Journal
PLASMONICS
Volume 11, Issue 5, Pages 1279-1283Publisher
SPRINGER
DOI: 10.1007/s11468-015-0172-3
Keywords
Hollowed Ag nanostructure; Twin defect; Electrodeposition; SERS; Reproducibility
Funding
- National Basic Research Program of China (973 Program) [2007CB613403]
- Foundation of the scientific research base development (Engineering Research Center of the Education Ministry for the Surface and Structure Modification of Inorganic functional Materials) [KYJD09014]
- UoN-ZJU partnership grant joint project [9201030000106001]
- Key Science and Technology Innovation Team of Zhejiang Province [2010R50013]
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Hollowed Ag nanostructures are, for the first time, electrodeposited on ITO glass without use of surfactant. The hollowed Ag nanostructure was investigated via a collaboration of scanning electron microscopy (SEM), XRD, X-ray photoelectron spectroscopy (XPS), high-resolution transmission electron microscopy (HRTEM), XRD, and UV-vis. Results exhibited that the formation of the hollowed Ag nanostructure can be interpreted as the synergy effect of twin defect and low nucleation driving force. Surface-enhanced Raman scattering (SERS) spectra of rhodamine 6G and adenine molecules adsorbed on the surface of these Ag nanostructures were recorded. The smallest RSD of 1651 cm(-1) Raman bands of rhodamine 6G was 14.7 %, indicating that the hollowed Ag nanostructures can be utilized for reproducible SERS application. Through comparison, it was found the good crystallinity was beneficial for SERS.
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