SERRS of free-base porphzrin in laser-ablated colloids: evidence for three different spectral porphyrin forms

Abstract

A new spectral form of porpfyrin identified by factor analysis of the time-evolution SERRS spectra of the porphyrin adsorbed on laser- ablated Ag nanoparticles

Keywords

• surface-enhanced Raman scattering
• porphyrin
• laser-ablated Ag colloid