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Laser patterned platform with PEDOT–graphene composite film for NO2 sensing

Abstrakt

This work presents a simple and fully electrochemical route used for fabricating of a NO2 gas sensor made of reduced-graphene-oxide-poly(3,4-ethylenedioxythiophene) composite film. The sensing platform was fabricated from alumina substrate and equipped with gold interdigitated electrodes and built-in heater.The temperature distribution on the surface of interdigitated electrodes was investigated by a thermalimaging camera and compared with numerical simulations. The sensing film was prepared on sensing platform by electropolymerization of EDOT monomer and graphene oxide solution and reduction in0.1 M KCl. A scanning electron microscopy and Raman spectroscopy of the sensing film were performed.Gas sensing measurements were carried out at elevated temperatures. The effects of the operating and annealing temperature of the gas sensing film to NO2on the sensing performance were investigated. The response characteristics in NO2 at elevated temperatures in a tube furnace and using a built-in heater were compared. The effect of the flow rate and relative humidity was also investigated.

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Kategoria:
Publikacja w czasopiśmie
Typ:
artykuł w czasopiśmie wyróżnionym w JCR
Opublikowano w:
SENSORS AND ACTUATORS B-CHEMICAL nr 229, strony 155 - 165,
ISSN: 0925-4005
Język:
angielski
Rok wydania:
2016
Opis bibliograficzny:
Dunst K., Jurków D., Jasiński P.: Laser patterned platform with PEDOT–graphene composite film for NO2 sensing// SENSORS AND ACTUATORS B-CHEMICAL. -Vol. 229, (2016), s.155-165
DOI:
Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1016/j.snb.2016.01.093
Weryfikacja:
Politechnika Gdańska

wyświetlono 37 razy

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