Proton Conductivity of Oligomeric Poly[(1,2-Propanediamine)-alt-(Oxalic Acid) Thin Films on Al2.O3 Substrates

Yuki Nagao, Nobuhiro Naito, Fumitada Iguchi, Noriko Sata, Hiroo Yugami

Research output: Contribution to journalArticle

7 Citations (Scopus)

Abstract

Proton transport properties of three thin films (110, 240, and 360 nm thick films) on R-plane (1102) sapphire substrates for oligomeric poly[(1, 2-propanediamine)-alt-(oxalic acid)] were investigated. The maximum proton conductivity of the thin film is 1.7 × 10-3 S cm-1 at the RH of 80%, which is five times higher than that of the bulk sample (3.0 × 10-4 S cm-1). The activation energies of the 110, 240, and 360 nm thick films are found to 0.74, 0.67, and 0.68 eV at the RH of 80%, respectively.

Original languageEnglish
Pages (from-to)530-532
Number of pages3
Journale-Journal of Surface Science and Nanotechnology
Volume7
DOIs
Publication statusPublished - 2009 Apr 18

Keywords

  • Electrical transport
  • Enhancement
  • Proton conduction

ASJC Scopus subject areas

  • Biotechnology
  • Bioengineering
  • Condensed Matter Physics
  • Mechanics of Materials
  • Surfaces and Interfaces
  • Surfaces, Coatings and Films

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