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

Katarzyna Dunst; Piotr Jasiński

doi:10.1117/12.2246761

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

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 electrodeposition method. The electrodeposition 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.

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Category:: Conference activity
Type:: materiały konferencyjne indeksowane w Web of Science
Title of issue:: 14th International Conference on Optical and Electronic Sensors COE'2016 strony 1 - 7
ISSN:: 0277-786X
Language:: English
Publication year:: 2016
Bibliographic description:: Dunst K., Jasiński P..: Graphene oxide, reduced graphene oxide and composite thin films NO2 sensing properties, W: 14th International Conference on Optical and Electronic Sensors COE'2016, 2016, SPIE-INT SOC OPTICAL ENGINEERING,.
DOI:: Digital Object Identifier (open in new tab) 10.1117/12.2246761
Verified by:: Gdańsk University of Technology