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Proceedings Paper

Toward a new sensing platform based on conducting polymer: thickness measurement and the effect of different oxidant solution on damage threshold
Author(s): Soroush Shahnia; Junaiz Rehmen; David Lancaster; Drew G. Evans; Shahraam Afshar
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Paper Abstract

Conducting polymers are widely researched in terms of both their electrical and optical properties. The optical properties are typically observed on the macroscopic scale. To broaden their application, fabrication and char- acterization of conducting polymers on the nanoscale thickness are required. In this study microscale volume poly(3,4-ethylenedioxytiophene)-tosylate (PEDOT:Tos) layers are fabricated at the tip of a single mode optical fibre without the need for intermediate layers such as Indium Tin Oxide. This allows for optical interrogation (primarily at 1550 nm) of the properties and behaviour of PEDOT:Tos below thicknesses of 500 nm. The optical response (transmission and back-reflection) of the PEDOT:Tos obtained by exposure to different oxidant solu- tion is measured. The effect of different oxidant solution on conductivity, thermal conductivity and degradation time will be examined. This knowledge will lead to implications for the use of conducting polymers in sensing applications where an optical response is detected via a fibre.

Paper Details

Date Published: 30 December 2019
PDF: 2 pages
Proc. SPIE 11200, AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019, 1120030 (30 December 2019); doi: 10.1117/12.2539940
Show Author Affiliations
Soroush Shahnia, Univ. of South Australia (Australia)
Junaiz Rehmen, Univ. of South Australia (Australia)
David Lancaster, Univ. of South Australia (Australia)
Drew G. Evans, Univ. of South Australia (Australia)
Shahraam Afshar, Univ. of South Australia (Australia)


Published in SPIE Proceedings Vol. 11200:
AOS Australian Conference on Optical Fibre Technology (ACOFT) and Australian Conference on Optics, Lasers, and Spectroscopy (ACOLS) 2019
Arnan Mitchell; Halina Rubinsztein-Dunlop, Editor(s)

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