標題: Surface-Enhanced Raman Scattering Imaging of a Single Molecule on Urchin-like Silver Nanowires
作者: Hsiao, Wei-Han
Chen, Hsin-Yu
Yang, Yu-Cheng
Chen, Yu-Liang
Lee, Chi-Young
Chiu, Hsin-Tien
應用化學系
Department of Applied Chemistry
關鍵字: silver nanowires;galvanic reduction;surface-enhanced Raman spectroscopy;single-molecule detection;Rhodamine 6G
公開日期: 1-九月-2011
摘要: Urchin-like silver nanowires are prepared by reacting AgNO(3)(aq) with copper metal in the presence of cetyltrimethylammonium chloride and HNO(3)(aq) on a screen-printed carbon electrode at room temperature. The diameters of the nanowires are about 100 nm, and their lengths are up to 10 mu m. Using Raman spectroscopy, the detection limit of Rhodamine 6G (R6G) on the urchin-like silver nanowire substrate can be as low as 10(-16) M, while the analytical enhancement factor is about 10(13). Raman mapping images confirm that a single R6G molecule on the substrate can be detected.
URI: http://dx.doi.org/10.1021/am2007239
http://hdl.handle.net/11536/14794
ISSN: 1944-8244
DOI: 10.1021/am2007239
期刊: ACS APPLIED MATERIALS & INTERFACES
Volume: 3
Issue: 9
起始頁: 3280
結束頁: 3284
顯示於類別:期刊論文


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  1. 000295236900012.pdf