Structural and Optical properties of HNO3 etched Ag thin films
Abstract
Structural and optical properties, elemental analysis of Ag thin films before and after etching were investigate by using XRD, UV-Vis spectrophotometer, Raman spectroscopy and FESEM. These films were found to exhibit a strong SERS effect and excellent thermal stability. The HNO3 roughened silver film seems to be a more routinely preparable substrate system for SERS study. The HNO3 roughened Ag thin films exhibits excellent stability for enhancement, because the acid roughened Ag films features a strong enhancement factor better stability than pure Ag thin films. Hence, the method will be useful in the development of plasmon-based analytical devices, specifically SERS-based biosensors.
- Publication:
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Materials Science and Engineering Conference Series
- Pub Date:
- February 2015
- DOI:
- 10.1088/1757-899X/73/1/012131
- Bibcode:
- 2015MS&E...73a2131R