Publication result detail

Scanning Enhancement of STM-tungsten Probes by Applying Colloidal Graphite Coatings

KOŠELOVÁ, Z.; BURDA, D.; ALLAHAM, M.; KNÁPEK, A.

Original Title

Scanning Enhancement of STM-tungsten Probes by Applying Colloidal Graphite Coatings

English Title

Scanning Enhancement of STM-tungsten Probes by Applying Colloidal Graphite Coatings

Type

Paper in proceedings (conference paper)

Original Abstract

Tungsten cold field emission nanotips are known for their excellent performance as scanning tunneling microscopy (STM) probes. However, their performance is limited when the STM scan is performed in ambient gas pressure, or without in-situ cleaning of the tip. As a reasonable solution for this problem, tungsten nano tip of nm in diameter was coated by a layer of conductive graphite paint. The graphite paint was diluted by isopropanol to ensure the creation of a thin graphenic film on the nanotip apex. This process produced a tungsten-graphite composite probe of enhanced conductivity when compared to the oxidized tungsten tip, performing STM scans outside ultra-high vacuum environments.

English abstract

Tungsten cold field emission nanotips are known for their excellent performance as scanning tunneling microscopy (STM) probes. However, their performance is limited when the STM scan is performed in ambient gas pressure, or without in-situ cleaning of the tip. As a reasonable solution for this problem, tungsten nano tip of nm in diameter was coated by a layer of conductive graphite paint. The graphite paint was diluted by isopropanol to ensure the creation of a thin graphenic film on the nanotip apex. This process produced a tungsten-graphite composite probe of enhanced conductivity when compared to the oxidized tungsten tip, performing STM scans outside ultra-high vacuum environments.

Keywords

colloidal graphite; tungsten-graphite STM probes; cold field emission cathodes in STM

Key words in English

colloidal graphite; tungsten-graphite STM probes; cold field emission cathodes in STM

Authors

KOŠELOVÁ, Z.; BURDA, D.; ALLAHAM, M.; KNÁPEK, A.

RIV year

2025

Released

04.09.2024

Publisher

IEEE

Location

NEW YORK

ISBN

979-8-3503-7976-1

Book

International Vacuum Nanoelectronics Conference

Pages from

1

Pages to

2

Pages count

2

URL

https://ieeexplore.ieee.org/document/10652266

BibTex

@inproceedings{BUT197348,
  author="Mohammad Mahmoud Mohammad {Allaham} and Zuzana {Košelová} and Daniel {Burda} and Alexandr {Knápek}",
  title="Scanning Enhancement of STM-tungsten Probes by Applying Colloidal Graphite Coatings",
  booktitle="International Vacuum Nanoelectronics Conference",
  year="2024",
  pages="1--2",
  publisher="IEEE",
  address="NEW YORK",
  doi="10.1109/IVNC63480.2024.10652266",
  isbn="979-8-3503-7976-1",
  url="https://ieeexplore.ieee.org/document/10652266"
}