Abstract.
We have compared the resistivity, ρ, of sulfonated polyaniline (SPAN) prepared via three different synthetic routes: electrochemical synthesis with a supporting electrolyte (camphorsulfonic acid), ρ =340 Ω·m; electrochemical synthesis without a supporting electrolyte, ρ =530 Ω·m, and; chemical synthesis, ρ =166 Ω·m. Independent of the metal contact (Al, Au, Cu), SPAN forms ohmic contacts with the metal and the contact resistance r c ~5 Ω does not correlate with the metal's work function.
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Mello, R., Hümmelgen, I. Ohmic contacts between sulfonated polyaniline and metals. J Solid State Electrochem 5, 546–549 (2001). https://doi.org/10.1007/s100080000178
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DOI: https://doi.org/10.1007/s100080000178