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Updated: Jun 13, 2026
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Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography
Published on: September 2, 2017
Strings of metal half-shells fabricated using colloidal particle monolayer as a template
Yoshiro Imura1, Masanori Kato, Takeshi Kondo
1Department of Industrial Chemistry, Tokyo University of Science, 1-3 Kagurazaka, Shinjuku-ku, Tokyo 162-8601, Japan.
Langmuir : the ACS Journal of Surfaces and Colloids
|April 17, 2010
Summary
Researchers created one-dimensional (1-D) metal shell strings using a polystyrene (PS) particle template. Optimal results were achieved with gold (Au) shells, while chromium (Cr) and silver (Ag) formed different structures.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Science
Background:
- Two-dimensional (2-D) particle monolayers serve as templates for nanostructure fabrication.
- Controlling the dimensionality of deposited materials is crucial for advanced applications.
Purpose of the Study:
- To investigate the fabrication of one-dimensional (1-D) metal shell strings.
- To explore the influence of deposition parameters and metal type on shell formation.
Main Methods:
- Utilizing a 2-D polystyrene (PS) particle monolayer as a template.
- Employing vacuum evaporation for metal deposition.
- Controlling the tilt angle (theta) of the PS monolayer during deposition.
Main Results:
- Successfully fabricated 1-D strings of fan-shaped gold (Au) shells under specific tilt angles and deposition thicknesses.
- Observed that chromium (Cr) deposition resulted in 2-D films.
- Noted that silver (Ag) deposition led to the formation of half-shell dots, not 1-D strings.
Conclusions:
- The fabrication of 1-D metal shell strings is feasible using PS particle templates.
- The formation of 1-D strings is highly dependent on the metal type, deposition thickness, and tilt angle.
- Gold (Au) is a suitable metal for creating 1-D strings with this method, unlike Cr and Ag.
