Fabrication of surface­enhanced raman scattering ­- sers ZnO nanostructured/ nano Ag for rhodamine 6gdetection

Abstract

In recent years, scientists have been focusing on ways to enhance Raman signals by surface plasmon resonance effect ­ SERS. This method allows detections of trace pesticide residues, because it helps identifying molecules at very low concentrations without destroying or discoloring samples. Therefore, the SERS method opens a new step in the study of physics, materials science, medical diagnostics, identification of new drugs, etc. In this study, nanostructured ZnO material were manufactured by DC magnetron sputtering method. The Ag nanoparticles were, then, modified on ZnO surface by DC magnetron sputtering method. The material was proved to be able to improve the detection of Rhodamine 6G reagent at trace levels. The enhancement factor of SERS was of more than 106.