c50eab6b-a0ab-4f25-9ca8-291fb8007a88

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T06:56:03.760196Z

## Updated at

2025-02-15T03:30:38.084755Z

## Published at

2025-02-15T03:30:38.203443Z

## Doi



## First published url

https://doi.org/10.1039/d3na00276d

## Date published

2023-05-22

## Recorded date published

2023-6-13

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Strong quenching of dye fluorescence in monomeric perylene orange/TMDC hybrid
    structures
  title_type: original
  lang: en

## Description

- description: Hybrid structures with an interface between two different materials
    with properly aligned energy levels facilitate photo-induced charge separation
    to be exploited in opto- electronic applications. Particularly, the combination
    of 2D transition metal dichalco- genides (TMDCs) and dye molecules offers strong
    light-matter interactions, tailorable band level alignments, and high fluorescence
    quantum yields. In this work, we aim at the charge transfer-related quenching
    of the fluorescence of the dye perylene orange (PO) when coated onto 2D materials.
    To that end, we established multiple techniques for monomer deposition, proposing
    a stamping approach as a solution-based entry into the preparation of hybrid structures
    for the 2D community and thermal vapor deposition (TVD) as a vacuum-based method
    particularly suited for homogenous films in the sub-monolayer regime. In the latter
    case, scanning force microscopy reveals an increased step-height compared to pristine
    flakes, suggesting that PO creeps into the interface below the flake. Via TVD,
    we prepare hybrid structures of PO on monolayer TMDCs and hexagonal boron nitride
    (hBN) as a reference. Micro-photoluminescence spectroscopy indicates monomer behavior
    of the PO on both substrate and on hBN flakes, while on the TMDC surface, the
    fluorescence is quenched. This is further confirmed by fluorescence lifetime imaging
    microscopy, additionally providing information on the emission decay. In line
    with the drastic intensity drop by up to a factor of 103 compared to the hBN reference,
    a reduction of the fluorescence lifetime is observed, from 3 ns to values well
    below 100 ps. From the ratio of the intensity quenching that is attributed to
    charge transfer from dye to semiconductor, we deduce a transfer time of several
    picoseconds, pointing to an efficient charge separation suitable for optoelectronic
    devices.
  description_type: abstract
  lang: und

## Creator

- name: Tim Völzer
  role: author
- name: Alina Schubert
  role: author
- name: Erik von der Oelsnitz
  role: author
- name: Julian Schröer
  role: author
- name: Ingo Barke
  role: author
- name: Rico Schwartz
  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: Sylvia Speller
  role: author
- name: Tobias Korn
  role: author
- name: Stefan Lochbrunner
  role: author

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: Charge separation
  schema: not_defined
- subject: transition metal dichalcogenides
  schema: not_defined
- subject: dye molecules
  schema: not_defined

## Rights

- identifier: cc-by-nc-3.0

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Nanoscale Advances
  issn: '25160230'
  volume: '5'
  issue: '12'
  start_page: 3348
  end_page: 3356

## Conference



## Related item



## Funding

- identifier: SFB 1477 / 441234705
  funder_name: Deutsche Forschungsgemeinschaft
- identifier: KO 3612/7-1 / 467549803
  funder_name: Deutsche Forschungsgemeinschaft
- funder_name: Universität Rostock
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- identifier: 20H00354
  funder_name: Japan Society for the Promotion of Science

## Instrument



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## Measurement method



## Specimen



## Chemical composition



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## Fileset

- id: 40b539d4-c613-488a-b061-71f0463a2a18
  filename: d3na00276d.pdf
  content_type: application/pdf
  size: 2068868
  md5: 35d196bb1f49edfb21a7e18bedd248e3

## Thumbnail

fileset_id: 40b539d4-c613-488a-b061-71f0463a2a18
filename: d3na00276d.pdf