Abstract
In this study, the conductivities of various polypyrrole (PPy) films were evaluated via the corresponding surface-enhanced Raman scattering (SERS) spectrum and X-ray photoelectron spectroscopy (XPS). The results indicate that the peak position of C=C bonds stretching of PPy obtained from the SERS spectrum shows more exactly both qualitatively and quantitatively representing the conductivity of PPy than the N+/N ratio or the doping level obtained from the XPS analysis does. Namely the peak position of C=C bonds stretching of PPy monotone decreases to a lower frequency side with the increase of the conductivity of PPy. Furthermore, a satisfactory correlated equation between them was obtained. On the contrary, neither the N +/N ratio nor the doping level can be qualitatively reflective on the corresponding conductivity of PPy.
Original language | English |
---|---|
Pages (from-to) | 1134-1138 |
Number of pages | 5 |
Journal | Electroanalysis |
Volume | 15 |
Issue number | 13 |
DOIs | |
Publication status | Published - Aug 2003 |
Externally published | Yes |
Keywords
- Conductivity
- Polypyrrole films
- Surface-enhanced Raman scattering
- X-ray photoelectron spectroscopy
ASJC Scopus subject areas
- Analytical Chemistry