# Charge transport in single polymer fiber transistors in the sub-100 nm regime: temperature dependence and Coulomb blockade

https://mdr.nims.go.jp/datasets/a5a498f8-4cf4-401d-8f70-c477b395a45b

## File

- [Lenz_2023_J._Phys._Mater._6_015001.pdf](https://mdr.nims.go.jp/filesets/4efbf168-25a7-4f2f-8a68-ef8eb13c9560/download) ([Detail](https://mdr.nims.go.jp/filesets/4efbf168-25a7-4f2f-8a68-ef8eb13c9560.md))

## Id

a5a498f8-4cf4-401d-8f70-c477b395a45b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-25T05:50:09.422635Z

## Updated at

2025-02-26T03:30:40.642276Z

## Published at

2025-02-26T03:30:40.728324Z

## Doi



## First published url

https://doi.org/10.1088/2515-7639/aca82f

## Date published

2023-01-01

## Recorded date published

2023-1-1

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: 'Charge transport in single polymer fiber transistors in the sub-100 nm regime:
    temperature dependence and Coulomb blockade'
  title_type: original
  lang: en

## Description

- description: Even though charge transport in semiconducting polymers is of relevance
    for a number of potential applications in (opto-)electronic devices, the fundamental
    mechanism of how charges are transported through organic polymers that are typically
    characterized by a complex nanostructure is still open. One of the challenges
    which we address here, is how to gain experimental access to charge transport
    at the sub 50 nm lengthscale in a controlled fashion. To this end charge transport
    in single poly(diketopyrrolopyrrole-terthiophene) (PDPP) fiber transistors, employing
    two different solid gate dielectrics, a hybrid Al2O3/self-assembled monolayer
    (SAM) and hexagonal boron nitride (hBN), is investigated in the sub 50 nanometer
    regime using electron-beam contact patterning. The electrical characteristics
    exhibit near ideal behavior at room temperature which demonstrate the general
    feasibility of the nanoscale contacting approach, even though the channels are
    only few nm in width. At low temperatures, we observe nonlinear behavior in the
    current-voltage characteristics in the form of Coulomb diamonds which can be explained
    by the formation of an array of multiple quantum dots at cryogenic temperatures.
  description_type: abstract
  lang: und

## Creator

- name: Jakob Lenz
  role: author
- name: Martin Statz
  role: author
- name: K Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: T Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: Frank Ortmann
  role: author
- name: R Thomas Weitz
  role: author

## Contact agent



## Publisher

organization: IOP Publishing

## Managing organization



## Keyword

- subject: Charge transport
  schema: not_defined
- subject: semiconducting polymers
  schema: not_defined
- subject: Coulomb diamonds
  schema: not_defined

## Rights

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

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: 'Journal of Physics: Materials'
  issn: '25157639'
  volume: '6'
  issue: '1'
  article_number: '015001'

## Conference



## Related item



## Funding

- identifier: KAKENHI (Grant Numbers 19H05790 and 20H00354)
  funder_name: Japan Society for the Promotion of Science
- funder_name: Center for NanoScience, Ludwig-Maximilians-Universität München
- funder_name: Solar Technologies go Hybrid
- identifier: EXC 2089 /1−390776260 (e-conversion)
  funder_name: Deutsche Forschungsgemeinschaft

## 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



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## Custom property



## Fileset

- id: 4efbf168-25a7-4f2f-8a68-ef8eb13c9560
  filename: Lenz_2023_J._Phys._Mater._6_015001.pdf
  content_type: application/pdf
  size: 2621671
  md5: 87e4660bc5f49430a7164783066887f0

## Thumbnail

fileset_id: 4efbf168-25a7-4f2f-8a68-ef8eb13c9560
filename: Lenz_2023_J._Phys._Mater._6_015001.pdf