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Please use this identifier to cite or link to this item: http://hdl.handle.net/10119/12335

Title: Surface proton transport of fully protonated poly(aspartic acid) thin films on quartz substrates
Authors: Nagao, Yuki
Kubo, Takahiro
Keywords: Proton conduction
Surface conduction
Issue Date: 2014-06-19
Publisher: Elsevier
Magazine name: Applied Surface Science
Volume: 323
Start page: 19
End page: 24
DOI: 10.1016/j.apsusc.2014.06.085
Abstract: Thin film structure and the proton transport property of fully protonated poly(aspartic acid) (P-Asp100) have been investigated. An earlier study assessed partially protonated poly(aspartic acid), highly oriented thin film structure and enhancement of the internal proton transport. In this study of P-Asp100, IR p-polarized multiple-angle incidence resolution (P-MAIR) spectra were measured to investigate the thin film structure. The obtained thin films, with thicknesses of 120 nm to 670 nm, had no oriented structure. Relative humidity dependence of the resistance, proton conductivity, and normalized resistance were examined to ascertain the proton transport property of P-Asp100 thin films. The obtained data showed that the proton transport of P-Asp100 thin films might occur on the surface, not inside of the thin film. This phenomenon might be related with the proton transport of the biological system.
Rights: NOTICE: This is the author's version of a work accepted for publication by Elsevier. Yuki Nagao, Takahiro Kubo, Applied Surface Science, 323, 2014, 19-24, http://dx.doi.org/10.1016/j.apsusc.2014.06.085
URI: http://hdl.handle.net/10119/12335
Material Type: author
Appears in Collections:c10-1. 雑誌掲載論文 (Journal Articles)

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