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Title: Seed-mediated plasmon-driven regrowth of silver NanoDecahedrons (NDs)
Authors: Lu, Haifei
Zhang, Haixi
Yu, Xia
Zeng, Shuwen
Yong, Ken-Tye
Ho, Ho-Pui
Keywords: DRNTU::Engineering::Electrical and electronic engineering
Issue Date: 2011
Source: Lu, H., Zhang, H., Yu, X., Zeng, S., Yong, K.-T., & Ho, H.-P. (2012). Seed-mediated Plasmon-driven Regrowth of Silver Nanodecahedrons (NDs). Plasmonics, 7(1), 167-173.
Series/Report no.: Plasmonics
Abstract: We report the synthesis of silver nanodecahedrons (NDs) for extending the localized surface plasmon resonance (LSPR) of silver nanostructures from blue to green-orange (~590 nm), which will enable much wider application opportunities using common laser light sources. In our photo-assisted method, we use a light-emitting-diode (LED) to control regrowth of silver ND from precursor seeds. Highly uniform silver NDs are synthesized when the LED emission peak coincides with the LSPR peak of the seeds. A two-step process involving precursor self-transformation into silver nanoprisms and nanoplates, and subsequent photo-activated regrowth of silver NDs has been proposed. Surface-enhanced Raman scattering of silver NDs in different sizes has been studied, and the average enhancement factor for each size is estimated to be in the order of ~10^6.
ISSN: 1557-1955
DOI: 10.1007/s11468-011-9290-8
Rights: © 2011 Springer Science+Business Media, LLC.
Fulltext Permission: none
Fulltext Availability: No Fulltext
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