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Updated: Feb 25, 2026

Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography

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Published on: September 2, 2017

Fabricating ordered 2-D nano-structured arrays using nanosphere lithography.

Chenlong Zhang^1,2, Sandra Cvetanovic², Joshua M Pearce^1,2

¹Department of Materials Science & Engineering, Michigan Technological University, Houghton, MI, USA.

|August 3, 2017

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Two methods for fabricating ordered nanosphere films, spin coating and interface coating, are compared for use in plasmonic metamaterials for solar cells. Interface coating offers better uniformity for larger nanospheres, enabling scalable, high-coverage patterning.

Area of Science:

Materials Science
Nanotechnology
Renewable Energy

Background:

Plasmonic metamaterials enhance light absorption in thin-film solar photovoltaic devices.
Scalable, ordered patterning of metal nanostructures is crucial for fabricating these metamaterials.
Ordered 2D nanosphere colloidal films are key for nanosphere lithography.

Purpose of the Study:

To compare two methods for fabricating ordered 2D nanosphere colloidal films: spin coating and interface coating.
To optimize parameters for scalable, large-area patterning of nanostructures.
To develop a surfactant-free method for contaminant-free colloidal films.

Main Methods:

Fabrication of ordered 2D nanosphere colloidal films using spin coating.
Fabrication of ordered 2D nanosphere colloidal films using angled interface coating.

Keywords:

Dip coating Metamaterial Microsphere lithography Nanosphere Nanosphere lithography Photovoltaic Plasmonic Spin coating Synthesis

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Parameter optimization and comparison of the two coating methods.

Main Results:

Spin coating is more favorable for smaller nanosphere sizes.
Angled interface coating provides better coverage and uniformity for larger nanospheres.
A surfactant-free interface coating method yields zero-contamination colloidal films.
Both methods achieve over 90% coverage for nanosphere lithography.

Conclusions:

Both spin coating and interface coating are effective for fabricating ordered nanosphere films.
Method selection depends on nanosphere size for optimal coverage and uniformity.
These scalable methods facilitate the production of plasmonic metamaterials for solar energy applications.