The Investigation of Ag-TiO₂-Ti as possible surface enhanced Raman spectroscopy substrate

Authors

Armando S. Somintac ⋅ PH National Institute of Physics, University of the Philippines Diliman
Jamie P. Mendoza ⋅ PH Material Science and Engineering Program, University of the Philippines Diliman

Abstract

The possibility of using silver nanoparticles photochemically deposited on TiO₂ nanotubes produced on Ti foil using electrochemical anodization as a Surface Enhanced Raman Spectroscopy Substrates was investigated. Analysis of the Ag-TiO₂ substrates showed spot to spot variation of the Raman intensities which can be attributed to the presence of hot spots on the surface. The highest Raman intensity was obtained from the substrate with 5 minutes deposition of silver. This substrate was then exposed to methylene blue and the resulting Raman spectra showed characteristic peaks of the dye. The fabricated Ag-TiO₂ substrates have the potential of being SERS active substrates.

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Issue

2015: Proceedings of the 33rd Samahang Pisika ng Pilipinas Physics Congress

Article ID

SPP-2015-PB-16

Section

Poster Session PB

Published

2015-06-03

How to Cite

[1]

AS Somintac and JP Mendoza, The Investigation of Ag-TiO2-Ti as possible surface enhanced Raman spectroscopy substrate, Proceedings of the Samahang Pisika ng Pilipinas 33, SPP-2015-PB-16 (2015). URL: https://proceedings.spp-online.org/article/view/1222.