Perforated nanocap array: Facile fabrication process and efficient surface enhanced Raman scattering with fluorescence suppression |
| |
| Authors: | Wang Jun Huang Li-Qing Tong Hui-Min Zhai Li-Peng Yuan Lin Zhao Li-Hua Zhang Wei-Wei Shan Dong-Zhi Hao Ai-Wen and Feng Xue-Hong |
| |
| Affiliation: | Non-equilibrium Condensed Matter and Quantum Engineering Laboratory, School of Science, Xi’an Jiaotong University, Xi’an 710049, China |
| |
| Abstract: | Recently, individual reduced-symmetry metal nanostructures and their plasmonic properties have been studied extensively. However, little attention has been paid to the approach to fabricating ordered reduced-symmetry metal nanostructure arrays. In this paper, a novel perforated silver nanocap array with high surface-enhanced Raman scattering (SERS) activity and fluorescence suppression is reported. The array is fabricated by electron beam evaporating Ag onto the perforated barrier layer side of a hard anodization (HA) anodic aluminum oxide (AAO) template. The morphology and optical property of the perforated silver nanocap array are characterized by an atomic force microscope (AFM), a scanning electron microscope (SEM), and absorption spectra. The results of SERS measurements reveal that the perforated silver nanocap array offers high SERS activity and fluorescence suppression compared with an imperforated silver nanocap array. |
| |
| Keywords: | reduced-symmetry structures perforated nanocap array surface-enhanced Raman scattering anodic aluminum oxide |
| 本文献已被 CNKI 等数据库收录！ |
|
