Publication detail

Guided Assembly of Gold Colloidal Nanoparticles on Silicon Substrates Prepatterned by Charged Particle Beams

KOLÍBAL, M. KONEČNÝ, M. LIGMAJER, F. ŠKODA, D. VYSTAVĚL, T. ZLÁMAL, J. VARGA, P. ŠIKOLA, T.

Original Title

Guided Assembly of Gold Colloidal Nanoparticles on Silicon Substrates Prepatterned by Charged Particle Beams

Type

journal article in Web of Science

Language

English

Original Abstract

Colloidal gold nanoparticles represent technological building blocks which are easy to fabricate while keeping full control of their shape and dimensions. Here, we report on a simple two-step maskless process to assemble gold nanoparticles from a water colloidal solution at specific sites of a silicon surface. First, the silicon substrate covered by native oxide is exposed to a charged particle beam (ions or electrons) and then immersed in a HF-modified solution of colloidal nanoparticles. The irradiation of the native oxide layer by a low-fluence charged particle beam causes changes in the type of surface-terminating groups, while the large fluences induce even more profound modification of surface composition. Hence, by a proper selection of the initial substrate termination, solution pH, and beam fluence, either positive or negative deposition of the colloidal nanoparticles can be achieved

Keywords

nanoparticle adhesion; nanofabrication; dual beam, FIB; silicon; gold; self-assembly; selective growth; guided growth; surface potential

Authors

KOLÍBAL, M.; KONEČNÝ, M.; LIGMAJER, F.; ŠKODA, D.; VYSTAVĚL, T.; ZLÁMAL, J.; VARGA, P.; ŠIKOLA, T.

RIV year

2012

Released

25. 10. 2012

ISBN

1936-0851

Periodical

ACS Nano

Year of study

6

Number

11

State

United States of America

Pages from

10098

Pages to

10106

Pages count

9

BibTex

@article{BUT96403,
  author="Miroslav {Kolíbal} and Martin {Konečný} and Filip {Ligmajer} and David {Škoda} and Tomáš {Vystavěl} and Jakub {Zlámal} and Peter {Varga} and Tomáš {Šikola}",
  title="Guided Assembly of Gold Colloidal Nanoparticles on Silicon Substrates Prepatterned by Charged Particle Beams",
  journal="ACS Nano",
  year="2012",
  volume="6",
  number="11",
  pages="10098--10106",
  issn="1936-0851"
}