Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 36, 2018
Previous Article Next Article

Superhydrophobic plasmonic nanoarchitectures based on aluminum hydroxide nanotemplates

Author affiliations

Abstract

The combined characteristics of non-wettabililty and strong plasmonic resonances make superhydrophobic plasmonic nanostructures an appealing tool for ultrasensitive detection in surface-enhanced Raman scattering (SERS). However, inducing superhydrophobic surfaces on originally hydrophilic metals (e.g., gold, silver) while achieving high plasmonic enhancement requires sophisticated surface engineering and often involves complex fabrication processes. In this article, we design and fabricate cost effective and scalable plasmonic nanostructures with both superhydrophobicity (a water contact angle >160°) and high SERS signal (enhancement factor ≈106). Silver-coated aluminum hydroxide nanotemplates are obtained from a simple wet process, followed by thermal evaporation of silver nanoparticles. We find that the largest SERS enhancement is obtained when the contact angle is maximum. This confirms that the control of surface wettability is an effective way to improve detection sensitivity in SERS measurements. The nanotemplates developed in this study could be applied further in various applications, including microfluidic biomolecular optical sensors, photocatalysts, and optoelectronic devices.

Graphical abstract: Superhydrophobic plasmonic nanoarchitectures based on aluminum hydroxide nanotemplates

Back to tab navigation

Supplementary files

Article information


Submitted
15 Jun 2018
Accepted
30 Aug 2018
First published
31 Aug 2018

Nanoscale, 2018,10, 17125-17130
Article type
Paper

Superhydrophobic plasmonic nanoarchitectures based on aluminum hydroxide nanotemplates

D. Yoon, S. Chae, W. Kim, D. Lee and D. Choi, Nanoscale, 2018, 10, 17125
DOI: 10.1039/C8NR04873H

Social activity

Search articles by author

Spotlight

Advertisements