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 47, 2013
Previous Article Next Article

Multi-hot spot configuration on urchin-like Ag nanoparticle/ZnO hollow nanosphere arrays for highly sensitive SERS

Author affiliations

Abstract

Urchin-like Ag nanoparticle (NP)/ZnO hollow nanosphere (HNS) arrays were fabricated employing a simple, low cost and wafer scale method consisting of nanosphere lithography (NSL) and solution processes. This three-dimensional (3D) multi-hot spot decorated nanocomposite presents an as high as 108 Raman enhancement using Rhodamine 6G (R6G) as the probe with the concentration down to 10−10 M. The high density hot spots in a unit area and strong field intensity around each individual hot spot in 3D layout are believed to be the major reasons for this high sensitivity Raman phenomenon, which is further proved by the theoretical simulation results. Given its high Raman sensitivity and good reproducibility in a large area, this urchin-like Ag NP/ZnO HNS hybrid nanoarray can be reasonably proposed to be used as a SERS substrate in practical applications, including bio-sensing, materials characterization, environmental science and so on.

Graphical abstract: Multi-hot spot configuration on urchin-like Ag nanoparticle/ZnO hollow nanosphere arrays for highly sensitive SERS

Back to tab navigation

Supplementary files

Article information


Submitted
30 Aug 2013
Accepted
14 Oct 2013
First published
15 Oct 2013

J. Mater. Chem. A, 2013,1, 15010-15015
Article type
Paper

Multi-hot spot configuration on urchin-like Ag nanoparticle/ZnO hollow nanosphere arrays for highly sensitive SERS

X. He, C. Yue, Y. Zang, J. Yin, S. Sun, J. Li and J. Kang, J. Mater. Chem. A, 2013, 1, 15010
DOI: 10.1039/C3TA13450D

Social activity

Search articles by author

Spotlight

Advertisements