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Proceedings Paper

Graphene oxide, reduced graphene oxide and composite thin films NO2 sensing properties
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Paper Abstract

A graphene oxide (GO), reduced graphene oxide (RGO) and poly(3,4-ethylenedioxytiophene)-reduced graphene oxide (PEDOT-RGO composite) gas sensors were successfully fabricated using an electro-deposition method. The electro-deposition was carried out in aqueous GO dispersions. To obtain RGO and PEDOT-RGO, the electrochemical reduction of GO and PEDOT-GO was carried out in 0.1 M KCl at a constant potential of −0.85 V. The GO, RGO and PEDOT-RGO composite were characterized by scanning electron microscopy (SEM). The fabricated sensors showed sensitivity to NO2 gas. In this work the sensing response of GO, RGO and PEDOT-RGO in NO2 at elevated temperatures were investigated. The influence of the operating temperature on the gas sensing response were compared. The role of the polymer and RGO in PEDOT-RGO composite was discussed. The results are discussed in light of recent literature on graphene sensors.

Paper Details

Date Published: 10 November 2016
PDF: 7 pages
Proc. SPIE 10161, 14th International Conference on Optical and Electronic Sensors, 101610S (10 November 2016); doi: 10.1117/12.2246761
Show Author Affiliations
Katarzyna J. Dunst, Gdansk Univ. of Technology (Poland)
Piotr Jasiński, Gdansk Univ. of Technology (Poland)

Published in SPIE Proceedings Vol. 10161:
14th International Conference on Optical and Electronic Sensors
Piotr Jasiński, Editor(s)

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