Direct Electrodeposition of Hollowed Ag Nanostructures on ITO Glass for Reproducible SERS Application

被引:2
|
作者
Cheng, Xudong [1 ,2 ]
Bian, Juncao [1 ,2 ]
Huang, Zhengfeng [1 ,2 ]
Zhang, Zhaoguo [1 ,2 ]
Dong, Peimei [1 ,2 ]
Wang, Qingli [1 ,2 ]
Chen, Yi [1 ,2 ]
Zhang, Yanzhao [1 ,2 ]
Zhang, Xiwen [1 ,2 ]
机构
[1] Zhejiang Univ, State Key Lab Silicon Mat, Hangzhou 310027, Zhejiang, Peoples R China
[2] Zhejiang Univ, Dept Mat Sci & Engn, Hangzhou 310027, Zhejiang, Peoples R China
关键词
Hollowed Ag nanostructure; Twin defect; Electrodeposition; SERS; Reproducibility; ENHANCED RAMAN-SCATTERING; SILVER; NANOPARTICLES; RESONANCE; SPECTROSCOPY; SHAPES; FILM;
D O I
10.1007/s11468-015-0172-3
中图分类号
O64 [物理化学(理论化学)、化学物理学];
学科分类号
070304 ; 081704 ;
摘要
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.
引用
收藏
页码:1279 / 1283
页数:5
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