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Raman Study of Polymer–Metal Hybrid Nanotubes Using Atomic Force/Confocal Combined Microscope

We used a laser confocal microscope combined with an atomic force microscope (AFM) to study poly(3-methylthiophene) (P3MT) and P3MT/Ni double-wall hybrid nanotubes. The Raman spectra and correlated AFM images of isolated single P3MT/Ni nanotubes were obtained and compared with those of the P3MT nanotubes. Results showed that in the P3MT/Ni double-wall hybrid nanotubes, doping-related Raman band intensities are greatly reduced, indicating the quenching of interband states with an outer Ni coating on the P3MT nanotubes.