Abstract
Large-area and uniform plasmonic nanostructures have often been fabricated by simply evaporating noble metals such as gold and silver on a variety of nanotemplates such as nanopores, nanotubes, and nanorods. However, some highly uniform nanotemplates are limited to be utilized by long, complex, and expensive fabrication. Here, we introduce a cost-effective and high-throughput fabrication method for plasmonic interference coupled nanostructures based on quasi-uniform anodic aluminum oxide (QU-AAO) nanotemplates. Industrial aluminum, with a purity of 99.5%, and copper were used as a base template and a plasmonic material, respectively. The combination of these modifications saves more than 18 h of fabrication time and reduces the cost of fabrication 30-fold. From optical reflectance data, we found that QU-AAO based plasmonic nanostructures exhibit similar optical behaviors to highly ordered (HO) AAO-based nanostructures. By adjusting the thickness of the AAO layer and its pore size, we could easily control the optical properties of the nanostructures. Thus, we expect that QU-AAO might be effectively utilized for commercial plasmonic applications.
Original language | English |
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Article number | 420 |
Journal | Coatings |
Volume | 9 |
Issue number | 7 |
DOIs | |
Publication status | Published - 2019 |
Bibliographical note
Funding Information:Author Contributions: Conceptualization, D.L. and D.C.; Methodology, Y.B., D.L. and D.C.; Software, Y.B.; Draft Preparation, D.C.; Writing—Review and Editing, D.C.; Visualization, J.Y. and Y.J.; Supervision, D.L. and Validation, D.L. and D.C.; Formal Analysis, Y.B.; Investigation, J.Y. and Y.J.; Data Curation, Y.B.; Writing— Original Draft Preparation, D.C.; Writing—Review and Editing, D.C.; Visualization, J.Y. and Y.J.; Supervision, Funding: This research was funded by National Research Foundation of Korea (2017R1A2B2008419) and Korea D.L. and D.C.; Project Administration, D.C.; Funding Acquisition, D.L. and D.C. University Future Research Grant (K1720551). Funding: This research was funded by National Research Foundation of Korea (2017R1A2B2008419) and Korea University Future Research Grant (K1720551).
Publisher Copyright:
© 2019 by the authors.
Keywords
- Anodic aluminum oxide
- Cost-effective
- High-throughput
- Nanoplasmonics
- Optical interference
- Quasi-uniform
ASJC Scopus subject areas
- Surfaces and Interfaces
- Surfaces, Coatings and Films
- Materials Chemistry