# Electroluminescence from a phthalocyanine monolayer encapsulated in a van der Waals tunnel diode

https://mdr.nims.go.jp/datasets/6111bfab-9700-4d2c-bd14-6065e5f599f3

## File

- [Electroluminescence from a phthalocyanine monolayer encapsulated in a van der Waals tunnel diode.pdf](https://mdr.nims.go.jp/filesets/58023a7e-705a-4f54-81b6-715c5a7049a3/download) ([Detail](https://mdr.nims.go.jp/filesets/58023a7e-705a-4f54-81b6-715c5a7049a3.md))

## Id

6111bfab-9700-4d2c-bd14-6065e5f599f3

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-14T04:33:50.732151Z

## Updated at

2025-02-14T07:30:38.856624Z

## Published at

2025-02-14T07:30:38.957827Z

## Doi



## First published url

https://doi.org/10.1080/00268976.2023.2197081

## Date published

2023-04-18

## Recorded date published

2023-4-18

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Electroluminescence from a phthalocyanine monolayer encapsulated in a van
    der Waals tunnel diode
  title_type: original
  lang: en

## Description

- description: Phthalocyanine monolayers are grown on monolayer and few-layer exfoliated
    flakes of hexag-onal boron nitride (hBN) which are subsequently integrated into
    a van der Waals tunnel diode. This heterostructure consists of two thin hBN flakes
    between which the Pc monolayer is sand-wiched and also incorporates upper and
    lower few layer graphene contacts. When a voltage is applied between the contacts,
    a tunnel current flows and the embedded molecules can be ex-cited resulting in
    the emission of photons with wavelengths which are close to the peaks ob-served
    in photoluminescence. We also observe electroluminescence at voltages where the
    en-ergy gained by a tunnelling electron is lower than the energy of the emitted
    photon implying a multi-electron excitation pathway which we attribute to the
    formation of an intermediate tri-plet state. Our results provide insights into
    the differences in excitation and relaxation of mole-cules in supramolecular monolayers
    and bulk crystals and we discuss how the alignment of the energy levels of the
    molecules and contact layers determine the emission process.
  description_type: abstract
  lang: und

## Creator

- name: Tyler James
  role: author
- name: Jonathan Bradford
  role: author
- name: James Kerfoot
  role: author
- name: Vladimir V. Korolkov
  role: author
- name: Manal Alkhamisi
  role: author
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Anton S. Nizovtsev
  role: author
- name: Elisa Antolín
  role: author
- name: Elena Besley
  role: author
- name: Simon A. Svatek
  role: author
- name: Peter H. Beton
  role: author

## Contact agent



## Publisher

organization: Informa UK Limited

## Managing organization



## Keyword

- subject: Phthalocyanine
  schema: not_defined
- subject: hexagonal boron nitride
  schema: not_defined
- subject: electroluminescence
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Molecular Physics
  issn: '00268976'
  volume: '121'
  issue: 7-8
  article_number: e2197081

## Conference



## Related item



## Funding

- identifier: EP/N033906/1
  funder_name: Engineering and Physical Sciences Research Council
- identifier: grant numbers 19H05790, 20H00354 and 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: RF2019-460
  funder_name: The Leverhulme Trust

## 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: 58023a7e-705a-4f54-81b6-715c5a7049a3
  filename: Electroluminescence from a phthalocyanine monolayer encapsulated in a
    van der Waals tunnel diode.pdf
  content_type: application/pdf
  size: 3117351
  md5: c3e07dd9438607663757260c9d5cd600

## Thumbnail

fileset_id: 58023a7e-705a-4f54-81b6-715c5a7049a3
filename: Electroluminescence from a phthalocyanine monolayer encapsulated in a van
  der Waals tunnel diode.pdf