Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/144926
Title: Reliable fabrication of high aspect ratio plasmonic nanostructures based on seedless pulsed electrodeposition
Authors: Mueller, Aaron David
Tobing, Landobasa Yosef Mario
Zhang, Dao Hua
Keywords: Engineering::Electrical and electronic engineering
Issue Date: 2018
Source: Mueller, A. D., Tobing, L. Y. M., & Zhang, D. H. (2019). Reliable fabrication of high aspect ratio plasmonic nanostructures based on seedless pulsed electrodeposition. Advanced Materials Technologies, 4(1), 1800364-. doi:10.1002/admt.201800364
Journal: Advanced Materials Technologies
Abstract: Strong plasmonic resonance in the visible spectrum requires high aspect ratio metallic resonators with deep subwavelength dimensions, which find applications as part of a cost-effective and practical optics-based sensing platform. Electrodeposition is a highly suitable method for fabricating such structures as it allows deposition of metals with much larger thickness and better morphology than that achieved by physical deposition. Herein are presented an in-depth study of pulsed electrodeposition of a gold film directly onto a transparent substrate without a seed layer and the development of a reliable and efficient fabrication method for high aspect ratio metallic nanostructures with sub-10 nm features. Based on this approach, a low-cost fabrication of sub-100 nm metallic nanostructures is demonstrated with a very high deposition rate (up to 7 nm per pulse), yet with good surface morphology. Specifically, high aspect ratio rotationally symmetric plasmonic nanostructures suitable for a practical sensing platform are realized, exhibiting strong resonances in the visible spectrum with Q factors as high as 10 under unpolarized excitation.
URI: https://hdl.handle.net/10356/144926
ISSN: 2365-709X
DOI: 10.1002/admt.201800364
Rights: This is the accepted version of the following article: Mueller, A. D., Tobing, L. Y. M., & Zhang, D. H. (2019). Reliable fabrication of high aspect ratio plasmonic nanostructures based on seedless pulsed electrodeposition. Advanced Materials Technologies, 4(1), 1800364-, which has been published in final form at http://dx.doi.org/10.1002/admt.201800364. This article may be used for non-commercial purposes in accordance with the Wiley Self-Archiving Policy [https://authorservices.wiley.com/authorresources/Journal-Authors/licensing/self-archiving.html].
Fulltext Permission: open
Fulltext Availability: With Fulltext
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