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| Content Provider | Springer Nature Link |
|---|---|
| Author | Hu, Min Stickle, William F. Williams, R. Stanley Kuo, Huei Pei Tang, Jing Ou, Fung Suong Li, Zhiyong |
| Copyright Year | 2009 |
| Abstract | We created novel surface-enhanced Raman spectroscopy (SERS) substrates by metalization (Ag) of Si nanograss prepared by a Bosch process which involves deep reactive ion etching of single crystalline silicon. No template or lithography was needed for making the Si nanograss, thus providing a simple and inexpensive method to achieve highly sensitive large-area SERS substrates. The dependence of the SERS effect on the thickness of the metal deposition and on the surface morphology and topology of the substrate prior to metal deposition was studied in order to optimize the SERS signals. We observed that the Ag-coated Si nanograss can achieve uniform SERS enhancement over large area (∼1 cm ×1 cm) with an average EF (enhancement factor) of 4.2×108 for 4-mercaptophenol probe molecules. |
| Ending Page | 797 |
| Page Count | 5 |
| Starting Page | 793 |
| File Format | |
| ISSN | 09478396 |
| e-ISSN | 14320630 |
| Journal | Applied Physics A |
| Issue Number | 4 |
| Volume Number | 96 |
| Language | English |
| Publisher | Springer-Verlag |
| Publisher Date | 2009-06-27 |
| Publisher Place | Berlin, Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Operating Procedures, Materials Treatment Optical and Electronic Materials Characterization and Evaluation of Materials Condensed Matter Surfaces and Interfaces, Thin Films Nanotechnology |
| Content Type | Text |
| Resource Type | Article |
| Subject | Chemistry Materials Science |
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