Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/99340
Title: Surface-enhanced Raman scattering of Ag–Au nanodisk heterodimers
Authors: Liusman, Cipto
Li, Hai
Lu, Gang
Wu, Jumiati
Boey, Freddy Yin Chiang
Li, Shuzhou
Zhang, Hua
Issue Date: 2012
Source: Liusman, C., Li, H., Lu, G., Wu, J., Boey, F., Li, S., et al. (2012). Surface-Enhanced Raman Scattering of Ag–Au Nanodisk Heterodimers. The Journal of Physical Chemistry C, 116(18), 10390-10395.
Series/Report no.: The journal of physical chemistry C
Abstract: We report the fabrication of Ag–Au nanodisk heterodimers based on the modified on-wire lithography method and study their surface-enhanced Raman scattering (SERS) properties experimentally and theoretically. The effects of disk thickness and gap size on SERS are explored. The SERS properties of the optimized heterodimers are compared with those of the respective homodimers and single nanodisks excited at 633 and 488 nm. We found that the enhancement factor (EF) of Ag–Au heterodimers is greater at 633 nm than that at 488 nm, while their EF is between those of the Ag–Ag and Au–Au homodimers. At 488 nm excitation, the calculation indicates that the plasmon energy can be transferred from the Ag disk to the Au disk.
URI: https://hdl.handle.net/10356/99340
http://hdl.handle.net/10220/17236
DOI: 10.1021/jp301739a
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:MSE Journal Articles

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