Proton Conductivity of Oligomeric Poly[(1,2-Propanediamine)-alt-(Oxalic Acid) Thin Films on Al2O3 Substrates

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

doi:10.1380/ejssnt.2009.530

Conference -ISSS-5-

Proton Conductivity of Oligomeric Poly[(1,2-Propanediamine)-alt-(Oxalic Acid) Thin Films on Al₂O₃ Substrates

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

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Keywords: Electrical transport, Enhancement, Proton conduction

JOURNAL FREE ACCESS

2009 Volume 7 Pages 530-532

DOI https://doi.org/10.1380/ejssnt.2009.530

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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. [DOI: 10.1380/ejssnt.2009.530]

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