Synthesis and SERS activity of V2O5 nanoparticles

- V2O5 nanoparticles (NPs) of different sizes have been synthesized.
- SERS activity of R6G over V2O5 NPs is size-dependent.
- 42 nm V2O5 NPs have a detecting limit better than 10−8 M R6G.
- SERS activity of R6G over V2O5 NPs is wavelength-dependent.
- Energy matching between V2O5 and R6G is essential in PICT process.