Chemically Tuning the Localized Surface Plasmon Resonances of Gold Nanostructure Arrays

Yue Bing Zheng, Linlin Jensen, Wei Yan, Thomas R. Walker, Bala Krishna Juluri, Lasse Jensen, Tony Jun Huang

Research output: Contribution to journalArticlepeer-review

64 Scopus citations


We report on chemical etching of ordered Au nanostructure arrays to continuously tune their localized surface plasmon resonances (LSPR). Real-time extinction spectra were recorded from both Au nanodisks and nanospheres immobilized on glass substrates when immersed in Au etchant. The time-dependent LSPR frequencies, intensities, and bandwidths were studied theoretically with discrete dipole approximations and the Mie solution, and they were correlated with the evolution of the etched Au nanostructures' morphology (as examined by atomic force microscopy). Since this chemical etching method can conveniently and accurately tune LSPR, it offers precise control of plasmonic properties and can be useful in applications such as surfaceenhanced Raman spectroscopy and molecular resonance spectroscopy. © 2009 American Chemical Society.
Original languageEnglish (US)
Pages (from-to)7019-7024
Number of pages6
JournalThe Journal of Physical Chemistry C
Issue number17
StatePublished - Apr 6 2009
Externally publishedYes

Bibliographical note

KAUST Repository Item: Exported on 2020-10-01
Acknowledgements: This research was supported by the Air Force Office of Scientific Research (FA9550-08-1-0349), the National Science Foundation (ECCS-0801922 and ECCS-0609128), and the Penn State Center for Nanoscale Science (MRSEC). Y.B.Z. acknowledges the Founder's Prize and Grant of the American Academy of Mechanics from the Robert M. and Mary Haythornthwaite Foundation and the KAUST Scholarship. Components of this work were conducted at the Pennsylvania State University node of the NSF-funded National Nanotechnology Infrastructure Network.
This publication acknowledges KAUST support, but has no KAUST affiliated authors.


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