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Updated: May 18, 2026
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Fabrication of Periodic Gold Nanocup Arrays Using Colloidal Lithography
Published on: September 2, 2017
Ordered arrays of nanoporous gold nanoparticles
Dong Wang1, Ran Ji, Arne Albrecht
1Chair Materials for Electronics, Institute of Materials Engineering and Institute of Micro- and Nanotechnologies MacroNano®, Ilmenau University of Technology, POB 10 05 65, 98684 Ilmenau, Germany.
Beilstein Journal of Nanotechnology
|September 29, 2012
Summary
Researchers created ordered 2D nanoporous gold nanoparticle arrays using imprint lithography, dewetting, and dealloying. This method allows precise control over nanoparticle size and spacing for large-area material fabrication.
Area of Science:
- Materials Science
- Nanotechnology
- Surface Science
Background:
- Fabricating ordered nanoporous materials is challenging.
- Controlling nanoparticle size and arrangement is crucial for advanced applications.
Purpose of the Study:
- To develop a scalable method for producing ordered 2D arrays of nanoporous gold nanoparticles.
- To demonstrate control over nanoparticle dimensions and array periodicity.
Main Methods:
- Utilized substrate-conformal imprint lithography for prepatterning.
- Employed dewetting of gold/silver bilayers to form alloy nanoparticles.
- Applied dealloying to transform alloy nanoparticles into nanoporous gold structures.
Main Results:
- Achieved perfectly ordered 2-dimensional arrays of nanoporous gold nanoparticles.
- Demonstrated control over particle size, spacing, and pore size.
- Enabled large-area fabrication of these nanostructured materials.
Conclusions:
- The combined top-down and bottom-up approach is effective for creating tunable nanoporous gold nanoparticle arrays.
- This technique offers a pathway for scalable manufacturing of advanced nanomaterials.
